diff --git a/.clang_format.hook b/.clang_format.hook new file mode 100644 index 0000000000000000000000000000000000000000..1d928216867c0ba3897d71542fea44debf8d72a0 --- /dev/null +++ b/.clang_format.hook @@ -0,0 +1,15 @@ +#!/bin/bash +set -e + +readonly VERSION="3.8" + +version=$(clang-format -version) + +if ! [[ $version == *"$VERSION"* ]]; then + echo "clang-format version check failed." + echo "a version contains '$VERSION' is needed, but get '$version'" + echo "you can install the right version, and make an soft-link to '\$PATH' env" + exit -1 +fi + +clang-format $@ diff --git a/deploy/lite/Makefile b/deploy/lite/Makefile index 53c4b708970c1a2ad839a5bd65eec586995db8e8..96e05ecf01904fdcb21a103e78783da6dd748ca9 100644 --- a/deploy/lite/Makefile +++ b/deploy/lite/Makefile @@ -40,12 +40,28 @@ CXX_LIBS = ${OPENCV_LIBS} -L$(LITE_ROOT)/cxx/lib/ -lpaddle_light_api_shared $(SY #CXX_LIBS = $(LITE_ROOT)/cxx/lib/libpaddle_api_light_bundled.a $(SYSTEM_LIBS) -ocr_db_crnn: fetch_opencv ocr_db_crnn.o - $(CC) $(SYSROOT_LINK) $(CXXFLAGS_LINK) ocr_db_crnn.o -o ocr_db_crnn $(CXX_LIBS) $(LDFLAGS) +ocr_db_crnn: fetch_opencv ocr_db_crnn.o crnn_process.o db_post_process.o clipper.o + $(CC) $(SYSROOT_LINK) $(CXXFLAGS_LINK) ocr_db_crnn.o crnn_process.o db_post_process.o clipper.o -o ocr_db_crnn $(CXX_LIBS) $(LDFLAGS) ocr_db_crnn.o: ocr_db_crnn.cc $(CC) $(SYSROOT_COMPLILE) $(CXX_DEFINES) $(CXX_INCLUDES) $(CXX_FLAGS) -o ocr_db_crnn.o -c ocr_db_crnn.cc +crnn_process.o: fetch_opencv crnn_process.cc + $(CC) $(SYSROOT_COMPLILE) $(CXX_DEFINES) $(CXX_INCLUDES) $(CXX_FLAGS) -o crnn_process.o -c crnn_process.cc + +db_post_process.o: fetch_clipper fetch_opencv db_post_process.cc + $(CC) $(SYSROOT_COMPLILE) $(CXX_DEFINES) $(CXX_INCLUDES) $(CXX_FLAGS) -o db_post_process.o -c db_post_process.cc + +clipper.o: fetch_clipper + $(CC) $(SYSROOT_COMPLILE) $(CXX_DEFINES) $(CXX_INCLUDES) $(CXX_FLAGS) -o clipper.o -c clipper.cpp + +fetch_clipper: + @test -e clipper.hpp || \ + ( echo "Fetch clipper " && \ + wget -c https://paddle-inference-dist.cdn.bcebos.com/PaddleLite/Clipper/clipper.hpp) + @ test -e clipper.cpp || \ + wget -c https://paddle-inference-dist.cdn.bcebos.com/PaddleLite/Clipper/clipper.cpp + fetch_opencv: @ test -d ${THIRD_PARTY_DIR} || mkdir ${THIRD_PARTY_DIR} @ test -e ${THIRD_PARTY_DIR}/${OPENCV_VERSION}.tar.gz || \ @@ -57,5 +73,5 @@ fetch_opencv: .PHONY: clean clean: - rm -f ocr_db_crnn.o - rm -f ocr_db_crnnn + rm -f ocr_db_crnn.o clipper.o db_post_process.o crnn_process.o + rm -f ocr_db_crnn diff --git a/deploy/lite/config.txt b/deploy/lite/config.txt new file mode 100644 index 0000000000000000000000000000000000000000..8ed835dd2c055b2cf1abb31c3c380204d66d7f2a --- /dev/null +++ b/deploy/lite/config.txt @@ -0,0 +1,4 @@ +max_side_len 960 +det_db_thresh 0.3 +det_db_box_thresh 0.5 +det_db_unclip_ratio 2.0 \ No newline at end of file diff --git a/deploy/lite/crnn_process.cc b/deploy/lite/crnn_process.cc new file mode 100644 index 0000000000000000000000000000000000000000..e6642b37049c19dc3c463aa2a0f77dab4b4a8b9f --- /dev/null +++ b/deploy/lite/crnn_process.cc @@ -0,0 +1,157 @@ +// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "crnn_process.h" //NOLINT +#include +#include +#include + +const std::vector rec_image_shape{3, 32, 320}; + +cv::Mat CrnnResizeNormImg(cv::Mat img, float wh_ratio) { + int imgC, imgH, imgW; + imgC = rec_image_shape[0]; + imgW = rec_image_shape[2]; + imgH = rec_image_shape[1]; + + imgW = int(32 * wh_ratio); + + float ratio = float(img.cols) / float(img.rows); + int resize_w, resize_h; + if (ceilf(imgH * ratio) > imgW) + resize_w = imgW; + else + resize_w = int(ceilf(imgH * ratio)); + cv::Mat resize_img; + cv::resize( + img, resize_img, cv::Size(resize_w, imgH), 0.f, 0.f, cv::INTER_CUBIC); + + resize_img.convertTo(resize_img, CV_32FC3, 1 / 255.f); + + for (int h = 0; h < resize_img.rows; h++) { + for (int w = 0; w < resize_img.cols; w++) { + resize_img.at(h, w)[0] = + (resize_img.at(h, w)[0] - 0.5) * 2; + resize_img.at(h, w)[1] = + (resize_img.at(h, w)[1] - 0.5) * 2; + resize_img.at(h, w)[2] = + (resize_img.at(h, w)[2] - 0.5) * 2; + } + } + + cv::Mat dist; + cv::copyMakeBorder(resize_img, + dist, + 0, + 0, + 0, + int(imgW - resize_w), + cv::BORDER_CONSTANT, + {0, 0, 0}); + + return dist; +} + +cv::Mat CrnnResizeImg(cv::Mat img, float wh_ratio) { + int imgC, imgH, imgW; + imgC = rec_image_shape[0]; + imgW = rec_image_shape[2]; + imgH = rec_image_shape[1]; + + imgW = int(32 * wh_ratio); + + float ratio = float(img.cols) / float(img.rows); + int resize_w, resize_h; + if (ceilf(imgH * ratio) > imgW) + resize_w = imgW; + else + resize_w = int(ceilf(imgH * ratio)); + cv::Mat resize_img; + cv::resize( + img, resize_img, cv::Size(resize_w, imgH), 0.f, 0.f, cv::INTER_LINEAR); + + return resize_img; +} + +std::vector ReadDict(std::string path) { + std::ifstream in(path); + std::string filename; + std::string line; + std::vector m_vec; + if (in) { + while (getline(in, line)) { + m_vec.push_back(line); + } + } else { + std::cout << "no such file" << std::endl; + } + return m_vec; +} + +cv::Mat GetRotateCropImage(cv::Mat srcimage, + std::vector> box) { + cv::Mat image; + srcimage.copyTo(image); + std::vector> points = box; + + int x_collect[4] = {box[0][0], box[1][0], box[2][0], box[3][0]}; + int y_collect[4] = {box[0][1], box[1][1], box[2][1], box[3][1]}; + int left = int(*std::min_element(x_collect, x_collect + 4)); + int right = int(*std::max_element(x_collect, x_collect + 4)); + int top = int(*std::min_element(y_collect, y_collect + 4)); + int bottom = int(*std::max_element(y_collect, y_collect + 4)); + + cv::Mat img_crop; + image(cv::Rect(left, top, right - left, bottom - top)).copyTo(img_crop); + + for (int i = 0; i < points.size(); i++) { + points[i][0] -= left; + points[i][1] -= top; + } + + int img_crop_width = int(sqrt(pow(points[0][0] - points[1][0], 2) + + pow(points[0][1] - points[1][1], 2))); + int img_crop_height = int(sqrt(pow(points[0][0] - points[3][0], 2) + + pow(points[0][1] - points[3][1], 2))); + + cv::Point2f pts_std[4]; + pts_std[0] = cv::Point2f(0., 0.); + pts_std[1] = cv::Point2f(img_crop_width, 0.); + pts_std[2] = cv::Point2f(img_crop_width, img_crop_height); + pts_std[3] = cv::Point2f(0.f, img_crop_height); + + cv::Point2f pointsf[4]; + pointsf[0] = cv::Point2f(points[0][0], points[0][1]); + pointsf[1] = cv::Point2f(points[1][0], points[1][1]); + pointsf[2] = cv::Point2f(points[2][0], points[2][1]); + pointsf[3] = cv::Point2f(points[3][0], points[3][1]); + + cv::Mat M = cv::getPerspectiveTransform(pointsf, pts_std); + + cv::Mat dst_img; + cv::warpPerspective(img_crop, + dst_img, + M, + cv::Size(img_crop_width, img_crop_height), + cv::BORDER_REPLICATE); + + if (float(dst_img.rows) >= float(dst_img.cols) * 1.5) { + cv::Mat srcCopy = cv::Mat(dst_img.rows, dst_img.cols, dst_img.depth()); + cv::transpose(dst_img, srcCopy); + cv::flip(srcCopy, srcCopy, 0); + return srcCopy; + } else { + return dst_img; + } +} diff --git a/deploy/lite/crnn_process.h b/deploy/lite/crnn_process.h new file mode 100644 index 0000000000000000000000000000000000000000..b63f58ba80d04451ce921cb924d1a015a0647242 --- /dev/null +++ b/deploy/lite/crnn_process.h @@ -0,0 +1,40 @@ +// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#pragma once + +#include +#include +#include +#include +#include +#include + +#include "math.h" //NOLINT +#include "opencv2/core.hpp" +#include "opencv2/imgcodecs.hpp" +#include "opencv2/imgproc.hpp" + +cv::Mat CrnnResizeNormImg(cv::Mat img, float wh_ratio); + +cv::Mat CrnnResizeImg(cv::Mat img, float wh_ratio); + +std::vector ReadDict(std::string path); + +cv::Mat GetRotateCropImage(cv::Mat srcimage, std::vector> box); + +template +inline size_t Argmax(ForwardIterator first, ForwardIterator last) { + return std::distance(first, std::max_element(first, last)); +} diff --git a/deploy/lite/db_post_process.cc b/deploy/lite/db_post_process.cc new file mode 100644 index 0000000000000000000000000000000000000000..53a796de9c8ae7aadbe689ba4c1928073ee0f654 --- /dev/null +++ b/deploy/lite/db_post_process.cc @@ -0,0 +1,279 @@ +// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "db_post_process.h" // NOLINT +#include +#include + +void GetContourArea(std::vector> box, + float unclip_ratio, + float& distance) { + int pts_num = 4; + float area = 0.0f; + float dist = 0.0f; + for (int i = 0; i < pts_num; i++) { + area += box[i][0] * box[(i + 1) % pts_num][1] - + box[i][1] * box[(i + 1) % pts_num][0]; + dist += sqrtf((box[i][0] - box[(i + 1) % pts_num][0]) * + (box[i][0] - box[(i + 1) % pts_num][0]) + + (box[i][1] - box[(i + 1) % pts_num][1]) * + (box[i][1] - box[(i + 1) % pts_num][1])); + } + area = fabs(float(area / 2.0)); + + distance = area * unclip_ratio / dist; +} + +cv::RotatedRect Unclip(std::vector> box, + float unclip_ratio) { + float distance = 1.0; + + GetContourArea(box, unclip_ratio, distance); + + ClipperLib::ClipperOffset offset; + ClipperLib::Path p; + p << ClipperLib::IntPoint(int(box[0][0]), int(box[0][1])) + << ClipperLib::IntPoint(int(box[1][0]), int(box[1][1])) + << ClipperLib::IntPoint(int(box[2][0]), int(box[2][1])) + << ClipperLib::IntPoint(int(box[3][0]), int(box[3][1])); + offset.AddPath(p, ClipperLib::jtRound, ClipperLib::etClosedPolygon); + + ClipperLib::Paths soln; + offset.Execute(soln, distance); + std::vector points; + + for (int j = 0; j < soln.size(); j++) { + for (int i = 0; i < soln[soln.size() - 1].size(); i++) { + points.emplace_back(soln[j][i].X, soln[j][i].Y); + } + } + cv::RotatedRect res = cv::minAreaRect(points); + + return res; +} + +std::vector> Mat2Vector(cv::Mat mat) { + std::vector> img_vec; + std::vector tmp; + + for (int i = 0; i < mat.rows; ++i) { + tmp.clear(); + for (int j = 0; j < mat.cols; ++j) { + tmp.push_back(mat.at(i, j)); + } + img_vec.push_back(tmp); + } + return img_vec; +} + +bool XsortFp32(std::vector a, std::vector b) { + if (a[0] != b[0]) return a[0] < b[0]; + return false; +} + +bool XsortInt(std::vector a, std::vector b) { + if (a[0] != b[0]) return a[0] < b[0]; + return false; +} + +std::vector> OrderPointsClockwise( + std::vector> pts) { + std::vector> box = pts; + std::sort(box.begin(), box.end(), XsortInt); + + std::vector> leftmost = {box[0], box[1]}; + std::vector> rightmost = {box[2], box[3]}; + + if (leftmost[0][1] > leftmost[1][1]) std::swap(leftmost[0], leftmost[1]); + + if (rightmost[0][1] > rightmost[1][1]) std::swap(rightmost[0], rightmost[1]); + + std::vector> rect = { + leftmost[0], rightmost[0], rightmost[1], leftmost[1]}; + return rect; +} + +std::vector> GetMiniBoxes(cv::RotatedRect box, float& ssid) { + ssid = box.size.width >= box.size.height ? box.size.height : box.size.width; + + cv::Mat points; + cv::boxPoints(box, points); + + auto array = Mat2Vector(points); + std::sort(array.begin(), array.end(), XsortFp32); + + std::vector idx1 = array[0], idx2 = array[1], idx3 = array[2], + idx4 = array[3]; + if (array[3][1] <= array[2][1]) { + idx2 = array[3]; + idx3 = array[2]; + } else { + idx2 = array[2]; + idx3 = array[3]; + } + if (array[1][1] <= array[0][1]) { + idx1 = array[1]; + idx4 = array[0]; + } else { + idx1 = array[0]; + idx4 = array[1]; + } + + array[0] = idx1; + array[1] = idx2; + array[2] = idx3; + array[3] = idx4; + + return array; +} + +float BoxScoreFast(std::vector> box_array, cv::Mat pred) { + auto array = box_array; + int width = pred.cols; + int height = pred.rows; + + float box_x[4] = {array[0][0], array[1][0], array[2][0], array[3][0]}; + float box_y[4] = {array[0][1], array[1][1], array[2][1], array[3][1]}; + + int xmin = clamp( + int(std::floorf(*(std::min_element(box_x, box_x + 4)))), 0, width - 1); + int xmax = clamp( + int(std::ceilf(*(std::max_element(box_x, box_x + 4)))), 0, width - 1); + int ymin = clamp( + int(std::floorf(*(std::min_element(box_y, box_y + 4)))), 0, height - 1); + int ymax = clamp( + int(std::ceilf(*(std::max_element(box_y, box_y + 4)))), 0, height - 1); + + cv::Mat mask; + mask = cv::Mat::zeros(ymax - ymin + 1, xmax - xmin + 1, CV_8UC1); + + cv::Point root_point[4]; + root_point[0] = cv::Point(int(array[0][0]) - xmin, int(array[0][1]) - ymin); + root_point[1] = cv::Point(int(array[1][0]) - xmin, int(array[1][1]) - ymin); + root_point[2] = cv::Point(int(array[2][0]) - xmin, int(array[2][1]) - ymin); + root_point[3] = cv::Point(int(array[3][0]) - xmin, int(array[3][1]) - ymin); + const cv::Point* ppt[1] = {root_point}; + int npt[] = {4}; + cv::fillPoly(mask, ppt, npt, 1, cv::Scalar(1)); + + cv::Mat croppedImg; + pred(cv::Rect(xmin, ymin, xmax - xmin + 1, ymax - ymin + 1)) + .copyTo(croppedImg); + + auto score = cv::mean(croppedImg, mask)[0]; + return score; +} + +std::vector>> BoxesFromBitmap( + const cv::Mat pred, + const cv::Mat bitmap, + std::map Config) { + const int min_size = 3; + const int max_candidates = 1000; + const float box_thresh = float(Config["det_db_box_thresh"]); + const float unclip_ratio = float(Config["det_db_unclip_ratio"]); + + int width = bitmap.cols; + int height = bitmap.rows; + + std::vector> contours; + std::vector hierarchy; + + cv::findContours( + bitmap, contours, hierarchy, cv::RETR_LIST, cv::CHAIN_APPROX_SIMPLE); + + int num_contours = + contours.size() >= max_candidates ? max_candidates : contours.size(); + + std::vector>> boxes; + + for (int i = 0; i < num_contours; i++) { + float ssid; + cv::RotatedRect box = cv::minAreaRect(contours[i]); + auto array = GetMiniBoxes(box, ssid); + + auto box_for_unclip = array; + // end get_mini_box + + if (ssid < min_size) { + continue; + } + + float score; + score = BoxScoreFast(array, pred); + // end box_score_fast + if (score < box_thresh) continue; + + // start for unclip + cv::RotatedRect points = Unclip(box_for_unclip, unclip_ratio); + // end for unclip + + cv::RotatedRect clipbox = points; + auto cliparray = GetMiniBoxes(clipbox, ssid); + + if (ssid < min_size + 2) continue; + + int dest_width = pred.cols; + int dest_height = pred.rows; + std::vector> intcliparray; + + for (int num_pt = 0; num_pt < 4; num_pt++) { + std::vector a{ + int(clamp( + roundf(cliparray[num_pt][0] / float(width) * float(dest_width)), + float(0), + float(dest_width))), + int(clamp( + roundf(cliparray[num_pt][1] / float(height) * float(dest_height)), + float(0), + float(dest_height)))}; + intcliparray.push_back(a); + } + boxes.push_back(intcliparray); + + } // end for + return boxes; +} + +std::vector>> FilterTagDetRes( + std::vector>> boxes, + float ratio_h, + float ratio_w, + cv::Mat srcimg) { + int oriimg_h = srcimg.rows; + int oriimg_w = srcimg.cols; + + std::vector>> root_points; + for (int n = 0; n < boxes.size(); n++) { + boxes[n] = OrderPointsClockwise(boxes[n]); + for (int m = 0; m < boxes[0].size(); m++) { + boxes[n][m][0] /= ratio_w; + boxes[n][m][1] /= ratio_h; + + boxes[n][m][0] = int(std::min(std::max(boxes[n][m][0], 0), oriimg_w - 1)); + boxes[n][m][1] = int(std::min(std::max(boxes[n][m][1], 0), oriimg_h - 1)); + } + } + + for (int n = 0; n < boxes.size(); n++) { + int rect_width, rect_height; + rect_width = int(sqrt(pow(boxes[n][0][0] - boxes[n][1][0], 2) + + pow(boxes[n][0][1] - boxes[n][1][1], 2))); + rect_height = int(sqrt(pow(boxes[n][0][0] - boxes[n][3][0], 2) + + pow(boxes[n][0][1] - boxes[n][3][1], 2))); + if (rect_width <= 10 || rect_height <= 10) continue; + root_points.push_back(boxes[n]); + } + return root_points; +} \ No newline at end of file diff --git a/deploy/lite/db_post_process.h b/deploy/lite/db_post_process.h new file mode 100644 index 0000000000000000000000000000000000000000..20710af20a6388e4b928dde16a5be6e160ceeba1 --- /dev/null +++ b/deploy/lite/db_post_process.h @@ -0,0 +1,65 @@ +// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#pragma once + +#include + +#include +#include +#include + +#include "opencv2/core.hpp" +#include "opencv2/imgcodecs.hpp" +#include "opencv2/imgproc.hpp" +#include "utils/clipper.hpp" + +template +T clamp(T x, T min, T max) { + if (x > max) return max; + if (x < min) return min; + return x; +} + +std::vector> Mat2Vector(cv::Mat mat); + +void GetContourArea(std::vector> box, + float unclip_ratio, + float &distance); + +cv::RotatedRect Unclip(std::vector> box, float unclip_ratio); + +std::vector> Mat2Vector(cv::Mat mat); + +bool XsortFp32(std::vector a, std::vector b); + +bool XsortInt(std::vector a, std::vector b); + +std::vector> OrderPointsClockwise( + std::vector> pts); + +std::vector> GetMiniBoxes(cv::RotatedRect box, float &ssid); + +float BoxScoreFast(std::vector> box_array, cv::Mat pred); + +std::vector>> BoxesFromBitmap( + const cv::Mat pred, + const cv::Mat bitmap, + std::map Config); + +std::vector>> FilterTagDetRes( + std::vector>> boxes, + float ratio_h, + float ratio_w, + cv::Mat srcimg); diff --git a/deploy/lite/ocr_db_crnn.cc b/deploy/lite/ocr_db_crnn.cc index 859d9d1232df69f424d91b30999b55b29569dccd..063a83714d650809c6ba657ffaf7b415cb7d0ae9 100644 --- a/deploy/lite/ocr_db_crnn.cc +++ b/deploy/lite/ocr_db_crnn.cc @@ -1,4 +1,4 @@ -// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved. +// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. @@ -12,32 +12,14 @@ // See the License for the specific language governing permissions and // limitations under the License. -#include -#include #include -#include "opencv2/core.hpp" -#include "opencv2/imgcodecs.hpp" -#include "opencv2/imgproc.hpp" #include "paddle_api.h" // NOLINT -#include "utils/db_post_process.cpp" -#include "utils/crnn_process.cpp" -#include -#include +#include "crnn_process.h" +#include "db_post_process.h" using namespace paddle::lite_api; // NOLINT - -struct Object { - cv::Rect rec; - int class_id; - float prob; -}; - -int64_t ShapeProduction(const shape_t& shape) { - int64_t res = 1; - for (auto i : shape) res *= i; - return res; -} +using namespace std; // fill tensor with mean and scale and trans layout: nhwc -> nchw, neon speed up void neon_mean_scale(const float* din, @@ -86,14 +68,16 @@ void neon_mean_scale(const float* din, } // resize image to a size multiple of 32 which is required by the network -cv::Mat resize_img_type0(const cv::Mat img, int max_size_len, float *ratio_h, float *ratio_w){ +cv::Mat DetResizeImg(const cv::Mat img, + int max_size_len, + std::vector& ratio_hw) { int w = img.cols; int h = img.rows; float ratio = 1.f; - int max_wh = w >=h ? w : h; - if (max_wh > max_size_len){ - if (h > w){ + int max_wh = w >= h ? w : h; + if (max_wh > max_size_len) { + if (h > w) { ratio = float(max_size_len) / float(h); } else { ratio = float(max_size_len) / float(w); @@ -104,36 +88,32 @@ cv::Mat resize_img_type0(const cv::Mat img, int max_size_len, float *ratio_h, fl int resize_w = int(float(w) * ratio); if (resize_h % 32 == 0) resize_h = resize_h; - else if (resize_h / 32 < 1) + else if (resize_h / 32 < 1 + 1e-5) resize_h = 32; else resize_h = (resize_h / 32 - 1) * 32; if (resize_w % 32 == 0) resize_w = resize_w; - else if (resize_w /32 < 1) + else if (resize_w / 32 < 1 + 1e-5) resize_w = 32; else - resize_w = (resize_w/32 - 1)*32; + resize_w = (resize_w / 32 - 1) * 32; cv::Mat resize_img; cv::resize(img, resize_img, cv::Size(resize_w, resize_h)); - *ratio_h = float(resize_h) / float(h); - *ratio_w = float(resize_w) / float(w); + ratio_hw.push_back(float(resize_h) / float(h)); + ratio_hw.push_back(float(resize_w) / float(w)); return resize_img; } -using namespace std; - -void RunRecModel(std::vector>> boxes, cv::Mat img, std::string rec_model_file){ - - MobileConfig config; - config.set_model_from_file(rec_model_file); - - std::shared_ptr predictor_crnn = - CreatePaddlePredictor(config); - +void RunRecModel(std::vector>> boxes, + cv::Mat img, + std::shared_ptr predictor_crnn, + std::string dict_path, + std::vector& rec_text, + std::vector& rec_text_score) { std::vector mean = {0.5f, 0.5f, 0.5f}; std::vector scale = {1 / 0.5f, 1 / 0.5f, 1 / 0.5f}; @@ -142,56 +122,55 @@ void RunRecModel(std::vector>> boxes, cv::Mat img, cv::Mat crop_img; cv::Mat resize_img; - std::string dict_path = "./ppocr_keys_v1.txt"; - auto charactor_dict = read_dict(dict_path); + auto charactor_dict = ReadDict(dict_path); - std::cout << "The predicted text is :" << std::endl; int index = 0; - for (int i=boxes.size()-1; i >= 0; i--) { - crop_img = get_rotate_crop_image(srcimg, boxes[i]); - + for (int i = boxes.size() - 1; i >= 0; i--) { + crop_img = GetRotateCropImage(srcimg, boxes[i]); float wh_ratio = float(crop_img.cols) / float(crop_img.rows); - resize_img = crnn_resize_img(crop_img, wh_ratio); + resize_img = CrnnResizeImg(crop_img, wh_ratio); resize_img.convertTo(resize_img, CV_32FC3, 1 / 255.f); - const float *dimg = reinterpret_cast(resize_img.data); + const float* dimg = reinterpret_cast(resize_img.data); - std::unique_ptr input_tensor0(std::move(predictor_crnn->GetInput(0))); + std::unique_ptr input_tensor0( + std::move(predictor_crnn->GetInput(0))); input_tensor0->Resize({1, 3, resize_img.rows, resize_img.cols}); - auto *data0 = input_tensor0->mutable_data(); - - neon_mean_scale(dimg, data0, resize_img.rows * resize_img.cols, mean, scale); + auto* data0 = input_tensor0->mutable_data(); + neon_mean_scale( + dimg, data0, resize_img.rows * resize_img.cols, mean, scale); //// Run CRNN predictor predictor_crnn->Run(); // Get output and run postprocess std::unique_ptr output_tensor0( - std::move(predictor_crnn->GetOutput(0))); - auto *rec_idx = output_tensor0->data(); + std::move(predictor_crnn->GetOutput(0))); + auto* rec_idx = output_tensor0->data(); auto rec_idx_lod = output_tensor0->lod(); auto shape_out = output_tensor0->shape(); std::vector pred_idx; - for (int n = int(rec_idx_lod[0][0]); n < int(rec_idx_lod[0][1] * 2); n += 2) { + for (int n = int(rec_idx_lod[0][0]); n < int(rec_idx_lod[0][1] * 2); + n += 2) { pred_idx.push_back(int(rec_idx[n])); } - if (pred_idx.size() < 1e-3) - continue; - std::cout << std::endl; + if (pred_idx.size() < 1e-3) continue; index += 1; - std::cout << index << "\t"; + std::string pred_txt = ""; for (int n = 0; n < pred_idx.size(); n++) { - std::cout << charactor_dict[pred_idx[n]]; + pred_txt += charactor_dict[pred_idx[n]]; } + rec_text.push_back(pred_txt); ////get score - std::unique_ptr output_tensor1(std::move(predictor_crnn->GetOutput(1))); - auto *predict_batch = output_tensor1->data(); + std::unique_ptr output_tensor1( + std::move(predictor_crnn->GetOutput(1))); + auto* predict_batch = output_tensor1->data(); auto predict_shape = output_tensor1->shape(); auto predict_lod = output_tensor1->lod(); @@ -203,38 +182,34 @@ void RunRecModel(std::vector>> boxes, cv::Mat img, float max_value = 0.0f; for (int n = predict_lod[0][0]; n < predict_lod[0][1] - 1; n++) { - argmax_idx = int(argmax(&predict_batch[n * predict_shape[1]], &predict_batch[(n + 1) * predict_shape[1]])); - max_value = float( - *std::max_element(&predict_batch[n * predict_shape[1]], &predict_batch[(n + 1) * predict_shape[1]])); + argmax_idx = int(Argmax(&predict_batch[n * predict_shape[1]], + &predict_batch[(n + 1) * predict_shape[1]])); + max_value = + float(*std::max_element(&predict_batch[n * predict_shape[1]], + &predict_batch[(n + 1) * predict_shape[1]])); if (blank - 1 - argmax_idx > 1e-5) { score += max_value; count += 1; } - } score /= count; - std::cout << "\tscore: " << score << std::endl; + rec_text_score.push_back(score); } } -std::vector>> RunDetModel(std::string model_file, cv::Mat img) { - // Set MobileConfig - MobileConfig config; - config.set_model_from_file(model_file); - - std::shared_ptr predictor = - CreatePaddlePredictor(config); - +std::vector>> RunDetModel( + std::shared_ptr predictor, + cv::Mat img, + std::map Config) { // Read img - int max_side_len = 960; - float ratio_h{}; - float ratio_w{}; + int max_side_len = int(Config["max_side_len"]); cv::Mat srcimg; img.copyTo(srcimg); - img = resize_img_type0(img, max_side_len, &ratio_h, &ratio_w); + std::vector ratio_hw; + img = DetResizeImg(img, max_side_len, ratio_hw); cv::Mat img_fp; img.convertTo(img_fp, CV_32FC3, 1.0 / 255.f); @@ -244,7 +219,7 @@ std::vector>> RunDetModel(std::string model_file, c auto* data0 = input_tensor0->mutable_data(); std::vector mean = {0.485f, 0.456f, 0.406f}; - std::vector scale = {1/0.229f, 1/0.224f, 1/0.225f}; + std::vector scale = {1 / 0.229f, 1 / 0.224f, 1 / 0.225f}; const float* dimg = reinterpret_cast(img_fp.data); neon_mean_scale(dimg, data0, img_fp.rows * img_fp.cols, mean, scale); @@ -252,7 +227,8 @@ std::vector>> RunDetModel(std::string model_file, c predictor->Run(); // Get output and post process - std::unique_ptr output_tensor(std::move(predictor->GetOutput(0))); + std::unique_ptr output_tensor( + std::move(predictor->GetOutput(0))); auto* outptr = output_tensor->data(); auto shape_out = output_tensor->shape(); @@ -266,68 +242,135 @@ std::vector>> RunDetModel(std::string model_file, c float pred[shape_out[2]][shape_out[3]]; unsigned char cbuf[shape_out[2]][shape_out[3]]; - for (int i=0; i< int(shape_out[2]*shape_out[3]); i++){ - pred[int(i/int(shape_out[3]))][int(i%shape_out[3])] = float(outptr[i]); - cbuf[int(i/int(shape_out[3]))][int(i%shape_out[3])] = (unsigned char) ((outptr[i])*255); + for (int i = 0; i < int(shape_out[2] * shape_out[3]); i++) { + pred[int(i / int(shape_out[3]))][int(i % shape_out[3])] = float(outptr[i]); + cbuf[int(i / int(shape_out[3]))][int(i % shape_out[3])] = + (unsigned char)((outptr[i]) * 255); } cv::Mat cbuf_map(shape_out[2], shape_out[3], CV_8UC1, (unsigned char*)cbuf); - cv::Mat pred_map(shape_out[2], shape_out[3], CV_32F, (float *)pred); + cv::Mat pred_map(shape_out[2], shape_out[3], CV_32F, (float*)pred); - const double threshold = 0.3*255; + const double threshold = double(Config["det_db_thresh"]) * 255; const double maxvalue = 255; cv::Mat bit_map; cv::threshold(cbuf_map, bit_map, threshold, maxvalue, cv::THRESH_BINARY); - auto boxes = boxes_from_bitmap(pred_map, bit_map); + auto boxes = BoxesFromBitmap(pred_map, bit_map, Config); - std::vector>> filter_boxes = filter_tag_det_res(boxes, ratio_h, ratio_w, srcimg); + std::vector>> filter_boxes = + FilterTagDetRes(boxes, ratio_hw[0], ratio_hw[1], srcimg); - //// visualization - cv::Point rook_points[filter_boxes.size()][4]; - for (int n=0; n loadModel(std::string model_file) { + MobileConfig config; + config.set_model_from_file(model_file); + + std::shared_ptr predictor = + CreatePaddlePredictor(config); + return predictor; +} + +cv::Mat Visualization(cv::Mat srcimg, + std::vector>> boxes) { + cv::Point rook_points[boxes.size()][4]; + for (int n = 0; n < boxes.size(); n++) { + for (int m = 0; m < boxes[0].size(); m++) { + rook_points[n][m] = cv::Point(int(boxes[n][m][0]), int(boxes[n][m][1])); } } - cv::Mat img_vis; srcimg.copyTo(img_vis); - for (int n=0; n split(const std::string& str, + const std::string& delim) { + std::vector res; + if ("" == str) return res; + char* strs = new char[str.length() + 1]; + std::strcpy(strs, str.c_str()); + + char* d = new char[delim.length() + 1]; + std::strcpy(d, delim.c_str()); + + char* p = std::strtok(strs, d); + while (p) { + string s = p; + res.push_back(s); + p = std::strtok(NULL, d); + } - return filter_boxes; + return res; } +std::map LoadConfigTxt(std::string config_path) { + auto config = ReadDict(config_path); + + std::map dict; + for (int i = 0; i < config.size(); i++) { + std::vector res = split(config[i], " "); + dict[res[0]] = stod(res[1]); + } + return dict; +} int main(int argc, char** argv) { - if (argc < 4) { - std::cerr << "[ERROR] usage: " << argv[0] << " det_model_file rec_model_file image_path\n"; + if (argc < 5) { + std::cerr << "[ERROR] usage: " << argv[0] + << " det_model_file rec_model_file image_path\n"; exit(1); } std::string det_model_file = argv[1]; std::string rec_model_file = argv[2]; std::string img_path = argv[3]; + std::string dict_path = argv[4]; + + //// load config from txt file + auto Config = LoadConfigTxt("./config.txt"); auto start = std::chrono::system_clock::now(); + auto det_predictor = loadModel(det_model_file); + auto rec_predictor = loadModel(rec_model_file); + cv::Mat srcimg = cv::imread(img_path, cv::IMREAD_COLOR); - auto boxes = RunDetModel(det_model_file, srcimg); + auto boxes = RunDetModel(det_predictor, srcimg, Config); - RunRecModel(boxes, srcimg, rec_model_file); + std::vector rec_text; + std::vector rec_text_score; + RunRecModel( + boxes, srcimg, rec_predictor, dict_path, rec_text, rec_text_score); - auto end = std::chrono::system_clock::now(); - auto duration = std::chrono::duration_cast(end - start); - std::cout << "花费了" - << double(duration.count()) * std::chrono::microseconds::period::num /std::chrono::microseconds::period::den + auto end = std::chrono::system_clock::now(); + auto duration = + std::chrono::duration_cast(end - start); + + //// visualization + auto img_vis = Visualization(srcimg, boxes); + + //// print recognized text + for (int i = 0; i < rec_text.size(); i++) { + std::cout << i << "\t" << rec_text[i] << "\t" << rec_text_score[i] + << std::endl; + } + + std::cout << "花费了" + << double(duration.count()) * + std::chrono::microseconds::period::num / + std::chrono::microseconds::period::den << "秒" << std::endl; return 0; } - diff --git a/deploy/lite/readme.md b/deploy/lite/readme.md index 1185f39ea1e82ca5163ce326b6593c7c29fa23b9..7e7d407d7146d0a227813a690ba779fe0d55ec20 100644 --- a/deploy/lite/readme.md +++ b/deploy/lite/readme.md @@ -128,7 +128,7 @@ wget https://paddleocr.bj.bcebos.com/ch_models/ch_rec_mv3_crnn_infer.tar && tar ### 2.2 与手机联调 首先需要进行一些准备工作。 - 1. 准备一台arm8的安卓手机，如果编译的预测库和opt文件是armv7，则需要arm7的手机。 + 1. 准备一台arm8的安卓手机，如果编译的预测库和opt文件是armv7，则需要arm7的手机，并修改Makefile中`ARM_ABI = arm7`。 2. 打开手机的USB调试选项，选择文件传输模式，连接电脑。 3. 电脑上安装adb工具，用于调试。在电脑终端中输入`adb devices`，如果有类似以下输出，则表示adb安装成功。 ``` @@ -148,12 +148,12 @@ wget https://paddleocr.bj.bcebos.com/ch_models/ch_rec_mv3_crnn_infer.tar && tar ``` 准备测试图像，以`PaddleOCR/doc/imgs/12.jpg`为例，将测试的图像复制到`demo/cxx/ocr/debug/`文件夹下。 准备字典文件，中文超轻量模型的字典文件是`PaddleOCR/ppocr/utils/ppocr_keys_v1.txt`，将其复制到`demo/cxx/ocr/debug/`文件夹下。 - + 执行完成后，ocr文件夹下将有如下文件格式： ``` demo/cxx/ocr/ -|-- debug/ +|-- debug/ | |--ch_det_mv3_db_opt.nb 优化后的检测模型文件 | |--ch_rec_mv3_crnn_opt.nb 优化后的识别模型文件 | |--12.jpg 待测试图像 @@ -171,7 +171,7 @@ demo/cxx/ocr/ 5. 启动调试 上述步骤完成后就可以使用adb将文件push到手机上运行，步骤如下： - + ``` # 执行编译，得到可执行文件ocr_db_crnn # ocr_db_crnn可执行文件的使用方式为: @@ -188,4 +188,3 @@ demo/cxx/ocr/ ``` 如果对代码做了修改，则需要重新编译并push到手机上。 - diff --git a/deploy/lite/utils/clipper.cpp b/deploy/lite/utils/clipper.cpp deleted file mode 100755 index 7e384acdba7c82719e730591ae269921d6b3063e..0000000000000000000000000000000000000000 --- a/deploy/lite/utils/clipper.cpp +++ /dev/null @@ -1,4629 +0,0 @@ -/******************************************************************************* -* * -* Author : Angus Johnson * -* Version : 6.4.2 * -* Date : 27 February 2017 * -* Website : http://www.angusj.com * -* Copyright : Angus Johnson 2010-2017 * -* * -* License: * -* Use, modification & distribution is subject to Boost Software License Ver 1. * -* http://www.boost.org/LICENSE_1_0.txt * -* * -* Attributions: * -* The code in this library is an extension of Bala Vatti's clipping algorithm: * -* "A generic solution to polygon clipping" * -* Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63. * -* http://portal.acm.org/citation.cfm?id=129906 * -* * -* Computer graphics and geometric modeling: implementation and algorithms * -* By Max K. Agoston * -* Springer; 1 edition (January 4, 2005) * -* http://books.google.com/books?q=vatti+clipping+agoston * -* * -* See also: * -* "Polygon Offsetting by Computing Winding Numbers" * -* Paper no. DETC2005-85513 pp. 565-575 * -* ASME 2005 International Design Engineering Technical Conferences * -* and Computers and Information in Engineering Conference (IDETC/CIE2005) * -* September 24-28, 2005 , Long Beach, California, USA * -* http://www.me.berkeley.edu/~mcmains/pubs/DAC05OffsetPolygon.pdf * -* * -*******************************************************************************/ - -/******************************************************************************* -* * -* This is a translation of the Delphi Clipper library and the naming style * -* used has retained a Delphi flavour. * -* * -*******************************************************************************/ - -#include "clipper.hpp" -#include -#include -#include -#include -#include -#include -#include -#include - -namespace ClipperLib { - -static double const pi = 3.141592653589793238; -static double const two_pi = pi *2; -static double const def_arc_tolerance = 0.25; - -enum Direction { dRightToLeft, dLeftToRight }; - -static int const Unassigned = -1; //edge not currently 'owning' a solution -static int const Skip = -2; //edge that would otherwise close a path - -#define HORIZONTAL (-1.0E+40) -#define TOLERANCE (1.0e-20) -#define NEAR_ZERO(val) (((val) > -TOLERANCE) && ((val) < TOLERANCE)) - -struct TEdge { - IntPoint Bot; - IntPoint Curr; //current (updated for every new scanbeam) - IntPoint Top; - double Dx; - PolyType PolyTyp; - EdgeSide Side; //side only refers to current side of solution poly - int WindDelta; //1 or -1 depending on winding direction - int WindCnt; - int WindCnt2; //winding count of the opposite polytype - int OutIdx; - TEdge *Next; - TEdge *Prev; - TEdge *NextInLML; - TEdge *NextInAEL; - TEdge *PrevInAEL; - TEdge *NextInSEL; - TEdge *PrevInSEL; -}; - -struct IntersectNode { - TEdge *Edge1; - TEdge *Edge2; - IntPoint Pt; -}; - -struct LocalMinimum { - cInt Y; - TEdge *LeftBound; - TEdge *RightBound; -}; - -struct OutPt; - -//OutRec: contains a path in the clipping solution. Edges in the AEL will -//carry a pointer to an OutRec when they are part of the clipping solution. -struct OutRec { - int Idx; - bool IsHole; - bool IsOpen; - OutRec *FirstLeft; //see comments in clipper.pas - PolyNode *PolyNd; - OutPt *Pts; - OutPt *BottomPt; -}; - -struct OutPt { - int Idx; - IntPoint Pt; - OutPt *Next; - OutPt *Prev; -}; - -struct Join { - OutPt *OutPt1; - OutPt *OutPt2; - IntPoint OffPt; -}; - -struct LocMinSorter -{ - inline bool operator()(const LocalMinimum& locMin1, const LocalMinimum& locMin2) - { - return locMin2.Y < locMin1.Y; - } -}; - -//------------------------------------------------------------------------------ -//------------------------------------------------------------------------------ - -inline cInt Round(double val) -{ - if ((val < 0)) return static_cast(val - 0.5); - else return static_cast(val + 0.5); -} -//------------------------------------------------------------------------------ - -inline cInt Abs(cInt val) -{ - return val < 0 ? -val : val; -} - -//------------------------------------------------------------------------------ -// PolyTree methods ... -//------------------------------------------------------------------------------ - -void PolyTree::Clear() -{ - for (PolyNodes::size_type i = 0; i < AllNodes.size(); ++i) - delete AllNodes[i]; - AllNodes.resize(0); - Childs.resize(0); -} -//------------------------------------------------------------------------------ - -PolyNode* PolyTree::GetFirst() const -{ - if (!Childs.empty()) - return Childs[0]; - else - return 0; -} -//------------------------------------------------------------------------------ - -int PolyTree::Total() const -{ - int result = (int)AllNodes.size(); - //with negative offsets, ignore the hidden outer polygon ... - if (result > 0 && Childs[0] != AllNodes[0]) result--; - return result; -} - -//------------------------------------------------------------------------------ -// PolyNode methods ... -//------------------------------------------------------------------------------ - -PolyNode::PolyNode(): Parent(0), Index(0), m_IsOpen(false) -{ -} -//------------------------------------------------------------------------------ - -int PolyNode::ChildCount() const -{ - return (int)Childs.size(); -} -//------------------------------------------------------------------------------ - -void PolyNode::AddChild(PolyNode& child) -{ - unsigned cnt = (unsigned)Childs.size(); - Childs.push_back(&child); - child.Parent = this; - child.Index = cnt; -} -//------------------------------------------------------------------------------ - -PolyNode* PolyNode::GetNext() const -{ - if (!Childs.empty()) - return Childs[0]; - else - return GetNextSiblingUp(); -} -//------------------------------------------------------------------------------ - -PolyNode* PolyNode::GetNextSiblingUp() const -{ - if (!Parent) //protects against PolyTree.GetNextSiblingUp() - return 0; - else if (Index == Parent->Childs.size() - 1) - return Parent->GetNextSiblingUp(); - else - return Parent->Childs[Index + 1]; -} -//------------------------------------------------------------------------------ - -bool PolyNode::IsHole() const -{ - bool result = true; - PolyNode* node = Parent; - while (node) - { - result = !result; - node = node->Parent; - } - return result; -} -//------------------------------------------------------------------------------ - -bool PolyNode::IsOpen() const -{ - return m_IsOpen; -} -//------------------------------------------------------------------------------ - -#ifndef use_int32 - -//------------------------------------------------------------------------------ -// Int128 class (enables safe math on signed 64bit integers) -// eg Int128 val1((long64)9223372036854775807); //ie 2^63 -1 -// Int128 val2((long64)9223372036854775807); -// Int128 val3 = val1 * val2; -// val3.AsString => "85070591730234615847396907784232501249" (8.5e+37) -//------------------------------------------------------------------------------ - -class Int128 -{ - public: - ulong64 lo; - long64 hi; - - Int128(long64 _lo = 0) - { - lo = (ulong64)_lo; - if (_lo < 0) hi = -1; else hi = 0; - } - - - Int128(const Int128 &val): lo(val.lo), hi(val.hi){} - - Int128(const long64& _hi, const ulong64& _lo): lo(_lo), hi(_hi){} - - Int128& operator = (const long64 &val) - { - lo = (ulong64)val; - if (val < 0) hi = -1; else hi = 0; - return *this; - } - - bool operator == (const Int128 &val) const - {return (hi == val.hi && lo == val.lo);} - - bool operator != (const Int128 &val) const - { return !(*this == val);} - - bool operator > (const Int128 &val) const - { - if (hi != val.hi) - return hi > val.hi; - else - return lo > val.lo; - } - - bool operator < (const Int128 &val) const - { - if (hi != val.hi) - return hi < val.hi; - else - return lo < val.lo; - } - - bool operator >= (const Int128 &val) const - { return !(*this < val);} - - bool operator <= (const Int128 &val) const - { return !(*this > val);} - - Int128& operator += (const Int128 &rhs) - { - hi += rhs.hi; - lo += rhs.lo; - if (lo < rhs.lo) hi++; - return *this; - } - - Int128 operator + (const Int128 &rhs) const - { - Int128 result(*this); - result+= rhs; - return result; - } - - Int128& operator -= (const Int128 &rhs) - { - *this += -rhs; - return *this; - } - - Int128 operator - (const Int128 &rhs) const - { - Int128 result(*this); - result -= rhs; - return result; - } - - Int128 operator-() const //unary negation - { - if (lo == 0) - return Int128(-hi, 0); - else - return Int128(~hi, ~lo + 1); - } - - operator double() const - { - const double shift64 = 18446744073709551616.0; //2^64 - if (hi < 0) - { - if (lo == 0) return (double)hi * shift64; - else return -(double)(~lo + ~hi * shift64); - } - else - return (double)(lo + hi * shift64); - } - -}; -//------------------------------------------------------------------------------ - -Int128 Int128Mul (long64 lhs, long64 rhs) -{ - bool negate = (lhs < 0) != (rhs < 0); - - if (lhs < 0) lhs = -lhs; - ulong64 int1Hi = ulong64(lhs) >> 32; - ulong64 int1Lo = ulong64(lhs & 0xFFFFFFFF); - - if (rhs < 0) rhs = -rhs; - ulong64 int2Hi = ulong64(rhs) >> 32; - ulong64 int2Lo = ulong64(rhs & 0xFFFFFFFF); - - //nb: see comments in clipper.pas - ulong64 a = int1Hi * int2Hi; - ulong64 b = int1Lo * int2Lo; - ulong64 c = int1Hi * int2Lo + int1Lo * int2Hi; - - Int128 tmp; - tmp.hi = long64(a + (c >> 32)); - tmp.lo = long64(c << 32); - tmp.lo += long64(b); - if (tmp.lo < b) tmp.hi++; - if (negate) tmp = -tmp; - return tmp; -}; -#endif - -//------------------------------------------------------------------------------ -// Miscellaneous global functions -//------------------------------------------------------------------------------ - -bool Orientation(const Path &poly) -{ - return Area(poly) >= 0; -} -//------------------------------------------------------------------------------ - -double Area(const Path &poly) -{ - int size = (int)poly.size(); - if (size < 3) return 0; - - double a = 0; - for (int i = 0, j = size -1; i < size; ++i) - { - a += ((double)poly[j].X + poly[i].X) * ((double)poly[j].Y - poly[i].Y); - j = i; - } - return -a * 0.5; -} -//------------------------------------------------------------------------------ - -double Area(const OutPt *op) -{ - const OutPt *startOp = op; - if (!op) return 0; - double a = 0; - do { - a += (double)(op->Prev->Pt.X + op->Pt.X) * (double)(op->Prev->Pt.Y - op->Pt.Y); - op = op->Next; - } while (op != startOp); - return a * 0.5; -} -//------------------------------------------------------------------------------ - -double Area(const OutRec &outRec) -{ - return Area(outRec.Pts); -} -//------------------------------------------------------------------------------ - -bool PointIsVertex(const IntPoint &Pt, OutPt *pp) -{ - OutPt *pp2 = pp; - do - { - if (pp2->Pt == Pt) return true; - pp2 = pp2->Next; - } - while (pp2 != pp); - return false; -} -//------------------------------------------------------------------------------ - -//See "The Point in Polygon Problem for Arbitrary Polygons" by Hormann & Agathos -//http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.88.5498&rep=rep1&type=pdf -int PointInPolygon(const IntPoint &pt, const Path &path) -{ - //returns 0 if false, +1 if true, -1 if pt ON polygon boundary - int result = 0; - size_t cnt = path.size(); - if (cnt < 3) return 0; - IntPoint ip = path[0]; - for(size_t i = 1; i <= cnt; ++i) - { - IntPoint ipNext = (i == cnt ? path[0] : path[i]); - if (ipNext.Y == pt.Y) - { - if ((ipNext.X == pt.X) || (ip.Y == pt.Y && - ((ipNext.X > pt.X) == (ip.X < pt.X)))) return -1; - } - if ((ip.Y < pt.Y) != (ipNext.Y < pt.Y)) - { - if (ip.X >= pt.X) - { - if (ipNext.X > pt.X) result = 1 - result; - else - { - double d = (double)(ip.X - pt.X) * (ipNext.Y - pt.Y) - - (double)(ipNext.X - pt.X) * (ip.Y - pt.Y); - if (!d) return -1; - if ((d > 0) == (ipNext.Y > ip.Y)) result = 1 - result; - } - } else - { - if (ipNext.X > pt.X) - { - double d = (double)(ip.X - pt.X) * (ipNext.Y - pt.Y) - - (double)(ipNext.X - pt.X) * (ip.Y - pt.Y); - if (!d) return -1; - if ((d > 0) == (ipNext.Y > ip.Y)) result = 1 - result; - } - } - } - ip = ipNext; - } - return result; -} -//------------------------------------------------------------------------------ - -int PointInPolygon (const IntPoint &pt, OutPt *op) -{ - //returns 0 if false, +1 if true, -1 if pt ON polygon boundary - int result = 0; - OutPt* startOp = op; - for(;;) - { - if (op->Next->Pt.Y == pt.Y) - { - if ((op->Next->Pt.X == pt.X) || (op->Pt.Y == pt.Y && - ((op->Next->Pt.X > pt.X) == (op->Pt.X < pt.X)))) return -1; - } - if ((op->Pt.Y < pt.Y) != (op->Next->Pt.Y < pt.Y)) - { - if (op->Pt.X >= pt.X) - { - if (op->Next->Pt.X > pt.X) result = 1 - result; - else - { - double d = (double)(op->Pt.X - pt.X) * (op->Next->Pt.Y - pt.Y) - - (double)(op->Next->Pt.X - pt.X) * (op->Pt.Y - pt.Y); - if (!d) return -1; - if ((d > 0) == (op->Next->Pt.Y > op->Pt.Y)) result = 1 - result; - } - } else - { - if (op->Next->Pt.X > pt.X) - { - double d = (double)(op->Pt.X - pt.X) * (op->Next->Pt.Y - pt.Y) - - (double)(op->Next->Pt.X - pt.X) * (op->Pt.Y - pt.Y); - if (!d) return -1; - if ((d > 0) == (op->Next->Pt.Y > op->Pt.Y)) result = 1 - result; - } - } - } - op = op->Next; - if (startOp == op) break; - } - return result; -} -//------------------------------------------------------------------------------ - -bool Poly2ContainsPoly1(OutPt *OutPt1, OutPt *OutPt2) -{ - OutPt* op = OutPt1; - do - { - //nb: PointInPolygon returns 0 if false, +1 if true, -1 if pt on polygon - int res = PointInPolygon(op->Pt, OutPt2); - if (res >= 0) return res > 0; - op = op->Next; - } - while (op != OutPt1); - return true; -} -//---------------------------------------------------------------------- - -bool SlopesEqual(const TEdge &e1, const TEdge &e2, bool UseFullInt64Range) -{ -#ifndef use_int32 - if (UseFullInt64Range) - return Int128Mul(e1.Top.Y - e1.Bot.Y, e2.Top.X - e2.Bot.X) == - Int128Mul(e1.Top.X - e1.Bot.X, e2.Top.Y - e2.Bot.Y); - else -#endif - return (e1.Top.Y - e1.Bot.Y) * (e2.Top.X - e2.Bot.X) == - (e1.Top.X - e1.Bot.X) * (e2.Top.Y - e2.Bot.Y); -} -//------------------------------------------------------------------------------ - -bool SlopesEqual(const IntPoint pt1, const IntPoint pt2, - const IntPoint pt3, bool UseFullInt64Range) -{ -#ifndef use_int32 - if (UseFullInt64Range) - return Int128Mul(pt1.Y-pt2.Y, pt2.X-pt3.X) == Int128Mul(pt1.X-pt2.X, pt2.Y-pt3.Y); - else -#endif - return (pt1.Y-pt2.Y)*(pt2.X-pt3.X) == (pt1.X-pt2.X)*(pt2.Y-pt3.Y); -} -//------------------------------------------------------------------------------ - -bool SlopesEqual(const IntPoint pt1, const IntPoint pt2, - const IntPoint pt3, const IntPoint pt4, bool UseFullInt64Range) -{ -#ifndef use_int32 - if (UseFullInt64Range) - return Int128Mul(pt1.Y-pt2.Y, pt3.X-pt4.X) == Int128Mul(pt1.X-pt2.X, pt3.Y-pt4.Y); - else -#endif - return (pt1.Y-pt2.Y)*(pt3.X-pt4.X) == (pt1.X-pt2.X)*(pt3.Y-pt4.Y); -} -//------------------------------------------------------------------------------ - -inline bool IsHorizontal(TEdge &e) -{ - return e.Dx == HORIZONTAL; -} -//------------------------------------------------------------------------------ - -inline double GetDx(const IntPoint pt1, const IntPoint pt2) -{ - return (pt1.Y == pt2.Y) ? - HORIZONTAL : (double)(pt2.X - pt1.X) / (pt2.Y - pt1.Y); -} -//--------------------------------------------------------------------------- - -inline void SetDx(TEdge &e) -{ - cInt dy = (e.Top.Y - e.Bot.Y); - if (dy == 0) e.Dx = HORIZONTAL; - else e.Dx = (double)(e.Top.X - e.Bot.X) / dy; -} -//--------------------------------------------------------------------------- - -inline void SwapSides(TEdge &Edge1, TEdge &Edge2) -{ - EdgeSide Side = Edge1.Side; - Edge1.Side = Edge2.Side; - Edge2.Side = Side; -} -//------------------------------------------------------------------------------ - -inline void SwapPolyIndexes(TEdge &Edge1, TEdge &Edge2) -{ - int OutIdx = Edge1.OutIdx; - Edge1.OutIdx = Edge2.OutIdx; - Edge2.OutIdx = OutIdx; -} -//------------------------------------------------------------------------------ - -inline cInt TopX(TEdge &edge, const cInt currentY) -{ - return ( currentY == edge.Top.Y ) ? - edge.Top.X : edge.Bot.X + Round(edge.Dx *(currentY - edge.Bot.Y)); -} -//------------------------------------------------------------------------------ - -void IntersectPoint(TEdge &Edge1, TEdge &Edge2, IntPoint &ip) -{ -#ifdef use_xyz - ip.Z = 0; -#endif - - double b1, b2; - if (Edge1.Dx == Edge2.Dx) - { - ip.Y = Edge1.Curr.Y; - ip.X = TopX(Edge1, ip.Y); - return; - } - else if (Edge1.Dx == 0) - { - ip.X = Edge1.Bot.X; - if (IsHorizontal(Edge2)) - ip.Y = Edge2.Bot.Y; - else - { - b2 = Edge2.Bot.Y - (Edge2.Bot.X / Edge2.Dx); - ip.Y = Round(ip.X / Edge2.Dx + b2); - } - } - else if (Edge2.Dx == 0) - { - ip.X = Edge2.Bot.X; - if (IsHorizontal(Edge1)) - ip.Y = Edge1.Bot.Y; - else - { - b1 = Edge1.Bot.Y - (Edge1.Bot.X / Edge1.Dx); - ip.Y = Round(ip.X / Edge1.Dx + b1); - } - } - else - { - b1 = Edge1.Bot.X - Edge1.Bot.Y * Edge1.Dx; - b2 = Edge2.Bot.X - Edge2.Bot.Y * Edge2.Dx; - double q = (b2-b1) / (Edge1.Dx - Edge2.Dx); - ip.Y = Round(q); - if (std::fabs(Edge1.Dx) < std::fabs(Edge2.Dx)) - ip.X = Round(Edge1.Dx * q + b1); - else - ip.X = Round(Edge2.Dx * q + b2); - } - - if (ip.Y < Edge1.Top.Y || ip.Y < Edge2.Top.Y) - { - if (Edge1.Top.Y > Edge2.Top.Y) - ip.Y = Edge1.Top.Y; - else - ip.Y = Edge2.Top.Y; - if (std::fabs(Edge1.Dx) < std::fabs(Edge2.Dx)) - ip.X = TopX(Edge1, ip.Y); - else - ip.X = TopX(Edge2, ip.Y); - } - //finally, don't allow 'ip' to be BELOW curr.Y (ie bottom of scanbeam) ... - if (ip.Y > Edge1.Curr.Y) - { - ip.Y = Edge1.Curr.Y; - //use the more vertical edge to derive X ... - if (std::fabs(Edge1.Dx) > std::fabs(Edge2.Dx)) - ip.X = TopX(Edge2, ip.Y); else - ip.X = TopX(Edge1, ip.Y); - } -} -//------------------------------------------------------------------------------ - -void ReversePolyPtLinks(OutPt *pp) -{ - if (!pp) return; - OutPt *pp1, *pp2; - pp1 = pp; - do { - pp2 = pp1->Next; - pp1->Next = pp1->Prev; - pp1->Prev = pp2; - pp1 = pp2; - } while( pp1 != pp ); -} -//------------------------------------------------------------------------------ - -void DisposeOutPts(OutPt*& pp) -{ - if (pp == 0) return; - pp->Prev->Next = 0; - while( pp ) - { - OutPt *tmpPp = pp; - pp = pp->Next; - delete tmpPp; - } -} -//------------------------------------------------------------------------------ - -inline void InitEdge(TEdge* e, TEdge* eNext, TEdge* ePrev, const IntPoint& Pt) -{ - std::memset(e, 0, sizeof(TEdge)); - e->Next = eNext; - e->Prev = ePrev; - e->Curr = Pt; - e->OutIdx = Unassigned; -} -//------------------------------------------------------------------------------ - -void InitEdge2(TEdge& e, PolyType Pt) -{ - if (e.Curr.Y >= e.Next->Curr.Y) - { - e.Bot = e.Curr; - e.Top = e.Next->Curr; - } else - { - e.Top = e.Curr; - e.Bot = e.Next->Curr; - } - SetDx(e); - e.PolyTyp = Pt; -} -//------------------------------------------------------------------------------ - -TEdge* RemoveEdge(TEdge* e) -{ - //removes e from double_linked_list (but without removing from memory) - e->Prev->Next = e->Next; - e->Next->Prev = e->Prev; - TEdge* result = e->Next; - e->Prev = 0; //flag as removed (see ClipperBase.Clear) - return result; -} -//------------------------------------------------------------------------------ - -inline void ReverseHorizontal(TEdge &e) -{ - //swap horizontal edges' Top and Bottom x's so they follow the natural - //progression of the bounds - ie so their xbots will align with the - //adjoining lower edge. [Helpful in the ProcessHorizontal() method.] - std::swap(e.Top.X, e.Bot.X); -#ifdef use_xyz - std::swap(e.Top.Z, e.Bot.Z); -#endif -} -//------------------------------------------------------------------------------ - -void SwapPoints(IntPoint &pt1, IntPoint &pt2) -{ - IntPoint tmp = pt1; - pt1 = pt2; - pt2 = tmp; -} -//------------------------------------------------------------------------------ - -bool GetOverlapSegment(IntPoint pt1a, IntPoint pt1b, IntPoint pt2a, - IntPoint pt2b, IntPoint &pt1, IntPoint &pt2) -{ - //precondition: segments are Collinear. - if (Abs(pt1a.X - pt1b.X) > Abs(pt1a.Y - pt1b.Y)) - { - if (pt1a.X > pt1b.X) SwapPoints(pt1a, pt1b); - if (pt2a.X > pt2b.X) SwapPoints(pt2a, pt2b); - if (pt1a.X > pt2a.X) pt1 = pt1a; else pt1 = pt2a; - if (pt1b.X < pt2b.X) pt2 = pt1b; else pt2 = pt2b; - return pt1.X < pt2.X; - } else - { - if (pt1a.Y < pt1b.Y) SwapPoints(pt1a, pt1b); - if (pt2a.Y < pt2b.Y) SwapPoints(pt2a, pt2b); - if (pt1a.Y < pt2a.Y) pt1 = pt1a; else pt1 = pt2a; - if (pt1b.Y > pt2b.Y) pt2 = pt1b; else pt2 = pt2b; - return pt1.Y > pt2.Y; - } -} -//------------------------------------------------------------------------------ - -bool FirstIsBottomPt(const OutPt* btmPt1, const OutPt* btmPt2) -{ - OutPt *p = btmPt1->Prev; - while ((p->Pt == btmPt1->Pt) && (p != btmPt1)) p = p->Prev; - double dx1p = std::fabs(GetDx(btmPt1->Pt, p->Pt)); - p = btmPt1->Next; - while ((p->Pt == btmPt1->Pt) && (p != btmPt1)) p = p->Next; - double dx1n = std::fabs(GetDx(btmPt1->Pt, p->Pt)); - - p = btmPt2->Prev; - while ((p->Pt == btmPt2->Pt) && (p != btmPt2)) p = p->Prev; - double dx2p = std::fabs(GetDx(btmPt2->Pt, p->Pt)); - p = btmPt2->Next; - while ((p->Pt == btmPt2->Pt) && (p != btmPt2)) p = p->Next; - double dx2n = std::fabs(GetDx(btmPt2->Pt, p->Pt)); - - if (std::max(dx1p, dx1n) == std::max(dx2p, dx2n) && - std::min(dx1p, dx1n) == std::min(dx2p, dx2n)) - return Area(btmPt1) > 0; //if otherwise identical use orientation - else - return (dx1p >= dx2p && dx1p >= dx2n) || (dx1n >= dx2p && dx1n >= dx2n); -} -//------------------------------------------------------------------------------ - -OutPt* GetBottomPt(OutPt *pp) -{ - OutPt* dups = 0; - OutPt* p = pp->Next; - while (p != pp) - { - if (p->Pt.Y > pp->Pt.Y) - { - pp = p; - dups = 0; - } - else if (p->Pt.Y == pp->Pt.Y && p->Pt.X <= pp->Pt.X) - { - if (p->Pt.X < pp->Pt.X) - { - dups = 0; - pp = p; - } else - { - if (p->Next != pp && p->Prev != pp) dups = p; - } - } - p = p->Next; - } - if (dups) - { - //there appears to be at least 2 vertices at BottomPt so ... - while (dups != p) - { - if (!FirstIsBottomPt(p, dups)) pp = dups; - dups = dups->Next; - while (dups->Pt != pp->Pt) dups = dups->Next; - } - } - return pp; -} -//------------------------------------------------------------------------------ - -bool Pt2IsBetweenPt1AndPt3(const IntPoint pt1, - const IntPoint pt2, const IntPoint pt3) -{ - if ((pt1 == pt3) || (pt1 == pt2) || (pt3 == pt2)) - return false; - else if (pt1.X != pt3.X) - return (pt2.X > pt1.X) == (pt2.X < pt3.X); - else - return (pt2.Y > pt1.Y) == (pt2.Y < pt3.Y); -} -//------------------------------------------------------------------------------ - -bool HorzSegmentsOverlap(cInt seg1a, cInt seg1b, cInt seg2a, cInt seg2b) -{ - if (seg1a > seg1b) std::swap(seg1a, seg1b); - if (seg2a > seg2b) std::swap(seg2a, seg2b); - return (seg1a < seg2b) && (seg2a < seg1b); -} - -//------------------------------------------------------------------------------ -// ClipperBase class methods ... -//------------------------------------------------------------------------------ - -ClipperBase::ClipperBase() //constructor -{ - m_CurrentLM = m_MinimaList.begin(); //begin() == end() here - m_UseFullRange = false; -} -//------------------------------------------------------------------------------ - -ClipperBase::~ClipperBase() //destructor -{ - Clear(); -} -//------------------------------------------------------------------------------ - -void RangeTest(const IntPoint& Pt, bool& useFullRange) -{ - if (useFullRange) - { - if (Pt.X > hiRange || Pt.Y > hiRange || -Pt.X > hiRange || -Pt.Y > hiRange) - throw clipperException("Coordinate outside allowed range"); - } - else if (Pt.X > loRange|| Pt.Y > loRange || -Pt.X > loRange || -Pt.Y > loRange) - { - useFullRange = true; - RangeTest(Pt, useFullRange); - } -} -//------------------------------------------------------------------------------ - -TEdge* FindNextLocMin(TEdge* E) -{ - for (;;) - { - while (E->Bot != E->Prev->Bot || E->Curr == E->Top) E = E->Next; - if (!IsHorizontal(*E) && !IsHorizontal(*E->Prev)) break; - while (IsHorizontal(*E->Prev)) E = E->Prev; - TEdge* E2 = E; - while (IsHorizontal(*E)) E = E->Next; - if (E->Top.Y == E->Prev->Bot.Y) continue; //ie just an intermediate horz. - if (E2->Prev->Bot.X < E->Bot.X) E = E2; - break; - } - return E; -} -//------------------------------------------------------------------------------ - -TEdge* ClipperBase::ProcessBound(TEdge* E, bool NextIsForward) -{ - TEdge *Result = E; - TEdge *Horz = 0; - - if (E->OutIdx == Skip) - { - //if edges still remain in the current bound beyond the skip edge then - //create another LocMin and call ProcessBound once more - if (NextIsForward) - { - while (E->Top.Y == E->Next->Bot.Y) E = E->Next; - //don't include top horizontals when parsing a bound a second time, - //they will be contained in the opposite bound ... - while (E != Result && IsHorizontal(*E)) E = E->Prev; - } - else - { - while (E->Top.Y == E->Prev->Bot.Y) E = E->Prev; - while (E != Result && IsHorizontal(*E)) E = E->Next; - } - - if (E == Result) - { - if (NextIsForward) Result = E->Next; - else Result = E->Prev; - } - else - { - //there are more edges in the bound beyond result starting with E - if (NextIsForward) - E = Result->Next; - else - E = Result->Prev; - MinimaList::value_type locMin; - locMin.Y = E->Bot.Y; - locMin.LeftBound = 0; - locMin.RightBound = E; - E->WindDelta = 0; - Result = ProcessBound(E, NextIsForward); - m_MinimaList.push_back(locMin); - } - return Result; - } - - TEdge *EStart; - - if (IsHorizontal(*E)) - { - //We need to be careful with open paths because this may not be a - //true local minima (ie E may be following a skip edge). - //Also, consecutive horz. edges may start heading left before going right. - if (NextIsForward) - EStart = E->Prev; - else - EStart = E->Next; - if (IsHorizontal(*EStart)) //ie an adjoining horizontal skip edge - { - if (EStart->Bot.X != E->Bot.X && EStart->Top.X != E->Bot.X) - ReverseHorizontal(*E); - } - else if (EStart->Bot.X != E->Bot.X) - ReverseHorizontal(*E); - } - - EStart = E; - if (NextIsForward) - { - while (Result->Top.Y == Result->Next->Bot.Y && Result->Next->OutIdx != Skip) - Result = Result->Next; - if (IsHorizontal(*Result) && Result->Next->OutIdx != Skip) - { - //nb: at the top of a bound, horizontals are added to the bound - //only when the preceding edge attaches to the horizontal's left vertex - //unless a Skip edge is encountered when that becomes the top divide - Horz = Result; - while (IsHorizontal(*Horz->Prev)) Horz = Horz->Prev; - if (Horz->Prev->Top.X > Result->Next->Top.X) Result = Horz->Prev; - } - while (E != Result) - { - E->NextInLML = E->Next; - if (IsHorizontal(*E) && E != EStart && - E->Bot.X != E->Prev->Top.X) ReverseHorizontal(*E); - E = E->Next; - } - if (IsHorizontal(*E) && E != EStart && E->Bot.X != E->Prev->Top.X) - ReverseHorizontal(*E); - Result = Result->Next; //move to the edge just beyond current bound - } else - { - while (Result->Top.Y == Result->Prev->Bot.Y && Result->Prev->OutIdx != Skip) - Result = Result->Prev; - if (IsHorizontal(*Result) && Result->Prev->OutIdx != Skip) - { - Horz = Result; - while (IsHorizontal(*Horz->Next)) Horz = Horz->Next; - if (Horz->Next->Top.X == Result->Prev->Top.X || - Horz->Next->Top.X > Result->Prev->Top.X) Result = Horz->Next; - } - - while (E != Result) - { - E->NextInLML = E->Prev; - if (IsHorizontal(*E) && E != EStart && E->Bot.X != E->Next->Top.X) - ReverseHorizontal(*E); - E = E->Prev; - } - if (IsHorizontal(*E) && E != EStart && E->Bot.X != E->Next->Top.X) - ReverseHorizontal(*E); - Result = Result->Prev; //move to the edge just beyond current bound - } - - return Result; -} -//------------------------------------------------------------------------------ - -bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed) -{ -#ifdef use_lines - if (!Closed && PolyTyp == ptClip) - throw clipperException("AddPath: Open paths must be subject."); -#else - if (!Closed) - throw clipperException("AddPath: Open paths have been disabled."); -#endif - - int highI = (int)pg.size() -1; - if (Closed) while (highI > 0 && (pg[highI] == pg[0])) --highI; - while (highI > 0 && (pg[highI] == pg[highI -1])) --highI; - if ((Closed && highI < 2) || (!Closed && highI < 1)) return false; - - //create a new edge array ... - TEdge *edges = new TEdge [highI +1]; - - bool IsFlat = true; - //1. Basic (first) edge initialization ... - try - { - edges[1].Curr = pg[1]; - RangeTest(pg[0], m_UseFullRange); - RangeTest(pg[highI], m_UseFullRange); - InitEdge(&edges[0], &edges[1], &edges[highI], pg[0]); - InitEdge(&edges[highI], &edges[0], &edges[highI-1], pg[highI]); - for (int i = highI - 1; i >= 1; --i) - { - RangeTest(pg[i], m_UseFullRange); - InitEdge(&edges[i], &edges[i+1], &edges[i-1], pg[i]); - } - } - catch(...) - { - delete [] edges; - throw; //range test fails - } - TEdge *eStart = &edges[0]; - - //2. Remove duplicate vertices, and (when closed) collinear edges ... - TEdge *E = eStart, *eLoopStop = eStart; - for (;;) - { - //nb: allows matching start and end points when not Closed ... - if (E->Curr == E->Next->Curr && (Closed || E->Next != eStart)) - { - if (E == E->Next) break; - if (E == eStart) eStart = E->Next; - E = RemoveEdge(E); - eLoopStop = E; - continue; - } - if (E->Prev == E->Next) - break; //only two vertices - else if (Closed && - SlopesEqual(E->Prev->Curr, E->Curr, E->Next->Curr, m_UseFullRange) && - (!m_PreserveCollinear || - !Pt2IsBetweenPt1AndPt3(E->Prev->Curr, E->Curr, E->Next->Curr))) - { - //Collinear edges are allowed for open paths but in closed paths - //the default is to merge adjacent collinear edges into a single edge. - //However, if the PreserveCollinear property is enabled, only overlapping - //collinear edges (ie spikes) will be removed from closed paths. - if (E == eStart) eStart = E->Next; - E = RemoveEdge(E); - E = E->Prev; - eLoopStop = E; - continue; - } - E = E->Next; - if ((E == eLoopStop) || (!Closed && E->Next == eStart)) break; - } - - if ((!Closed && (E == E->Next)) || (Closed && (E->Prev == E->Next))) - { - delete [] edges; - return false; - } - - if (!Closed) - { - m_HasOpenPaths = true; - eStart->Prev->OutIdx = Skip; - } - - //3. Do second stage of edge initialization ... - E = eStart; - do - { - InitEdge2(*E, PolyTyp); - E = E->Next; - if (IsFlat && E->Curr.Y != eStart->Curr.Y) IsFlat = false; - } - while (E != eStart); - - //4. Finally, add edge bounds to LocalMinima list ... - - //Totally flat paths must be handled differently when adding them - //to LocalMinima list to avoid endless loops etc ... - if (IsFlat) - { - if (Closed) - { - delete [] edges; - return false; - } - E->Prev->OutIdx = Skip; - MinimaList::value_type locMin; - locMin.Y = E->Bot.Y; - locMin.LeftBound = 0; - locMin.RightBound = E; - locMin.RightBound->Side = esRight; - locMin.RightBound->WindDelta = 0; - for (;;) - { - if (E->Bot.X != E->Prev->Top.X) ReverseHorizontal(*E); - if (E->Next->OutIdx == Skip) break; - E->NextInLML = E->Next; - E = E->Next; - } - m_MinimaList.push_back(locMin); - m_edges.push_back(edges); - return true; - } - - m_edges.push_back(edges); - bool leftBoundIsForward; - TEdge* EMin = 0; - - //workaround to avoid an endless loop in the while loop below when - //open paths have matching start and end points ... - if (E->Prev->Bot == E->Prev->Top) E = E->Next; - - for (;;) - { - E = FindNextLocMin(E); - if (E == EMin) break; - else if (!EMin) EMin = E; - - //E and E.Prev now share a local minima (left aligned if horizontal). - //Compare their slopes to find which starts which bound ... - MinimaList::value_type locMin; - locMin.Y = E->Bot.Y; - if (E->Dx < E->Prev->Dx) - { - locMin.LeftBound = E->Prev; - locMin.RightBound = E; - leftBoundIsForward = false; //Q.nextInLML = Q.prev - } else - { - locMin.LeftBound = E; - locMin.RightBound = E->Prev; - leftBoundIsForward = true; //Q.nextInLML = Q.next - } - - if (!Closed) locMin.LeftBound->WindDelta = 0; - else if (locMin.LeftBound->Next == locMin.RightBound) - locMin.LeftBound->WindDelta = -1; - else locMin.LeftBound->WindDelta = 1; - locMin.RightBound->WindDelta = -locMin.LeftBound->WindDelta; - - E = ProcessBound(locMin.LeftBound, leftBoundIsForward); - if (E->OutIdx == Skip) E = ProcessBound(E, leftBoundIsForward); - - TEdge* E2 = ProcessBound(locMin.RightBound, !leftBoundIsForward); - if (E2->OutIdx == Skip) E2 = ProcessBound(E2, !leftBoundIsForward); - - if (locMin.LeftBound->OutIdx == Skip) - locMin.LeftBound = 0; - else if (locMin.RightBound->OutIdx == Skip) - locMin.RightBound = 0; - m_MinimaList.push_back(locMin); - if (!leftBoundIsForward) E = E2; - } - return true; -} -//------------------------------------------------------------------------------ - -bool ClipperBase::AddPaths(const Paths &ppg, PolyType PolyTyp, bool Closed) -{ - bool result = false; - for (Paths::size_type i = 0; i < ppg.size(); ++i) - if (AddPath(ppg[i], PolyTyp, Closed)) result = true; - return result; -} -//------------------------------------------------------------------------------ - -void ClipperBase::Clear() -{ - DisposeLocalMinimaList(); - for (EdgeList::size_type i = 0; i < m_edges.size(); ++i) - { - TEdge* edges = m_edges[i]; - delete [] edges; - } - m_edges.clear(); - m_UseFullRange = false; - m_HasOpenPaths = false; -} -//------------------------------------------------------------------------------ - -void ClipperBase::Reset() -{ - m_CurrentLM = m_MinimaList.begin(); - if (m_CurrentLM == m_MinimaList.end()) return; //ie nothing to process - std::sort(m_MinimaList.begin(), m_MinimaList.end(), LocMinSorter()); - - m_Scanbeam = ScanbeamList(); //clears/resets priority_queue - //reset all edges ... - for (MinimaList::iterator lm = m_MinimaList.begin(); lm != m_MinimaList.end(); ++lm) - { - InsertScanbeam(lm->Y); - TEdge* e = lm->LeftBound; - if (e) - { - e->Curr = e->Bot; - e->Side = esLeft; - e->OutIdx = Unassigned; - } - - e = lm->RightBound; - if (e) - { - e->Curr = e->Bot; - e->Side = esRight; - e->OutIdx = Unassigned; - } - } - m_ActiveEdges = 0; - m_CurrentLM = m_MinimaList.begin(); -} -//------------------------------------------------------------------------------ - -void ClipperBase::DisposeLocalMinimaList() -{ - m_MinimaList.clear(); - m_CurrentLM = m_MinimaList.begin(); -} -//------------------------------------------------------------------------------ - -bool ClipperBase::PopLocalMinima(cInt Y, const LocalMinimum *&locMin) -{ - if (m_CurrentLM == m_MinimaList.end() || (*m_CurrentLM).Y != Y) return false; - locMin = &(*m_CurrentLM); - ++m_CurrentLM; - return true; -} -//------------------------------------------------------------------------------ - -IntRect ClipperBase::GetBounds() -{ - IntRect result; - MinimaList::iterator lm = m_MinimaList.begin(); - if (lm == m_MinimaList.end()) - { - result.left = result.top = result.right = result.bottom = 0; - return result; - } - result.left = lm->LeftBound->Bot.X; - result.top = lm->LeftBound->Bot.Y; - result.right = lm->LeftBound->Bot.X; - result.bottom = lm->LeftBound->Bot.Y; - while (lm != m_MinimaList.end()) - { - //todo - needs fixing for open paths - result.bottom = std::max(result.bottom, lm->LeftBound->Bot.Y); - TEdge* e = lm->LeftBound; - for (;;) { - TEdge* bottomE = e; - while (e->NextInLML) - { - if (e->Bot.X < result.left) result.left = e->Bot.X; - if (e->Bot.X > result.right) result.right = e->Bot.X; - e = e->NextInLML; - } - result.left = std::min(result.left, e->Bot.X); - result.right = std::max(result.right, e->Bot.X); - result.left = std::min(result.left, e->Top.X); - result.right = std::max(result.right, e->Top.X); - result.top = std::min(result.top, e->Top.Y); - if (bottomE == lm->LeftBound) e = lm->RightBound; - else break; - } - ++lm; - } - return result; -} -//------------------------------------------------------------------------------ - -void ClipperBase::InsertScanbeam(const cInt Y) -{ - m_Scanbeam.push(Y); -} -//------------------------------------------------------------------------------ - -bool ClipperBase::PopScanbeam(cInt &Y) -{ - if (m_Scanbeam.empty()) return false; - Y = m_Scanbeam.top(); - m_Scanbeam.pop(); - while (!m_Scanbeam.empty() && Y == m_Scanbeam.top()) { m_Scanbeam.pop(); } // Pop duplicates. - return true; -} -//------------------------------------------------------------------------------ - -void ClipperBase::DisposeAllOutRecs(){ - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - DisposeOutRec(i); - m_PolyOuts.clear(); -} -//------------------------------------------------------------------------------ - -void ClipperBase::DisposeOutRec(PolyOutList::size_type index) -{ - OutRec *outRec = m_PolyOuts[index]; - if (outRec->Pts) DisposeOutPts(outRec->Pts); - delete outRec; - m_PolyOuts[index] = 0; -} -//------------------------------------------------------------------------------ - -void ClipperBase::DeleteFromAEL(TEdge *e) -{ - TEdge* AelPrev = e->PrevInAEL; - TEdge* AelNext = e->NextInAEL; - if (!AelPrev && !AelNext && (e != m_ActiveEdges)) return; //already deleted - if (AelPrev) AelPrev->NextInAEL = AelNext; - else m_ActiveEdges = AelNext; - if (AelNext) AelNext->PrevInAEL = AelPrev; - e->NextInAEL = 0; - e->PrevInAEL = 0; -} -//------------------------------------------------------------------------------ - -OutRec* ClipperBase::CreateOutRec() -{ - OutRec* result = new OutRec; - result->IsHole = false; - result->IsOpen = false; - result->FirstLeft = 0; - result->Pts = 0; - result->BottomPt = 0; - result->PolyNd = 0; - m_PolyOuts.push_back(result); - result->Idx = (int)m_PolyOuts.size() - 1; - return result; -} -//------------------------------------------------------------------------------ - -void ClipperBase::SwapPositionsInAEL(TEdge *Edge1, TEdge *Edge2) -{ - //check that one or other edge hasn't already been removed from AEL ... - if (Edge1->NextInAEL == Edge1->PrevInAEL || - Edge2->NextInAEL == Edge2->PrevInAEL) return; - - if (Edge1->NextInAEL == Edge2) - { - TEdge* Next = Edge2->NextInAEL; - if (Next) Next->PrevInAEL = Edge1; - TEdge* Prev = Edge1->PrevInAEL; - if (Prev) Prev->NextInAEL = Edge2; - Edge2->PrevInAEL = Prev; - Edge2->NextInAEL = Edge1; - Edge1->PrevInAEL = Edge2; - Edge1->NextInAEL = Next; - } - else if (Edge2->NextInAEL == Edge1) - { - TEdge* Next = Edge1->NextInAEL; - if (Next) Next->PrevInAEL = Edge2; - TEdge* Prev = Edge2->PrevInAEL; - if (Prev) Prev->NextInAEL = Edge1; - Edge1->PrevInAEL = Prev; - Edge1->NextInAEL = Edge2; - Edge2->PrevInAEL = Edge1; - Edge2->NextInAEL = Next; - } - else - { - TEdge* Next = Edge1->NextInAEL; - TEdge* Prev = Edge1->PrevInAEL; - Edge1->NextInAEL = Edge2->NextInAEL; - if (Edge1->NextInAEL) Edge1->NextInAEL->PrevInAEL = Edge1; - Edge1->PrevInAEL = Edge2->PrevInAEL; - if (Edge1->PrevInAEL) Edge1->PrevInAEL->NextInAEL = Edge1; - Edge2->NextInAEL = Next; - if (Edge2->NextInAEL) Edge2->NextInAEL->PrevInAEL = Edge2; - Edge2->PrevInAEL = Prev; - if (Edge2->PrevInAEL) Edge2->PrevInAEL->NextInAEL = Edge2; - } - - if (!Edge1->PrevInAEL) m_ActiveEdges = Edge1; - else if (!Edge2->PrevInAEL) m_ActiveEdges = Edge2; -} -//------------------------------------------------------------------------------ - -void ClipperBase::UpdateEdgeIntoAEL(TEdge *&e) -{ - if (!e->NextInLML) - throw clipperException("UpdateEdgeIntoAEL: invalid call"); - - e->NextInLML->OutIdx = e->OutIdx; - TEdge* AelPrev = e->PrevInAEL; - TEdge* AelNext = e->NextInAEL; - if (AelPrev) AelPrev->NextInAEL = e->NextInLML; - else m_ActiveEdges = e->NextInLML; - if (AelNext) AelNext->PrevInAEL = e->NextInLML; - e->NextInLML->Side = e->Side; - e->NextInLML->WindDelta = e->WindDelta; - e->NextInLML->WindCnt = e->WindCnt; - e->NextInLML->WindCnt2 = e->WindCnt2; - e = e->NextInLML; - e->Curr = e->Bot; - e->PrevInAEL = AelPrev; - e->NextInAEL = AelNext; - if (!IsHorizontal(*e)) InsertScanbeam(e->Top.Y); -} -//------------------------------------------------------------------------------ - -bool ClipperBase::LocalMinimaPending() -{ - return (m_CurrentLM != m_MinimaList.end()); -} - -//------------------------------------------------------------------------------ -// TClipper methods ... -//------------------------------------------------------------------------------ - -Clipper::Clipper(int initOptions) : ClipperBase() //constructor -{ - m_ExecuteLocked = false; - m_UseFullRange = false; - m_ReverseOutput = ((initOptions & ioReverseSolution) != 0); - m_StrictSimple = ((initOptions & ioStrictlySimple) != 0); - m_PreserveCollinear = ((initOptions & ioPreserveCollinear) != 0); - m_HasOpenPaths = false; -#ifdef use_xyz - m_ZFill = 0; -#endif -} -//------------------------------------------------------------------------------ - -#ifdef use_xyz -void Clipper::ZFillFunction(ZFillCallback zFillFunc) -{ - m_ZFill = zFillFunc; -} -//------------------------------------------------------------------------------ -#endif - -bool Clipper::Execute(ClipType clipType, Paths &solution, PolyFillType fillType) -{ - return Execute(clipType, solution, fillType, fillType); -} -//------------------------------------------------------------------------------ - -bool Clipper::Execute(ClipType clipType, PolyTree &polytree, PolyFillType fillType) -{ - return Execute(clipType, polytree, fillType, fillType); -} -//------------------------------------------------------------------------------ - -bool Clipper::Execute(ClipType clipType, Paths &solution, - PolyFillType subjFillType, PolyFillType clipFillType) -{ - if( m_ExecuteLocked ) return false; - if (m_HasOpenPaths) - throw clipperException("Error: PolyTree struct is needed for open path clipping."); - m_ExecuteLocked = true; - solution.resize(0); - m_SubjFillType = subjFillType; - m_ClipFillType = clipFillType; - m_ClipType = clipType; - m_UsingPolyTree = false; - bool succeeded = ExecuteInternal(); - if (succeeded) BuildResult(solution); - DisposeAllOutRecs(); - m_ExecuteLocked = false; - return succeeded; -} -//------------------------------------------------------------------------------ - -bool Clipper::Execute(ClipType clipType, PolyTree& polytree, - PolyFillType subjFillType, PolyFillType clipFillType) -{ - if( m_ExecuteLocked ) return false; - m_ExecuteLocked = true; - m_SubjFillType = subjFillType; - m_ClipFillType = clipFillType; - m_ClipType = clipType; - m_UsingPolyTree = true; - bool succeeded = ExecuteInternal(); - if (succeeded) BuildResult2(polytree); - DisposeAllOutRecs(); - m_ExecuteLocked = false; - return succeeded; -} -//------------------------------------------------------------------------------ - -void Clipper::FixHoleLinkage(OutRec &outrec) -{ - //skip OutRecs that (a) contain outermost polygons or - //(b) already have the correct owner/child linkage ... - if (!outrec.FirstLeft || - (outrec.IsHole != outrec.FirstLeft->IsHole && - outrec.FirstLeft->Pts)) return; - - OutRec* orfl = outrec.FirstLeft; - while (orfl && ((orfl->IsHole == outrec.IsHole) || !orfl->Pts)) - orfl = orfl->FirstLeft; - outrec.FirstLeft = orfl; -} -//------------------------------------------------------------------------------ - -bool Clipper::ExecuteInternal() -{ - bool succeeded = true; - try { - Reset(); - m_Maxima = MaximaList(); - m_SortedEdges = 0; - - succeeded = true; - cInt botY, topY; - if (!PopScanbeam(botY)) return false; - InsertLocalMinimaIntoAEL(botY); - while (PopScanbeam(topY) || LocalMinimaPending()) - { - ProcessHorizontals(); - ClearGhostJoins(); - if (!ProcessIntersections(topY)) - { - succeeded = false; - break; - } - ProcessEdgesAtTopOfScanbeam(topY); - botY = topY; - InsertLocalMinimaIntoAEL(botY); - } - } - catch(...) - { - succeeded = false; - } - - if (succeeded) - { - //fix orientations ... - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - { - OutRec *outRec = m_PolyOuts[i]; - if (!outRec->Pts || outRec->IsOpen) continue; - if ((outRec->IsHole ^ m_ReverseOutput) == (Area(*outRec) > 0)) - ReversePolyPtLinks(outRec->Pts); - } - - if (!m_Joins.empty()) JoinCommonEdges(); - - //unfortunately FixupOutPolygon() must be done after JoinCommonEdges() - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - { - OutRec *outRec = m_PolyOuts[i]; - if (!outRec->Pts) continue; - if (outRec->IsOpen) - FixupOutPolyline(*outRec); - else - FixupOutPolygon(*outRec); - } - - if (m_StrictSimple) DoSimplePolygons(); - } - - ClearJoins(); - ClearGhostJoins(); - return succeeded; -} -//------------------------------------------------------------------------------ - -void Clipper::SetWindingCount(TEdge &edge) -{ - TEdge *e = edge.PrevInAEL; - //find the edge of the same polytype that immediately preceeds 'edge' in AEL - while (e && ((e->PolyTyp != edge.PolyTyp) || (e->WindDelta == 0))) e = e->PrevInAEL; - if (!e) - { - if (edge.WindDelta == 0) - { - PolyFillType pft = (edge.PolyTyp == ptSubject ? m_SubjFillType : m_ClipFillType); - edge.WindCnt = (pft == pftNegative ? -1 : 1); - } - else - edge.WindCnt = edge.WindDelta; - edge.WindCnt2 = 0; - e = m_ActiveEdges; //ie get ready to calc WindCnt2 - } - else if (edge.WindDelta == 0 && m_ClipType != ctUnion) - { - edge.WindCnt = 1; - edge.WindCnt2 = e->WindCnt2; - e = e->NextInAEL; //ie get ready to calc WindCnt2 - } - else if (IsEvenOddFillType(edge)) - { - //EvenOdd filling ... - if (edge.WindDelta == 0) - { - //are we inside a subj polygon ... - bool Inside = true; - TEdge *e2 = e->PrevInAEL; - while (e2) - { - if (e2->PolyTyp == e->PolyTyp && e2->WindDelta != 0) - Inside = !Inside; - e2 = e2->PrevInAEL; - } - edge.WindCnt = (Inside ? 0 : 1); - } - else - { - edge.WindCnt = edge.WindDelta; - } - edge.WindCnt2 = e->WindCnt2; - e = e->NextInAEL; //ie get ready to calc WindCnt2 - } - else - { - //nonZero, Positive or Negative filling ... - if (e->WindCnt * e->WindDelta < 0) - { - //prev edge is 'decreasing' WindCount (WC) toward zero - //so we're outside the previous polygon ... - if (Abs(e->WindCnt) > 1) - { - //outside prev poly but still inside another. - //when reversing direction of prev poly use the same WC - if (e->WindDelta * edge.WindDelta < 0) edge.WindCnt = e->WindCnt; - //otherwise continue to 'decrease' WC ... - else edge.WindCnt = e->WindCnt + edge.WindDelta; - } - else - //now outside all polys of same polytype so set own WC ... - edge.WindCnt = (edge.WindDelta == 0 ? 1 : edge.WindDelta); - } else - { - //prev edge is 'increasing' WindCount (WC) away from zero - //so we're inside the previous polygon ... - if (edge.WindDelta == 0) - edge.WindCnt = (e->WindCnt < 0 ? e->WindCnt - 1 : e->WindCnt + 1); - //if wind direction is reversing prev then use same WC - else if (e->WindDelta * edge.WindDelta < 0) edge.WindCnt = e->WindCnt; - //otherwise add to WC ... - else edge.WindCnt = e->WindCnt + edge.WindDelta; - } - edge.WindCnt2 = e->WindCnt2; - e = e->NextInAEL; //ie get ready to calc WindCnt2 - } - - //update WindCnt2 ... - if (IsEvenOddAltFillType(edge)) - { - //EvenOdd filling ... - while (e != &edge) - { - if (e->WindDelta != 0) - edge.WindCnt2 = (edge.WindCnt2 == 0 ? 1 : 0); - e = e->NextInAEL; - } - } else - { - //nonZero, Positive or Negative filling ... - while ( e != &edge ) - { - edge.WindCnt2 += e->WindDelta; - e = e->NextInAEL; - } - } -} -//------------------------------------------------------------------------------ - -bool Clipper::IsEvenOddFillType(const TEdge& edge) const -{ - if (edge.PolyTyp == ptSubject) - return m_SubjFillType == pftEvenOdd; else - return m_ClipFillType == pftEvenOdd; -} -//------------------------------------------------------------------------------ - -bool Clipper::IsEvenOddAltFillType(const TEdge& edge) const -{ - if (edge.PolyTyp == ptSubject) - return m_ClipFillType == pftEvenOdd; else - return m_SubjFillType == pftEvenOdd; -} -//------------------------------------------------------------------------------ - -bool Clipper::IsContributing(const TEdge& edge) const -{ - PolyFillType pft, pft2; - if (edge.PolyTyp == ptSubject) - { - pft = m_SubjFillType; - pft2 = m_ClipFillType; - } else - { - pft = m_ClipFillType; - pft2 = m_SubjFillType; - } - - switch(pft) - { - case pftEvenOdd: - //return false if a subj line has been flagged as inside a subj polygon - if (edge.WindDelta == 0 && edge.WindCnt != 1) return false; - break; - case pftNonZero: - if (Abs(edge.WindCnt) != 1) return false; - break; - case pftPositive: - if (edge.WindCnt != 1) return false; - break; - default: //pftNegative - if (edge.WindCnt != -1) return false; - } - - switch(m_ClipType) - { - case ctIntersection: - switch(pft2) - { - case pftEvenOdd: - case pftNonZero: - return (edge.WindCnt2 != 0); - case pftPositive: - return (edge.WindCnt2 > 0); - default: - return (edge.WindCnt2 < 0); - } - break; - case ctUnion: - switch(pft2) - { - case pftEvenOdd: - case pftNonZero: - return (edge.WindCnt2 == 0); - case pftPositive: - return (edge.WindCnt2 <= 0); - default: - return (edge.WindCnt2 >= 0); - } - break; - case ctDifference: - if (edge.PolyTyp == ptSubject) - switch(pft2) - { - case pftEvenOdd: - case pftNonZero: - return (edge.WindCnt2 == 0); - case pftPositive: - return (edge.WindCnt2 <= 0); - default: - return (edge.WindCnt2 >= 0); - } - else - switch(pft2) - { - case pftEvenOdd: - case pftNonZero: - return (edge.WindCnt2 != 0); - case pftPositive: - return (edge.WindCnt2 > 0); - default: - return (edge.WindCnt2 < 0); - } - break; - case ctXor: - if (edge.WindDelta == 0) //XOr always contributing unless open - switch(pft2) - { - case pftEvenOdd: - case pftNonZero: - return (edge.WindCnt2 == 0); - case pftPositive: - return (edge.WindCnt2 <= 0); - default: - return (edge.WindCnt2 >= 0); - } - else - return true; - break; - default: - return true; - } -} -//------------------------------------------------------------------------------ - -OutPt* Clipper::AddLocalMinPoly(TEdge *e1, TEdge *e2, const IntPoint &Pt) -{ - OutPt* result; - TEdge *e, *prevE; - if (IsHorizontal(*e2) || ( e1->Dx > e2->Dx )) - { - result = AddOutPt(e1, Pt); - e2->OutIdx = e1->OutIdx; - e1->Side = esLeft; - e2->Side = esRight; - e = e1; - if (e->PrevInAEL == e2) - prevE = e2->PrevInAEL; - else - prevE = e->PrevInAEL; - } else - { - result = AddOutPt(e2, Pt); - e1->OutIdx = e2->OutIdx; - e1->Side = esRight; - e2->Side = esLeft; - e = e2; - if (e->PrevInAEL == e1) - prevE = e1->PrevInAEL; - else - prevE = e->PrevInAEL; - } - - if (prevE && prevE->OutIdx >= 0 && prevE->Top.Y < Pt.Y && e->Top.Y < Pt.Y) - { - cInt xPrev = TopX(*prevE, Pt.Y); - cInt xE = TopX(*e, Pt.Y); - if (xPrev == xE && (e->WindDelta != 0) && (prevE->WindDelta != 0) && - SlopesEqual(IntPoint(xPrev, Pt.Y), prevE->Top, IntPoint(xE, Pt.Y), e->Top, m_UseFullRange)) - { - OutPt* outPt = AddOutPt(prevE, Pt); - AddJoin(result, outPt, e->Top); - } - } - return result; -} -//------------------------------------------------------------------------------ - -void Clipper::AddLocalMaxPoly(TEdge *e1, TEdge *e2, const IntPoint &Pt) -{ - AddOutPt( e1, Pt ); - if (e2->WindDelta == 0) AddOutPt(e2, Pt); - if( e1->OutIdx == e2->OutIdx ) - { - e1->OutIdx = Unassigned; - e2->OutIdx = Unassigned; - } - else if (e1->OutIdx < e2->OutIdx) - AppendPolygon(e1, e2); - else - AppendPolygon(e2, e1); -} -//------------------------------------------------------------------------------ - -void Clipper::AddEdgeToSEL(TEdge *edge) -{ - //SEL pointers in PEdge are reused to build a list of horizontal edges. - //However, we don't need to worry about order with horizontal edge processing. - if( !m_SortedEdges ) - { - m_SortedEdges = edge; - edge->PrevInSEL = 0; - edge->NextInSEL = 0; - } - else - { - edge->NextInSEL = m_SortedEdges; - edge->PrevInSEL = 0; - m_SortedEdges->PrevInSEL = edge; - m_SortedEdges = edge; - } -} -//------------------------------------------------------------------------------ - -bool Clipper::PopEdgeFromSEL(TEdge *&edge) -{ - if (!m_SortedEdges) return false; - edge = m_SortedEdges; - DeleteFromSEL(m_SortedEdges); - return true; -} -//------------------------------------------------------------------------------ - -void Clipper::CopyAELToSEL() -{ - TEdge* e = m_ActiveEdges; - m_SortedEdges = e; - while ( e ) - { - e->PrevInSEL = e->PrevInAEL; - e->NextInSEL = e->NextInAEL; - e = e->NextInAEL; - } -} -//------------------------------------------------------------------------------ - -void Clipper::AddJoin(OutPt *op1, OutPt *op2, const IntPoint OffPt) -{ - Join* j = new Join; - j->OutPt1 = op1; - j->OutPt2 = op2; - j->OffPt = OffPt; - m_Joins.push_back(j); -} -//------------------------------------------------------------------------------ - -void Clipper::ClearJoins() -{ - for (JoinList::size_type i = 0; i < m_Joins.size(); i++) - delete m_Joins[i]; - m_Joins.resize(0); -} -//------------------------------------------------------------------------------ - -void Clipper::ClearGhostJoins() -{ - for (JoinList::size_type i = 0; i < m_GhostJoins.size(); i++) - delete m_GhostJoins[i]; - m_GhostJoins.resize(0); -} -//------------------------------------------------------------------------------ - -void Clipper::AddGhostJoin(OutPt *op, const IntPoint OffPt) -{ - Join* j = new Join; - j->OutPt1 = op; - j->OutPt2 = 0; - j->OffPt = OffPt; - m_GhostJoins.push_back(j); -} -//------------------------------------------------------------------------------ - -void Clipper::InsertLocalMinimaIntoAEL(const cInt botY) -{ - const LocalMinimum *lm; - while (PopLocalMinima(botY, lm)) - { - TEdge* lb = lm->LeftBound; - TEdge* rb = lm->RightBound; - - OutPt *Op1 = 0; - if (!lb) - { - //nb: don't insert LB into either AEL or SEL - InsertEdgeIntoAEL(rb, 0); - SetWindingCount(*rb); - if (IsContributing(*rb)) - Op1 = AddOutPt(rb, rb->Bot); - } - else if (!rb) - { - InsertEdgeIntoAEL(lb, 0); - SetWindingCount(*lb); - if (IsContributing(*lb)) - Op1 = AddOutPt(lb, lb->Bot); - InsertScanbeam(lb->Top.Y); - } - else - { - InsertEdgeIntoAEL(lb, 0); - InsertEdgeIntoAEL(rb, lb); - SetWindingCount( *lb ); - rb->WindCnt = lb->WindCnt; - rb->WindCnt2 = lb->WindCnt2; - if (IsContributing(*lb)) - Op1 = AddLocalMinPoly(lb, rb, lb->Bot); - InsertScanbeam(lb->Top.Y); - } - - if (rb) - { - if (IsHorizontal(*rb)) - { - AddEdgeToSEL(rb); - if (rb->NextInLML) - InsertScanbeam(rb->NextInLML->Top.Y); - } - else InsertScanbeam( rb->Top.Y ); - } - - if (!lb || !rb) continue; - - //if any output polygons share an edge, they'll need joining later ... - if (Op1 && IsHorizontal(*rb) && - m_GhostJoins.size() > 0 && (rb->WindDelta != 0)) - { - for (JoinList::size_type i = 0; i < m_GhostJoins.size(); ++i) - { - Join* jr = m_GhostJoins[i]; - //if the horizontal Rb and a 'ghost' horizontal overlap, then convert - //the 'ghost' join to a real join ready for later ... - if (HorzSegmentsOverlap(jr->OutPt1->Pt.X, jr->OffPt.X, rb->Bot.X, rb->Top.X)) - AddJoin(jr->OutPt1, Op1, jr->OffPt); - } - } - - if (lb->OutIdx >= 0 && lb->PrevInAEL && - lb->PrevInAEL->Curr.X == lb->Bot.X && - lb->PrevInAEL->OutIdx >= 0 && - SlopesEqual(lb->PrevInAEL->Bot, lb->PrevInAEL->Top, lb->Curr, lb->Top, m_UseFullRange) && - (lb->WindDelta != 0) && (lb->PrevInAEL->WindDelta != 0)) - { - OutPt *Op2 = AddOutPt(lb->PrevInAEL, lb->Bot); - AddJoin(Op1, Op2, lb->Top); - } - - if(lb->NextInAEL != rb) - { - - if (rb->OutIdx >= 0 && rb->PrevInAEL->OutIdx >= 0 && - SlopesEqual(rb->PrevInAEL->Curr, rb->PrevInAEL->Top, rb->Curr, rb->Top, m_UseFullRange) && - (rb->WindDelta != 0) && (rb->PrevInAEL->WindDelta != 0)) - { - OutPt *Op2 = AddOutPt(rb->PrevInAEL, rb->Bot); - AddJoin(Op1, Op2, rb->Top); - } - - TEdge* e = lb->NextInAEL; - if (e) - { - while( e != rb ) - { - //nb: For calculating winding counts etc, IntersectEdges() assumes - //that param1 will be to the Right of param2 ABOVE the intersection ... - IntersectEdges(rb , e , lb->Curr); //order important here - e = e->NextInAEL; - } - } - } - - } -} -//------------------------------------------------------------------------------ - -void Clipper::DeleteFromSEL(TEdge *e) -{ - TEdge* SelPrev = e->PrevInSEL; - TEdge* SelNext = e->NextInSEL; - if( !SelPrev && !SelNext && (e != m_SortedEdges) ) return; //already deleted - if( SelPrev ) SelPrev->NextInSEL = SelNext; - else m_SortedEdges = SelNext; - if( SelNext ) SelNext->PrevInSEL = SelPrev; - e->NextInSEL = 0; - e->PrevInSEL = 0; -} -//------------------------------------------------------------------------------ - -#ifdef use_xyz -void Clipper::SetZ(IntPoint& pt, TEdge& e1, TEdge& e2) -{ - if (pt.Z != 0 || !m_ZFill) return; - else if (pt == e1.Bot) pt.Z = e1.Bot.Z; - else if (pt == e1.Top) pt.Z = e1.Top.Z; - else if (pt == e2.Bot) pt.Z = e2.Bot.Z; - else if (pt == e2.Top) pt.Z = e2.Top.Z; - else (*m_ZFill)(e1.Bot, e1.Top, e2.Bot, e2.Top, pt); -} -//------------------------------------------------------------------------------ -#endif - -void Clipper::IntersectEdges(TEdge *e1, TEdge *e2, IntPoint &Pt) -{ - bool e1Contributing = ( e1->OutIdx >= 0 ); - bool e2Contributing = ( e2->OutIdx >= 0 ); - -#ifdef use_xyz - SetZ(Pt, *e1, *e2); -#endif - -#ifdef use_lines - //if either edge is on an OPEN path ... - if (e1->WindDelta == 0 || e2->WindDelta == 0) - { - //ignore subject-subject open path intersections UNLESS they - //are both open paths, AND they are both 'contributing maximas' ... - if (e1->WindDelta == 0 && e2->WindDelta == 0) return; - - //if intersecting a subj line with a subj poly ... - else if (e1->PolyTyp == e2->PolyTyp && - e1->WindDelta != e2->WindDelta && m_ClipType == ctUnion) - { - if (e1->WindDelta == 0) - { - if (e2Contributing) - { - AddOutPt(e1, Pt); - if (e1Contributing) e1->OutIdx = Unassigned; - } - } - else - { - if (e1Contributing) - { - AddOutPt(e2, Pt); - if (e2Contributing) e2->OutIdx = Unassigned; - } - } - } - else if (e1->PolyTyp != e2->PolyTyp) - { - //toggle subj open path OutIdx on/off when Abs(clip.WndCnt) == 1 ... - if ((e1->WindDelta == 0) && abs(e2->WindCnt) == 1 && - (m_ClipType != ctUnion || e2->WindCnt2 == 0)) - { - AddOutPt(e1, Pt); - if (e1Contributing) e1->OutIdx = Unassigned; - } - else if ((e2->WindDelta == 0) && (abs(e1->WindCnt) == 1) && - (m_ClipType != ctUnion || e1->WindCnt2 == 0)) - { - AddOutPt(e2, Pt); - if (e2Contributing) e2->OutIdx = Unassigned; - } - } - return; - } -#endif - - //update winding counts... - //assumes that e1 will be to the Right of e2 ABOVE the intersection - if ( e1->PolyTyp == e2->PolyTyp ) - { - if ( IsEvenOddFillType( *e1) ) - { - int oldE1WindCnt = e1->WindCnt; - e1->WindCnt = e2->WindCnt; - e2->WindCnt = oldE1WindCnt; - } else - { - if (e1->WindCnt + e2->WindDelta == 0 ) e1->WindCnt = -e1->WindCnt; - else e1->WindCnt += e2->WindDelta; - if ( e2->WindCnt - e1->WindDelta == 0 ) e2->WindCnt = -e2->WindCnt; - else e2->WindCnt -= e1->WindDelta; - } - } else - { - if (!IsEvenOddFillType(*e2)) e1->WindCnt2 += e2->WindDelta; - else e1->WindCnt2 = ( e1->WindCnt2 == 0 ) ? 1 : 0; - if (!IsEvenOddFillType(*e1)) e2->WindCnt2 -= e1->WindDelta; - else e2->WindCnt2 = ( e2->WindCnt2 == 0 ) ? 1 : 0; - } - - PolyFillType e1FillType, e2FillType, e1FillType2, e2FillType2; - if (e1->PolyTyp == ptSubject) - { - e1FillType = m_SubjFillType; - e1FillType2 = m_ClipFillType; - } else - { - e1FillType = m_ClipFillType; - e1FillType2 = m_SubjFillType; - } - if (e2->PolyTyp == ptSubject) - { - e2FillType = m_SubjFillType; - e2FillType2 = m_ClipFillType; - } else - { - e2FillType = m_ClipFillType; - e2FillType2 = m_SubjFillType; - } - - cInt e1Wc, e2Wc; - switch (e1FillType) - { - case pftPositive: e1Wc = e1->WindCnt; break; - case pftNegative: e1Wc = -e1->WindCnt; break; - default: e1Wc = Abs(e1->WindCnt); - } - switch(e2FillType) - { - case pftPositive: e2Wc = e2->WindCnt; break; - case pftNegative: e2Wc = -e2->WindCnt; break; - default: e2Wc = Abs(e2->WindCnt); - } - - if ( e1Contributing && e2Contributing ) - { - if ((e1Wc != 0 && e1Wc != 1) || (e2Wc != 0 && e2Wc != 1) || - (e1->PolyTyp != e2->PolyTyp && m_ClipType != ctXor) ) - { - AddLocalMaxPoly(e1, e2, Pt); - } - else - { - AddOutPt(e1, Pt); - AddOutPt(e2, Pt); - SwapSides( *e1 , *e2 ); - SwapPolyIndexes( *e1 , *e2 ); - } - } - else if ( e1Contributing ) - { - if (e2Wc == 0 || e2Wc == 1) - { - AddOutPt(e1, Pt); - SwapSides(*e1, *e2); - SwapPolyIndexes(*e1, *e2); - } - } - else if ( e2Contributing ) - { - if (e1Wc == 0 || e1Wc == 1) - { - AddOutPt(e2, Pt); - SwapSides(*e1, *e2); - SwapPolyIndexes(*e1, *e2); - } - } - else if ( (e1Wc == 0 || e1Wc == 1) && (e2Wc == 0 || e2Wc == 1)) - { - //neither edge is currently contributing ... - - cInt e1Wc2, e2Wc2; - switch (e1FillType2) - { - case pftPositive: e1Wc2 = e1->WindCnt2; break; - case pftNegative : e1Wc2 = -e1->WindCnt2; break; - default: e1Wc2 = Abs(e1->WindCnt2); - } - switch (e2FillType2) - { - case pftPositive: e2Wc2 = e2->WindCnt2; break; - case pftNegative: e2Wc2 = -e2->WindCnt2; break; - default: e2Wc2 = Abs(e2->WindCnt2); - } - - if (e1->PolyTyp != e2->PolyTyp) - { - AddLocalMinPoly(e1, e2, Pt); - } - else if (e1Wc == 1 && e2Wc == 1) - switch( m_ClipType ) { - case ctIntersection: - if (e1Wc2 > 0 && e2Wc2 > 0) - AddLocalMinPoly(e1, e2, Pt); - break; - case ctUnion: - if ( e1Wc2 <= 0 && e2Wc2 <= 0 ) - AddLocalMinPoly(e1, e2, Pt); - break; - case ctDifference: - if (((e1->PolyTyp == ptClip) && (e1Wc2 > 0) && (e2Wc2 > 0)) || - ((e1->PolyTyp == ptSubject) && (e1Wc2 <= 0) && (e2Wc2 <= 0))) - AddLocalMinPoly(e1, e2, Pt); - break; - case ctXor: - AddLocalMinPoly(e1, e2, Pt); - } - else - SwapSides( *e1, *e2 ); - } -} -//------------------------------------------------------------------------------ - -void Clipper::SetHoleState(TEdge *e, OutRec *outrec) -{ - TEdge *e2 = e->PrevInAEL; - TEdge *eTmp = 0; - while (e2) - { - if (e2->OutIdx >= 0 && e2->WindDelta != 0) - { - if (!eTmp) eTmp = e2; - else if (eTmp->OutIdx == e2->OutIdx) eTmp = 0; - } - e2 = e2->PrevInAEL; - } - if (!eTmp) - { - outrec->FirstLeft = 0; - outrec->IsHole = false; - } - else - { - outrec->FirstLeft = m_PolyOuts[eTmp->OutIdx]; - outrec->IsHole = !outrec->FirstLeft->IsHole; - } -} -//------------------------------------------------------------------------------ - -OutRec* GetLowermostRec(OutRec *outRec1, OutRec *outRec2) -{ - //work out which polygon fragment has the correct hole state ... - if (!outRec1->BottomPt) - outRec1->BottomPt = GetBottomPt(outRec1->Pts); - if (!outRec2->BottomPt) - outRec2->BottomPt = GetBottomPt(outRec2->Pts); - OutPt *OutPt1 = outRec1->BottomPt; - OutPt *OutPt2 = outRec2->BottomPt; - if (OutPt1->Pt.Y > OutPt2->Pt.Y) return outRec1; - else if (OutPt1->Pt.Y < OutPt2->Pt.Y) return outRec2; - else if (OutPt1->Pt.X < OutPt2->Pt.X) return outRec1; - else if (OutPt1->Pt.X > OutPt2->Pt.X) return outRec2; - else if (OutPt1->Next == OutPt1) return outRec2; - else if (OutPt2->Next == OutPt2) return outRec1; - else if (FirstIsBottomPt(OutPt1, OutPt2)) return outRec1; - else return outRec2; -} -//------------------------------------------------------------------------------ - -bool OutRec1RightOfOutRec2(OutRec* outRec1, OutRec* outRec2) -{ - do - { - outRec1 = outRec1->FirstLeft; - if (outRec1 == outRec2) return true; - } while (outRec1); - return false; -} -//------------------------------------------------------------------------------ - -OutRec* Clipper::GetOutRec(int Idx) -{ - OutRec* outrec = m_PolyOuts[Idx]; - while (outrec != m_PolyOuts[outrec->Idx]) - outrec = m_PolyOuts[outrec->Idx]; - return outrec; -} -//------------------------------------------------------------------------------ - -void Clipper::AppendPolygon(TEdge *e1, TEdge *e2) -{ - //get the start and ends of both output polygons ... - OutRec *outRec1 = m_PolyOuts[e1->OutIdx]; - OutRec *outRec2 = m_PolyOuts[e2->OutIdx]; - - OutRec *holeStateRec; - if (OutRec1RightOfOutRec2(outRec1, outRec2)) - holeStateRec = outRec2; - else if (OutRec1RightOfOutRec2(outRec2, outRec1)) - holeStateRec = outRec1; - else - holeStateRec = GetLowermostRec(outRec1, outRec2); - - //get the start and ends of both output polygons and - //join e2 poly onto e1 poly and delete pointers to e2 ... - - OutPt* p1_lft = outRec1->Pts; - OutPt* p1_rt = p1_lft->Prev; - OutPt* p2_lft = outRec2->Pts; - OutPt* p2_rt = p2_lft->Prev; - - //join e2 poly onto e1 poly and delete pointers to e2 ... - if( e1->Side == esLeft ) - { - if( e2->Side == esLeft ) - { - //z y x a b c - ReversePolyPtLinks(p2_lft); - p2_lft->Next = p1_lft; - p1_lft->Prev = p2_lft; - p1_rt->Next = p2_rt; - p2_rt->Prev = p1_rt; - outRec1->Pts = p2_rt; - } else - { - //x y z a b c - p2_rt->Next = p1_lft; - p1_lft->Prev = p2_rt; - p2_lft->Prev = p1_rt; - p1_rt->Next = p2_lft; - outRec1->Pts = p2_lft; - } - } else - { - if( e2->Side == esRight ) - { - //a b c z y x - ReversePolyPtLinks(p2_lft); - p1_rt->Next = p2_rt; - p2_rt->Prev = p1_rt; - p2_lft->Next = p1_lft; - p1_lft->Prev = p2_lft; - } else - { - //a b c x y z - p1_rt->Next = p2_lft; - p2_lft->Prev = p1_rt; - p1_lft->Prev = p2_rt; - p2_rt->Next = p1_lft; - } - } - - outRec1->BottomPt = 0; - if (holeStateRec == outRec2) - { - if (outRec2->FirstLeft != outRec1) - outRec1->FirstLeft = outRec2->FirstLeft; - outRec1->IsHole = outRec2->IsHole; - } - outRec2->Pts = 0; - outRec2->BottomPt = 0; - outRec2->FirstLeft = outRec1; - - int OKIdx = e1->OutIdx; - int ObsoleteIdx = e2->OutIdx; - - e1->OutIdx = Unassigned; //nb: safe because we only get here via AddLocalMaxPoly - e2->OutIdx = Unassigned; - - TEdge* e = m_ActiveEdges; - while( e ) - { - if( e->OutIdx == ObsoleteIdx ) - { - e->OutIdx = OKIdx; - e->Side = e1->Side; - break; - } - e = e->NextInAEL; - } - - outRec2->Idx = outRec1->Idx; -} -//------------------------------------------------------------------------------ - -OutPt* Clipper::AddOutPt(TEdge *e, const IntPoint &pt) -{ - if( e->OutIdx < 0 ) - { - OutRec *outRec = CreateOutRec(); - outRec->IsOpen = (e->WindDelta == 0); - OutPt* newOp = new OutPt; - outRec->Pts = newOp; - newOp->Idx = outRec->Idx; - newOp->Pt = pt; - newOp->Next = newOp; - newOp->Prev = newOp; - if (!outRec->IsOpen) - SetHoleState(e, outRec); - e->OutIdx = outRec->Idx; - return newOp; - } else - { - OutRec *outRec = m_PolyOuts[e->OutIdx]; - //OutRec.Pts is the 'Left-most' point & OutRec.Pts.Prev is the 'Right-most' - OutPt* op = outRec->Pts; - - bool ToFront = (e->Side == esLeft); - if (ToFront && (pt == op->Pt)) return op; - else if (!ToFront && (pt == op->Prev->Pt)) return op->Prev; - - OutPt* newOp = new OutPt; - newOp->Idx = outRec->Idx; - newOp->Pt = pt; - newOp->Next = op; - newOp->Prev = op->Prev; - newOp->Prev->Next = newOp; - op->Prev = newOp; - if (ToFront) outRec->Pts = newOp; - return newOp; - } -} -//------------------------------------------------------------------------------ - -OutPt* Clipper::GetLastOutPt(TEdge *e) -{ - OutRec *outRec = m_PolyOuts[e->OutIdx]; - if (e->Side == esLeft) - return outRec->Pts; - else - return outRec->Pts->Prev; -} -//------------------------------------------------------------------------------ - -void Clipper::ProcessHorizontals() -{ - TEdge* horzEdge; - while (PopEdgeFromSEL(horzEdge)) - ProcessHorizontal(horzEdge); -} -//------------------------------------------------------------------------------ - -inline bool IsMinima(TEdge *e) -{ - return e && (e->Prev->NextInLML != e) && (e->Next->NextInLML != e); -} -//------------------------------------------------------------------------------ - -inline bool IsMaxima(TEdge *e, const cInt Y) -{ - return e && e->Top.Y == Y && !e->NextInLML; -} -//------------------------------------------------------------------------------ - -inline bool IsIntermediate(TEdge *e, const cInt Y) -{ - return e->Top.Y == Y && e->NextInLML; -} -//------------------------------------------------------------------------------ - -TEdge *GetMaximaPair(TEdge *e) -{ - if ((e->Next->Top == e->Top) && !e->Next->NextInLML) - return e->Next; - else if ((e->Prev->Top == e->Top) && !e->Prev->NextInLML) - return e->Prev; - else return 0; -} -//------------------------------------------------------------------------------ - -TEdge *GetMaximaPairEx(TEdge *e) -{ - //as GetMaximaPair() but returns 0 if MaxPair isn't in AEL (unless it's horizontal) - TEdge* result = GetMaximaPair(e); - if (result && (result->OutIdx == Skip || - (result->NextInAEL == result->PrevInAEL && !IsHorizontal(*result)))) return 0; - return result; -} -//------------------------------------------------------------------------------ - -void Clipper::SwapPositionsInSEL(TEdge *Edge1, TEdge *Edge2) -{ - if( !( Edge1->NextInSEL ) && !( Edge1->PrevInSEL ) ) return; - if( !( Edge2->NextInSEL ) && !( Edge2->PrevInSEL ) ) return; - - if( Edge1->NextInSEL == Edge2 ) - { - TEdge* Next = Edge2->NextInSEL; - if( Next ) Next->PrevInSEL = Edge1; - TEdge* Prev = Edge1->PrevInSEL; - if( Prev ) Prev->NextInSEL = Edge2; - Edge2->PrevInSEL = Prev; - Edge2->NextInSEL = Edge1; - Edge1->PrevInSEL = Edge2; - Edge1->NextInSEL = Next; - } - else if( Edge2->NextInSEL == Edge1 ) - { - TEdge* Next = Edge1->NextInSEL; - if( Next ) Next->PrevInSEL = Edge2; - TEdge* Prev = Edge2->PrevInSEL; - if( Prev ) Prev->NextInSEL = Edge1; - Edge1->PrevInSEL = Prev; - Edge1->NextInSEL = Edge2; - Edge2->PrevInSEL = Edge1; - Edge2->NextInSEL = Next; - } - else - { - TEdge* Next = Edge1->NextInSEL; - TEdge* Prev = Edge1->PrevInSEL; - Edge1->NextInSEL = Edge2->NextInSEL; - if( Edge1->NextInSEL ) Edge1->NextInSEL->PrevInSEL = Edge1; - Edge1->PrevInSEL = Edge2->PrevInSEL; - if( Edge1->PrevInSEL ) Edge1->PrevInSEL->NextInSEL = Edge1; - Edge2->NextInSEL = Next; - if( Edge2->NextInSEL ) Edge2->NextInSEL->PrevInSEL = Edge2; - Edge2->PrevInSEL = Prev; - if( Edge2->PrevInSEL ) Edge2->PrevInSEL->NextInSEL = Edge2; - } - - if( !Edge1->PrevInSEL ) m_SortedEdges = Edge1; - else if( !Edge2->PrevInSEL ) m_SortedEdges = Edge2; -} -//------------------------------------------------------------------------------ - -TEdge* GetNextInAEL(TEdge *e, Direction dir) -{ - return dir == dLeftToRight ? e->NextInAEL : e->PrevInAEL; -} -//------------------------------------------------------------------------------ - -void GetHorzDirection(TEdge& HorzEdge, Direction& Dir, cInt& Left, cInt& Right) -{ - if (HorzEdge.Bot.X < HorzEdge.Top.X) - { - Left = HorzEdge.Bot.X; - Right = HorzEdge.Top.X; - Dir = dLeftToRight; - } else - { - Left = HorzEdge.Top.X; - Right = HorzEdge.Bot.X; - Dir = dRightToLeft; - } -} -//------------------------------------------------------------------------ - -/******************************************************************************* -* Notes: Horizontal edges (HEs) at scanline intersections (ie at the Top or * -* Bottom of a scanbeam) are processed as if layered. The order in which HEs * -* are processed doesn't matter. HEs intersect with other HE Bot.Xs only [#] * -* (or they could intersect with Top.Xs only, ie EITHER Bot.Xs OR Top.Xs), * -* and with other non-horizontal edges [*]. Once these intersections are * -* processed, intermediate HEs then 'promote' the Edge above (NextInLML) into * -* the AEL. These 'promoted' edges may in turn intersect [%] with other HEs. * -*******************************************************************************/ - -void Clipper::ProcessHorizontal(TEdge *horzEdge) -{ - Direction dir; - cInt horzLeft, horzRight; - bool IsOpen = (horzEdge->WindDelta == 0); - - GetHorzDirection(*horzEdge, dir, horzLeft, horzRight); - - TEdge* eLastHorz = horzEdge, *eMaxPair = 0; - while (eLastHorz->NextInLML && IsHorizontal(*eLastHorz->NextInLML)) - eLastHorz = eLastHorz->NextInLML; - if (!eLastHorz->NextInLML) - eMaxPair = GetMaximaPair(eLastHorz); - - MaximaList::const_iterator maxIt; - MaximaList::const_reverse_iterator maxRit; - if (m_Maxima.size() > 0) - { - //get the first maxima in range (X) ... - if (dir == dLeftToRight) - { - maxIt = m_Maxima.begin(); - while (maxIt != m_Maxima.end() && *maxIt <= horzEdge->Bot.X) maxIt++; - if (maxIt != m_Maxima.end() && *maxIt >= eLastHorz->Top.X) - maxIt = m_Maxima.end(); - } - else - { - maxRit = m_Maxima.rbegin(); - while (maxRit != m_Maxima.rend() && *maxRit > horzEdge->Bot.X) maxRit++; - if (maxRit != m_Maxima.rend() && *maxRit <= eLastHorz->Top.X) - maxRit = m_Maxima.rend(); - } - } - - OutPt* op1 = 0; - - for (;;) //loop through consec. horizontal edges - { - - bool IsLastHorz = (horzEdge == eLastHorz); - TEdge* e = GetNextInAEL(horzEdge, dir); - while(e) - { - - //this code block inserts extra coords into horizontal edges (in output - //polygons) whereever maxima touch these horizontal edges. This helps - //'simplifying' polygons (ie if the Simplify property is set). - if (m_Maxima.size() > 0) - { - if (dir == dLeftToRight) - { - while (maxIt != m_Maxima.end() && *maxIt < e->Curr.X) - { - if (horzEdge->OutIdx >= 0 && !IsOpen) - AddOutPt(horzEdge, IntPoint(*maxIt, horzEdge->Bot.Y)); - maxIt++; - } - } - else - { - while (maxRit != m_Maxima.rend() && *maxRit > e->Curr.X) - { - if (horzEdge->OutIdx >= 0 && !IsOpen) - AddOutPt(horzEdge, IntPoint(*maxRit, horzEdge->Bot.Y)); - maxRit++; - } - } - }; - - if ((dir == dLeftToRight && e->Curr.X > horzRight) || - (dir == dRightToLeft && e->Curr.X < horzLeft)) break; - - //Also break if we've got to the end of an intermediate horizontal edge ... - //nb: Smaller Dx's are to the right of larger Dx's ABOVE the horizontal. - if (e->Curr.X == horzEdge->Top.X && horzEdge->NextInLML && - e->Dx < horzEdge->NextInLML->Dx) break; - - if (horzEdge->OutIdx >= 0 && !IsOpen) //note: may be done multiple times - { -#ifdef use_xyz - if (dir == dLeftToRight) SetZ(e->Curr, *horzEdge, *e); - else SetZ(e->Curr, *e, *horzEdge); -#endif - op1 = AddOutPt(horzEdge, e->Curr); - TEdge* eNextHorz = m_SortedEdges; - while (eNextHorz) - { - if (eNextHorz->OutIdx >= 0 && - HorzSegmentsOverlap(horzEdge->Bot.X, - horzEdge->Top.X, eNextHorz->Bot.X, eNextHorz->Top.X)) - { - OutPt* op2 = GetLastOutPt(eNextHorz); - AddJoin(op2, op1, eNextHorz->Top); - } - eNextHorz = eNextHorz->NextInSEL; - } - AddGhostJoin(op1, horzEdge->Bot); - } - - //OK, so far we're still in range of the horizontal Edge but make sure - //we're at the last of consec. horizontals when matching with eMaxPair - if(e == eMaxPair && IsLastHorz) - { - if (horzEdge->OutIdx >= 0) - AddLocalMaxPoly(horzEdge, eMaxPair, horzEdge->Top); - DeleteFromAEL(horzEdge); - DeleteFromAEL(eMaxPair); - return; - } - - if(dir == dLeftToRight) - { - IntPoint Pt = IntPoint(e->Curr.X, horzEdge->Curr.Y); - IntersectEdges(horzEdge, e, Pt); - } - else - { - IntPoint Pt = IntPoint(e->Curr.X, horzEdge->Curr.Y); - IntersectEdges( e, horzEdge, Pt); - } - TEdge* eNext = GetNextInAEL(e, dir); - SwapPositionsInAEL( horzEdge, e ); - e = eNext; - } //end while(e) - - //Break out of loop if HorzEdge.NextInLML is not also horizontal ... - if (!horzEdge->NextInLML || !IsHorizontal(*horzEdge->NextInLML)) break; - - UpdateEdgeIntoAEL(horzEdge); - if (horzEdge->OutIdx >= 0) AddOutPt(horzEdge, horzEdge->Bot); - GetHorzDirection(*horzEdge, dir, horzLeft, horzRight); - - } //end for (;;) - - if (horzEdge->OutIdx >= 0 && !op1) - { - op1 = GetLastOutPt(horzEdge); - TEdge* eNextHorz = m_SortedEdges; - while (eNextHorz) - { - if (eNextHorz->OutIdx >= 0 && - HorzSegmentsOverlap(horzEdge->Bot.X, - horzEdge->Top.X, eNextHorz->Bot.X, eNextHorz->Top.X)) - { - OutPt* op2 = GetLastOutPt(eNextHorz); - AddJoin(op2, op1, eNextHorz->Top); - } - eNextHorz = eNextHorz->NextInSEL; - } - AddGhostJoin(op1, horzEdge->Top); - } - - if (horzEdge->NextInLML) - { - if(horzEdge->OutIdx >= 0) - { - op1 = AddOutPt( horzEdge, horzEdge->Top); - UpdateEdgeIntoAEL(horzEdge); - if (horzEdge->WindDelta == 0) return; - //nb: HorzEdge is no longer horizontal here - TEdge* ePrev = horzEdge->PrevInAEL; - TEdge* eNext = horzEdge->NextInAEL; - if (ePrev && ePrev->Curr.X == horzEdge->Bot.X && - ePrev->Curr.Y == horzEdge->Bot.Y && ePrev->WindDelta != 0 && - (ePrev->OutIdx >= 0 && ePrev->Curr.Y > ePrev->Top.Y && - SlopesEqual(*horzEdge, *ePrev, m_UseFullRange))) - { - OutPt* op2 = AddOutPt(ePrev, horzEdge->Bot); - AddJoin(op1, op2, horzEdge->Top); - } - else if (eNext && eNext->Curr.X == horzEdge->Bot.X && - eNext->Curr.Y == horzEdge->Bot.Y && eNext->WindDelta != 0 && - eNext->OutIdx >= 0 && eNext->Curr.Y > eNext->Top.Y && - SlopesEqual(*horzEdge, *eNext, m_UseFullRange)) - { - OutPt* op2 = AddOutPt(eNext, horzEdge->Bot); - AddJoin(op1, op2, horzEdge->Top); - } - } - else - UpdateEdgeIntoAEL(horzEdge); - } - else - { - if (horzEdge->OutIdx >= 0) AddOutPt(horzEdge, horzEdge->Top); - DeleteFromAEL(horzEdge); - } -} -//------------------------------------------------------------------------------ - -bool Clipper::ProcessIntersections(const cInt topY) -{ - if( !m_ActiveEdges ) return true; - try { - BuildIntersectList(topY); - size_t IlSize = m_IntersectList.size(); - if (IlSize == 0) return true; - if (IlSize == 1 || FixupIntersectionOrder()) ProcessIntersectList(); - else return false; - } - catch(...) - { - m_SortedEdges = 0; - DisposeIntersectNodes(); - throw clipperException("ProcessIntersections error"); - } - m_SortedEdges = 0; - return true; -} -//------------------------------------------------------------------------------ - -void Clipper::DisposeIntersectNodes() -{ - for (size_t i = 0; i < m_IntersectList.size(); ++i ) - delete m_IntersectList[i]; - m_IntersectList.clear(); -} -//------------------------------------------------------------------------------ - -void Clipper::BuildIntersectList(const cInt topY) -{ - if ( !m_ActiveEdges ) return; - - //prepare for sorting ... - TEdge* e = m_ActiveEdges; - m_SortedEdges = e; - while( e ) - { - e->PrevInSEL = e->PrevInAEL; - e->NextInSEL = e->NextInAEL; - e->Curr.X = TopX( *e, topY ); - e = e->NextInAEL; - } - - //bubblesort ... - bool isModified; - do - { - isModified = false; - e = m_SortedEdges; - while( e->NextInSEL ) - { - TEdge *eNext = e->NextInSEL; - IntPoint Pt; - if(e->Curr.X > eNext->Curr.X) - { - IntersectPoint(*e, *eNext, Pt); - if (Pt.Y < topY) Pt = IntPoint(TopX(*e, topY), topY); - IntersectNode * newNode = new IntersectNode; - newNode->Edge1 = e; - newNode->Edge2 = eNext; - newNode->Pt = Pt; - m_IntersectList.push_back(newNode); - - SwapPositionsInSEL(e, eNext); - isModified = true; - } - else - e = eNext; - } - if( e->PrevInSEL ) e->PrevInSEL->NextInSEL = 0; - else break; - } - while ( isModified ); - m_SortedEdges = 0; //important -} -//------------------------------------------------------------------------------ - - -void Clipper::ProcessIntersectList() -{ - for (size_t i = 0; i < m_IntersectList.size(); ++i) - { - IntersectNode* iNode = m_IntersectList[i]; - { - IntersectEdges( iNode->Edge1, iNode->Edge2, iNode->Pt); - SwapPositionsInAEL( iNode->Edge1 , iNode->Edge2 ); - } - delete iNode; - } - m_IntersectList.clear(); -} -//------------------------------------------------------------------------------ - -bool IntersectListSort(IntersectNode* node1, IntersectNode* node2) -{ - return node2->Pt.Y < node1->Pt.Y; -} -//------------------------------------------------------------------------------ - -inline bool EdgesAdjacent(const IntersectNode &inode) -{ - return (inode.Edge1->NextInSEL == inode.Edge2) || - (inode.Edge1->PrevInSEL == inode.Edge2); -} -//------------------------------------------------------------------------------ - -bool Clipper::FixupIntersectionOrder() -{ - //pre-condition: intersections are sorted Bottom-most first. - //Now it's crucial that intersections are made only between adjacent edges, - //so to ensure this the order of intersections may need adjusting ... - CopyAELToSEL(); - std::sort(m_IntersectList.begin(), m_IntersectList.end(), IntersectListSort); - size_t cnt = m_IntersectList.size(); - for (size_t i = 0; i < cnt; ++i) - { - if (!EdgesAdjacent(*m_IntersectList[i])) - { - size_t j = i + 1; - while (j < cnt && !EdgesAdjacent(*m_IntersectList[j])) j++; - if (j == cnt) return false; - std::swap(m_IntersectList[i], m_IntersectList[j]); - } - SwapPositionsInSEL(m_IntersectList[i]->Edge1, m_IntersectList[i]->Edge2); - } - return true; -} -//------------------------------------------------------------------------------ - -void Clipper::DoMaxima(TEdge *e) -{ - TEdge* eMaxPair = GetMaximaPairEx(e); - if (!eMaxPair) - { - if (e->OutIdx >= 0) - AddOutPt(e, e->Top); - DeleteFromAEL(e); - return; - } - - TEdge* eNext = e->NextInAEL; - while(eNext && eNext != eMaxPair) - { - IntersectEdges(e, eNext, e->Top); - SwapPositionsInAEL(e, eNext); - eNext = e->NextInAEL; - } - - if(e->OutIdx == Unassigned && eMaxPair->OutIdx == Unassigned) - { - DeleteFromAEL(e); - DeleteFromAEL(eMaxPair); - } - else if( e->OutIdx >= 0 && eMaxPair->OutIdx >= 0 ) - { - if (e->OutIdx >= 0) AddLocalMaxPoly(e, eMaxPair, e->Top); - DeleteFromAEL(e); - DeleteFromAEL(eMaxPair); - } -#ifdef use_lines - else if (e->WindDelta == 0) - { - if (e->OutIdx >= 0) - { - AddOutPt(e, e->Top); - e->OutIdx = Unassigned; - } - DeleteFromAEL(e); - - if (eMaxPair->OutIdx >= 0) - { - AddOutPt(eMaxPair, e->Top); - eMaxPair->OutIdx = Unassigned; - } - DeleteFromAEL(eMaxPair); - } -#endif - else throw clipperException("DoMaxima error"); -} -//------------------------------------------------------------------------------ - -void Clipper::ProcessEdgesAtTopOfScanbeam(const cInt topY) -{ - TEdge* e = m_ActiveEdges; - while( e ) - { - //1. process maxima, treating them as if they're 'bent' horizontal edges, - // but exclude maxima with horizontal edges. nb: e can't be a horizontal. - bool IsMaximaEdge = IsMaxima(e, topY); - - if(IsMaximaEdge) - { - TEdge* eMaxPair = GetMaximaPairEx(e); - IsMaximaEdge = (!eMaxPair || !IsHorizontal(*eMaxPair)); - } - - if(IsMaximaEdge) - { - if (m_StrictSimple) m_Maxima.push_back(e->Top.X); - TEdge* ePrev = e->PrevInAEL; - DoMaxima(e); - if( !ePrev ) e = m_ActiveEdges; - else e = ePrev->NextInAEL; - } - else - { - //2. promote horizontal edges, otherwise update Curr.X and Curr.Y ... - if (IsIntermediate(e, topY) && IsHorizontal(*e->NextInLML)) - { - UpdateEdgeIntoAEL(e); - if (e->OutIdx >= 0) - AddOutPt(e, e->Bot); - AddEdgeToSEL(e); - } - else - { - e->Curr.X = TopX( *e, topY ); - e->Curr.Y = topY; -#ifdef use_xyz - e->Curr.Z = topY == e->Top.Y ? e->Top.Z : (topY == e->Bot.Y ? e->Bot.Z : 0); -#endif - } - - //When StrictlySimple and 'e' is being touched by another edge, then - //make sure both edges have a vertex here ... - if (m_StrictSimple) - { - TEdge* ePrev = e->PrevInAEL; - if ((e->OutIdx >= 0) && (e->WindDelta != 0) && ePrev && (ePrev->OutIdx >= 0) && - (ePrev->Curr.X == e->Curr.X) && (ePrev->WindDelta != 0)) - { - IntPoint pt = e->Curr; -#ifdef use_xyz - SetZ(pt, *ePrev, *e); -#endif - OutPt* op = AddOutPt(ePrev, pt); - OutPt* op2 = AddOutPt(e, pt); - AddJoin(op, op2, pt); //StrictlySimple (type-3) join - } - } - - e = e->NextInAEL; - } - } - - //3. Process horizontals at the Top of the scanbeam ... - m_Maxima.sort(); - ProcessHorizontals(); - m_Maxima.clear(); - - //4. Promote intermediate vertices ... - e = m_ActiveEdges; - while(e) - { - if(IsIntermediate(e, topY)) - { - OutPt* op = 0; - if( e->OutIdx >= 0 ) - op = AddOutPt(e, e->Top); - UpdateEdgeIntoAEL(e); - - //if output polygons share an edge, they'll need joining later ... - TEdge* ePrev = e->PrevInAEL; - TEdge* eNext = e->NextInAEL; - if (ePrev && ePrev->Curr.X == e->Bot.X && - ePrev->Curr.Y == e->Bot.Y && op && - ePrev->OutIdx >= 0 && ePrev->Curr.Y > ePrev->Top.Y && - SlopesEqual(e->Curr, e->Top, ePrev->Curr, ePrev->Top, m_UseFullRange) && - (e->WindDelta != 0) && (ePrev->WindDelta != 0)) - { - OutPt* op2 = AddOutPt(ePrev, e->Bot); - AddJoin(op, op2, e->Top); - } - else if (eNext && eNext->Curr.X == e->Bot.X && - eNext->Curr.Y == e->Bot.Y && op && - eNext->OutIdx >= 0 && eNext->Curr.Y > eNext->Top.Y && - SlopesEqual(e->Curr, e->Top, eNext->Curr, eNext->Top, m_UseFullRange) && - (e->WindDelta != 0) && (eNext->WindDelta != 0)) - { - OutPt* op2 = AddOutPt(eNext, e->Bot); - AddJoin(op, op2, e->Top); - } - } - e = e->NextInAEL; - } -} -//------------------------------------------------------------------------------ - -void Clipper::FixupOutPolyline(OutRec &outrec) -{ - OutPt *pp = outrec.Pts; - OutPt *lastPP = pp->Prev; - while (pp != lastPP) - { - pp = pp->Next; - if (pp->Pt == pp->Prev->Pt) - { - if (pp == lastPP) lastPP = pp->Prev; - OutPt *tmpPP = pp->Prev; - tmpPP->Next = pp->Next; - pp->Next->Prev = tmpPP; - delete pp; - pp = tmpPP; - } - } - - if (pp == pp->Prev) - { - DisposeOutPts(pp); - outrec.Pts = 0; - return; - } -} -//------------------------------------------------------------------------------ - -void Clipper::FixupOutPolygon(OutRec &outrec) -{ - //FixupOutPolygon() - removes duplicate points and simplifies consecutive - //parallel edges by removing the middle vertex. - OutPt *lastOK = 0; - outrec.BottomPt = 0; - OutPt *pp = outrec.Pts; - bool preserveCol = m_PreserveCollinear || m_StrictSimple; - - for (;;) - { - if (pp->Prev == pp || pp->Prev == pp->Next) - { - DisposeOutPts(pp); - outrec.Pts = 0; - return; - } - - //test for duplicate points and collinear edges ... - if ((pp->Pt == pp->Next->Pt) || (pp->Pt == pp->Prev->Pt) || - (SlopesEqual(pp->Prev->Pt, pp->Pt, pp->Next->Pt, m_UseFullRange) && - (!preserveCol || !Pt2IsBetweenPt1AndPt3(pp->Prev->Pt, pp->Pt, pp->Next->Pt)))) - { - lastOK = 0; - OutPt *tmp = pp; - pp->Prev->Next = pp->Next; - pp->Next->Prev = pp->Prev; - pp = pp->Prev; - delete tmp; - } - else if (pp == lastOK) break; - else - { - if (!lastOK) lastOK = pp; - pp = pp->Next; - } - } - outrec.Pts = pp; -} -//------------------------------------------------------------------------------ - -int PointCount(OutPt *Pts) -{ - if (!Pts) return 0; - int result = 0; - OutPt* p = Pts; - do - { - result++; - p = p->Next; - } - while (p != Pts); - return result; -} -//------------------------------------------------------------------------------ - -void Clipper::BuildResult(Paths &polys) -{ - polys.reserve(m_PolyOuts.size()); - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - { - if (!m_PolyOuts[i]->Pts) continue; - Path pg; - OutPt* p = m_PolyOuts[i]->Pts->Prev; - int cnt = PointCount(p); - if (cnt < 2) continue; - pg.reserve(cnt); - for (int i = 0; i < cnt; ++i) - { - pg.push_back(p->Pt); - p = p->Prev; - } - polys.push_back(pg); - } -} -//------------------------------------------------------------------------------ - -void Clipper::BuildResult2(PolyTree& polytree) -{ - polytree.Clear(); - polytree.AllNodes.reserve(m_PolyOuts.size()); - //add each output polygon/contour to polytree ... - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); i++) - { - OutRec* outRec = m_PolyOuts[i]; - int cnt = PointCount(outRec->Pts); - if ((outRec->IsOpen && cnt < 2) || (!outRec->IsOpen && cnt < 3)) continue; - FixHoleLinkage(*outRec); - PolyNode* pn = new PolyNode(); - //nb: polytree takes ownership of all the PolyNodes - polytree.AllNodes.push_back(pn); - outRec->PolyNd = pn; - pn->Parent = 0; - pn->Index = 0; - pn->Contour.reserve(cnt); - OutPt *op = outRec->Pts->Prev; - for (int j = 0; j < cnt; j++) - { - pn->Contour.push_back(op->Pt); - op = op->Prev; - } - } - - //fixup PolyNode links etc ... - polytree.Childs.reserve(m_PolyOuts.size()); - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); i++) - { - OutRec* outRec = m_PolyOuts[i]; - if (!outRec->PolyNd) continue; - if (outRec->IsOpen) - { - outRec->PolyNd->m_IsOpen = true; - polytree.AddChild(*outRec->PolyNd); - } - else if (outRec->FirstLeft && outRec->FirstLeft->PolyNd) - outRec->FirstLeft->PolyNd->AddChild(*outRec->PolyNd); - else - polytree.AddChild(*outRec->PolyNd); - } -} -//------------------------------------------------------------------------------ - -void SwapIntersectNodes(IntersectNode &int1, IntersectNode &int2) -{ - //just swap the contents (because fIntersectNodes is a single-linked-list) - IntersectNode inode = int1; //gets a copy of Int1 - int1.Edge1 = int2.Edge1; - int1.Edge2 = int2.Edge2; - int1.Pt = int2.Pt; - int2.Edge1 = inode.Edge1; - int2.Edge2 = inode.Edge2; - int2.Pt = inode.Pt; -} -//------------------------------------------------------------------------------ - -inline bool E2InsertsBeforeE1(TEdge &e1, TEdge &e2) -{ - if (e2.Curr.X == e1.Curr.X) - { - if (e2.Top.Y > e1.Top.Y) - return e2.Top.X < TopX(e1, e2.Top.Y); - else return e1.Top.X > TopX(e2, e1.Top.Y); - } - else return e2.Curr.X < e1.Curr.X; -} -//------------------------------------------------------------------------------ - -bool GetOverlap(const cInt a1, const cInt a2, const cInt b1, const cInt b2, - cInt& Left, cInt& Right) -{ - if (a1 < a2) - { - if (b1 < b2) {Left = std::max(a1,b1); Right = std::min(a2,b2);} - else {Left = std::max(a1,b2); Right = std::min(a2,b1);} - } - else - { - if (b1 < b2) {Left = std::max(a2,b1); Right = std::min(a1,b2);} - else {Left = std::max(a2,b2); Right = std::min(a1,b1);} - } - return Left < Right; -} -//------------------------------------------------------------------------------ - -inline void UpdateOutPtIdxs(OutRec& outrec) -{ - OutPt* op = outrec.Pts; - do - { - op->Idx = outrec.Idx; - op = op->Prev; - } - while(op != outrec.Pts); -} -//------------------------------------------------------------------------------ - -void Clipper::InsertEdgeIntoAEL(TEdge *edge, TEdge* startEdge) -{ - if(!m_ActiveEdges) - { - edge->PrevInAEL = 0; - edge->NextInAEL = 0; - m_ActiveEdges = edge; - } - else if(!startEdge && E2InsertsBeforeE1(*m_ActiveEdges, *edge)) - { - edge->PrevInAEL = 0; - edge->NextInAEL = m_ActiveEdges; - m_ActiveEdges->PrevInAEL = edge; - m_ActiveEdges = edge; - } - else - { - if(!startEdge) startEdge = m_ActiveEdges; - while(startEdge->NextInAEL && - !E2InsertsBeforeE1(*startEdge->NextInAEL , *edge)) - startEdge = startEdge->NextInAEL; - edge->NextInAEL = startEdge->NextInAEL; - if(startEdge->NextInAEL) startEdge->NextInAEL->PrevInAEL = edge; - edge->PrevInAEL = startEdge; - startEdge->NextInAEL = edge; - } -} -//---------------------------------------------------------------------- - -OutPt* DupOutPt(OutPt* outPt, bool InsertAfter) -{ - OutPt* result = new OutPt; - result->Pt = outPt->Pt; - result->Idx = outPt->Idx; - if (InsertAfter) - { - result->Next = outPt->Next; - result->Prev = outPt; - outPt->Next->Prev = result; - outPt->Next = result; - } - else - { - result->Prev = outPt->Prev; - result->Next = outPt; - outPt->Prev->Next = result; - outPt->Prev = result; - } - return result; -} -//------------------------------------------------------------------------------ - -bool JoinHorz(OutPt* op1, OutPt* op1b, OutPt* op2, OutPt* op2b, - const IntPoint Pt, bool DiscardLeft) -{ - Direction Dir1 = (op1->Pt.X > op1b->Pt.X ? dRightToLeft : dLeftToRight); - Direction Dir2 = (op2->Pt.X > op2b->Pt.X ? dRightToLeft : dLeftToRight); - if (Dir1 == Dir2) return false; - - //When DiscardLeft, we want Op1b to be on the Left of Op1, otherwise we - //want Op1b to be on the Right. (And likewise with Op2 and Op2b.) - //So, to facilitate this while inserting Op1b and Op2b ... - //when DiscardLeft, make sure we're AT or RIGHT of Pt before adding Op1b, - //otherwise make sure we're AT or LEFT of Pt. (Likewise with Op2b.) - if (Dir1 == dLeftToRight) - { - while (op1->Next->Pt.X <= Pt.X && - op1->Next->Pt.X >= op1->Pt.X && op1->Next->Pt.Y == Pt.Y) - op1 = op1->Next; - if (DiscardLeft && (op1->Pt.X != Pt.X)) op1 = op1->Next; - op1b = DupOutPt(op1, !DiscardLeft); - if (op1b->Pt != Pt) - { - op1 = op1b; - op1->Pt = Pt; - op1b = DupOutPt(op1, !DiscardLeft); - } - } - else - { - while (op1->Next->Pt.X >= Pt.X && - op1->Next->Pt.X <= op1->Pt.X && op1->Next->Pt.Y == Pt.Y) - op1 = op1->Next; - if (!DiscardLeft && (op1->Pt.X != Pt.X)) op1 = op1->Next; - op1b = DupOutPt(op1, DiscardLeft); - if (op1b->Pt != Pt) - { - op1 = op1b; - op1->Pt = Pt; - op1b = DupOutPt(op1, DiscardLeft); - } - } - - if (Dir2 == dLeftToRight) - { - while (op2->Next->Pt.X <= Pt.X && - op2->Next->Pt.X >= op2->Pt.X && op2->Next->Pt.Y == Pt.Y) - op2 = op2->Next; - if (DiscardLeft && (op2->Pt.X != Pt.X)) op2 = op2->Next; - op2b = DupOutPt(op2, !DiscardLeft); - if (op2b->Pt != Pt) - { - op2 = op2b; - op2->Pt = Pt; - op2b = DupOutPt(op2, !DiscardLeft); - }; - } else - { - while (op2->Next->Pt.X >= Pt.X && - op2->Next->Pt.X <= op2->Pt.X && op2->Next->Pt.Y == Pt.Y) - op2 = op2->Next; - if (!DiscardLeft && (op2->Pt.X != Pt.X)) op2 = op2->Next; - op2b = DupOutPt(op2, DiscardLeft); - if (op2b->Pt != Pt) - { - op2 = op2b; - op2->Pt = Pt; - op2b = DupOutPt(op2, DiscardLeft); - }; - }; - - if ((Dir1 == dLeftToRight) == DiscardLeft) - { - op1->Prev = op2; - op2->Next = op1; - op1b->Next = op2b; - op2b->Prev = op1b; - } - else - { - op1->Next = op2; - op2->Prev = op1; - op1b->Prev = op2b; - op2b->Next = op1b; - } - return true; -} -//------------------------------------------------------------------------------ - -bool Clipper::JoinPoints(Join *j, OutRec* outRec1, OutRec* outRec2) -{ - OutPt *op1 = j->OutPt1, *op1b; - OutPt *op2 = j->OutPt2, *op2b; - - //There are 3 kinds of joins for output polygons ... - //1. Horizontal joins where Join.OutPt1 & Join.OutPt2 are vertices anywhere - //along (horizontal) collinear edges (& Join.OffPt is on the same horizontal). - //2. Non-horizontal joins where Join.OutPt1 & Join.OutPt2 are at the same - //location at the Bottom of the overlapping segment (& Join.OffPt is above). - //3. StrictSimple joins where edges touch but are not collinear and where - //Join.OutPt1, Join.OutPt2 & Join.OffPt all share the same point. - bool isHorizontal = (j->OutPt1->Pt.Y == j->OffPt.Y); - - if (isHorizontal && (j->OffPt == j->OutPt1->Pt) && - (j->OffPt == j->OutPt2->Pt)) - { - //Strictly Simple join ... - if (outRec1 != outRec2) return false; - op1b = j->OutPt1->Next; - while (op1b != op1 && (op1b->Pt == j->OffPt)) - op1b = op1b->Next; - bool reverse1 = (op1b->Pt.Y > j->OffPt.Y); - op2b = j->OutPt2->Next; - while (op2b != op2 && (op2b->Pt == j->OffPt)) - op2b = op2b->Next; - bool reverse2 = (op2b->Pt.Y > j->OffPt.Y); - if (reverse1 == reverse2) return false; - if (reverse1) - { - op1b = DupOutPt(op1, false); - op2b = DupOutPt(op2, true); - op1->Prev = op2; - op2->Next = op1; - op1b->Next = op2b; - op2b->Prev = op1b; - j->OutPt1 = op1; - j->OutPt2 = op1b; - return true; - } else - { - op1b = DupOutPt(op1, true); - op2b = DupOutPt(op2, false); - op1->Next = op2; - op2->Prev = op1; - op1b->Prev = op2b; - op2b->Next = op1b; - j->OutPt1 = op1; - j->OutPt2 = op1b; - return true; - } - } - else if (isHorizontal) - { - //treat horizontal joins differently to non-horizontal joins since with - //them we're not yet sure where the overlapping is. OutPt1.Pt & OutPt2.Pt - //may be anywhere along the horizontal edge. - op1b = op1; - while (op1->Prev->Pt.Y == op1->Pt.Y && op1->Prev != op1b && op1->Prev != op2) - op1 = op1->Prev; - while (op1b->Next->Pt.Y == op1b->Pt.Y && op1b->Next != op1 && op1b->Next != op2) - op1b = op1b->Next; - if (op1b->Next == op1 || op1b->Next == op2) return false; //a flat 'polygon' - - op2b = op2; - while (op2->Prev->Pt.Y == op2->Pt.Y && op2->Prev != op2b && op2->Prev != op1b) - op2 = op2->Prev; - while (op2b->Next->Pt.Y == op2b->Pt.Y && op2b->Next != op2 && op2b->Next != op1) - op2b = op2b->Next; - if (op2b->Next == op2 || op2b->Next == op1) return false; //a flat 'polygon' - - cInt Left, Right; - //Op1 --> Op1b & Op2 --> Op2b are the extremites of the horizontal edges - if (!GetOverlap(op1->Pt.X, op1b->Pt.X, op2->Pt.X, op2b->Pt.X, Left, Right)) - return false; - - //DiscardLeftSide: when overlapping edges are joined, a spike will created - //which needs to be cleaned up. However, we don't want Op1 or Op2 caught up - //on the discard Side as either may still be needed for other joins ... - IntPoint Pt; - bool DiscardLeftSide; - if (op1->Pt.X >= Left && op1->Pt.X <= Right) - { - Pt = op1->Pt; DiscardLeftSide = (op1->Pt.X > op1b->Pt.X); - } - else if (op2->Pt.X >= Left&& op2->Pt.X <= Right) - { - Pt = op2->Pt; DiscardLeftSide = (op2->Pt.X > op2b->Pt.X); - } - else if (op1b->Pt.X >= Left && op1b->Pt.X <= Right) - { - Pt = op1b->Pt; DiscardLeftSide = op1b->Pt.X > op1->Pt.X; - } - else - { - Pt = op2b->Pt; DiscardLeftSide = (op2b->Pt.X > op2->Pt.X); - } - j->OutPt1 = op1; j->OutPt2 = op2; - return JoinHorz(op1, op1b, op2, op2b, Pt, DiscardLeftSide); - } else - { - //nb: For non-horizontal joins ... - // 1. Jr.OutPt1.Pt.Y == Jr.OutPt2.Pt.Y - // 2. Jr.OutPt1.Pt > Jr.OffPt.Y - - //make sure the polygons are correctly oriented ... - op1b = op1->Next; - while ((op1b->Pt == op1->Pt) && (op1b != op1)) op1b = op1b->Next; - bool Reverse1 = ((op1b->Pt.Y > op1->Pt.Y) || - !SlopesEqual(op1->Pt, op1b->Pt, j->OffPt, m_UseFullRange)); - if (Reverse1) - { - op1b = op1->Prev; - while ((op1b->Pt == op1->Pt) && (op1b != op1)) op1b = op1b->Prev; - if ((op1b->Pt.Y > op1->Pt.Y) || - !SlopesEqual(op1->Pt, op1b->Pt, j->OffPt, m_UseFullRange)) return false; - }; - op2b = op2->Next; - while ((op2b->Pt == op2->Pt) && (op2b != op2))op2b = op2b->Next; - bool Reverse2 = ((op2b->Pt.Y > op2->Pt.Y) || - !SlopesEqual(op2->Pt, op2b->Pt, j->OffPt, m_UseFullRange)); - if (Reverse2) - { - op2b = op2->Prev; - while ((op2b->Pt == op2->Pt) && (op2b != op2)) op2b = op2b->Prev; - if ((op2b->Pt.Y > op2->Pt.Y) || - !SlopesEqual(op2->Pt, op2b->Pt, j->OffPt, m_UseFullRange)) return false; - } - - if ((op1b == op1) || (op2b == op2) || (op1b == op2b) || - ((outRec1 == outRec2) && (Reverse1 == Reverse2))) return false; - - if (Reverse1) - { - op1b = DupOutPt(op1, false); - op2b = DupOutPt(op2, true); - op1->Prev = op2; - op2->Next = op1; - op1b->Next = op2b; - op2b->Prev = op1b; - j->OutPt1 = op1; - j->OutPt2 = op1b; - return true; - } else - { - op1b = DupOutPt(op1, true); - op2b = DupOutPt(op2, false); - op1->Next = op2; - op2->Prev = op1; - op1b->Prev = op2b; - op2b->Next = op1b; - j->OutPt1 = op1; - j->OutPt2 = op1b; - return true; - } - } -} -//---------------------------------------------------------------------- - -static OutRec* ParseFirstLeft(OutRec* FirstLeft) -{ - while (FirstLeft && !FirstLeft->Pts) - FirstLeft = FirstLeft->FirstLeft; - return FirstLeft; -} -//------------------------------------------------------------------------------ - -void Clipper::FixupFirstLefts1(OutRec* OldOutRec, OutRec* NewOutRec) -{ - //tests if NewOutRec contains the polygon before reassigning FirstLeft - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - { - OutRec* outRec = m_PolyOuts[i]; - OutRec* firstLeft = ParseFirstLeft(outRec->FirstLeft); - if (outRec->Pts && firstLeft == OldOutRec) - { - if (Poly2ContainsPoly1(outRec->Pts, NewOutRec->Pts)) - outRec->FirstLeft = NewOutRec; - } - } -} -//---------------------------------------------------------------------- - -void Clipper::FixupFirstLefts2(OutRec* InnerOutRec, OutRec* OuterOutRec) -{ - //A polygon has split into two such that one is now the inner of the other. - //It's possible that these polygons now wrap around other polygons, so check - //every polygon that's also contained by OuterOutRec's FirstLeft container - //(including 0) to see if they've become inner to the new inner polygon ... - OutRec* orfl = OuterOutRec->FirstLeft; - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - { - OutRec* outRec = m_PolyOuts[i]; - - if (!outRec->Pts || outRec == OuterOutRec || outRec == InnerOutRec) - continue; - OutRec* firstLeft = ParseFirstLeft(outRec->FirstLeft); - if (firstLeft != orfl && firstLeft != InnerOutRec && firstLeft != OuterOutRec) - continue; - if (Poly2ContainsPoly1(outRec->Pts, InnerOutRec->Pts)) - outRec->FirstLeft = InnerOutRec; - else if (Poly2ContainsPoly1(outRec->Pts, OuterOutRec->Pts)) - outRec->FirstLeft = OuterOutRec; - else if (outRec->FirstLeft == InnerOutRec || outRec->FirstLeft == OuterOutRec) - outRec->FirstLeft = orfl; - } -} -//---------------------------------------------------------------------- -void Clipper::FixupFirstLefts3(OutRec* OldOutRec, OutRec* NewOutRec) -{ - //reassigns FirstLeft WITHOUT testing if NewOutRec contains the polygon - for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i) - { - OutRec* outRec = m_PolyOuts[i]; - OutRec* firstLeft = ParseFirstLeft(outRec->FirstLeft); - if (outRec->Pts && firstLeft == OldOutRec) - outRec->FirstLeft = NewOutRec; - } -} -//---------------------------------------------------------------------- - -void Clipper::JoinCommonEdges() -{ - for (JoinList::size_type i = 0; i < m_Joins.size(); i++) - { - Join* join = m_Joins[i]; - - OutRec *outRec1 = GetOutRec(join->OutPt1->Idx); - OutRec *outRec2 = GetOutRec(join->OutPt2->Idx); - - if (!outRec1->Pts || !outRec2->Pts) continue; - if (outRec1->IsOpen || outRec2->IsOpen) continue; - - //get the polygon fragment with the correct hole state (FirstLeft) - //before calling JoinPoints() ... - OutRec *holeStateRec; - if (outRec1 == outRec2) holeStateRec = outRec1; - else if (OutRec1RightOfOutRec2(outRec1, outRec2)) holeStateRec = outRec2; - else if (OutRec1RightOfOutRec2(outRec2, outRec1)) holeStateRec = outRec1; - else holeStateRec = GetLowermostRec(outRec1, outRec2); - - if (!JoinPoints(join, outRec1, outRec2)) continue; - - if (outRec1 == outRec2) - { - //instead of joining two polygons, we've just created a new one by - //splitting one polygon into two. - outRec1->Pts = join->OutPt1; - outRec1->BottomPt = 0; - outRec2 = CreateOutRec(); - outRec2->Pts = join->OutPt2; - - //update all OutRec2.Pts Idx's ... - UpdateOutPtIdxs(*outRec2); - - if (Poly2ContainsPoly1(outRec2->Pts, outRec1->Pts)) - { - //outRec1 contains outRec2 ... - outRec2->IsHole = !outRec1->IsHole; - outRec2->FirstLeft = outRec1; - - if (m_UsingPolyTree) FixupFirstLefts2(outRec2, outRec1); - - if ((outRec2->IsHole ^ m_ReverseOutput) == (Area(*outRec2) > 0)) - ReversePolyPtLinks(outRec2->Pts); - - } else if (Poly2ContainsPoly1(outRec1->Pts, outRec2->Pts)) - { - //outRec2 contains outRec1 ... - outRec2->IsHole = outRec1->IsHole; - outRec1->IsHole = !outRec2->IsHole; - outRec2->FirstLeft = outRec1->FirstLeft; - outRec1->FirstLeft = outRec2; - - if (m_UsingPolyTree) FixupFirstLefts2(outRec1, outRec2); - - if ((outRec1->IsHole ^ m_ReverseOutput) == (Area(*outRec1) > 0)) - ReversePolyPtLinks(outRec1->Pts); - } - else - { - //the 2 polygons are completely separate ... - outRec2->IsHole = outRec1->IsHole; - outRec2->FirstLeft = outRec1->FirstLeft; - - //fixup FirstLeft pointers that may need reassigning to OutRec2 - if (m_UsingPolyTree) FixupFirstLefts1(outRec1, outRec2); - } - - } else - { - //joined 2 polygons together ... - - outRec2->Pts = 0; - outRec2->BottomPt = 0; - outRec2->Idx = outRec1->Idx; - - outRec1->IsHole = holeStateRec->IsHole; - if (holeStateRec == outRec2) - outRec1->FirstLeft = outRec2->FirstLeft; - outRec2->FirstLeft = outRec1; - - if (m_UsingPolyTree) FixupFirstLefts3(outRec2, outRec1); - } - } -} - -//------------------------------------------------------------------------------ -// ClipperOffset support functions ... -//------------------------------------------------------------------------------ - -DoublePoint GetUnitNormal(const IntPoint &pt1, const IntPoint &pt2) -{ - if(pt2.X == pt1.X && pt2.Y == pt1.Y) - return DoublePoint(0, 0); - - double Dx = (double)(pt2.X - pt1.X); - double dy = (double)(pt2.Y - pt1.Y); - double f = 1 *1.0/ std::sqrt( Dx*Dx + dy*dy ); - Dx *= f; - dy *= f; - return DoublePoint(dy, -Dx); -} - -//------------------------------------------------------------------------------ -// ClipperOffset class -//------------------------------------------------------------------------------ - -ClipperOffset::ClipperOffset(double miterLimit, double arcTolerance) -{ - this->MiterLimit = miterLimit; - this->ArcTolerance = arcTolerance; - m_lowest.X = -1; -} -//------------------------------------------------------------------------------ - -ClipperOffset::~ClipperOffset() -{ - Clear(); -} -//------------------------------------------------------------------------------ - -void ClipperOffset::Clear() -{ - for (int i = 0; i < m_polyNodes.ChildCount(); ++i) - delete m_polyNodes.Childs[i]; - m_polyNodes.Childs.clear(); - m_lowest.X = -1; -} -//------------------------------------------------------------------------------ - -void ClipperOffset::AddPath(const Path& path, JoinType joinType, EndType endType) -{ - int highI = (int)path.size() - 1; - if (highI < 0) return; - PolyNode* newNode = new PolyNode(); - newNode->m_jointype = joinType; - newNode->m_endtype = endType; - - //strip duplicate points from path and also get index to the lowest point ... - if (endType == etClosedLine || endType == etClosedPolygon) - while (highI > 0 && path[0] == path[highI]) highI--; - newNode->Contour.reserve(highI + 1); - newNode->Contour.push_back(path[0]); - int j = 0, k = 0; - for (int i = 1; i <= highI; i++) - if (newNode->Contour[j] != path[i]) - { - j++; - newNode->Contour.push_back(path[i]); - if (path[i].Y > newNode->Contour[k].Y || - (path[i].Y == newNode->Contour[k].Y && - path[i].X < newNode->Contour[k].X)) k = j; - } - if (endType == etClosedPolygon && j < 2) - { - delete newNode; - return; - } - m_polyNodes.AddChild(*newNode); - - //if this path's lowest pt is lower than all the others then update m_lowest - if (endType != etClosedPolygon) return; - if (m_lowest.X < 0) - m_lowest = IntPoint(m_polyNodes.ChildCount() - 1, k); - else - { - IntPoint ip = m_polyNodes.Childs[(int)m_lowest.X]->Contour[(int)m_lowest.Y]; - if (newNode->Contour[k].Y > ip.Y || - (newNode->Contour[k].Y == ip.Y && - newNode->Contour[k].X < ip.X)) - m_lowest = IntPoint(m_polyNodes.ChildCount() - 1, k); - } -} -//------------------------------------------------------------------------------ - -void ClipperOffset::AddPaths(const Paths& paths, JoinType joinType, EndType endType) -{ - for (Paths::size_type i = 0; i < paths.size(); ++i) - AddPath(paths[i], joinType, endType); -} -//------------------------------------------------------------------------------ - -void ClipperOffset::FixOrientations() -{ - //fixup orientations of all closed paths if the orientation of the - //closed path with the lowermost vertex is wrong ... - if (m_lowest.X >= 0 && - !Orientation(m_polyNodes.Childs[(int)m_lowest.X]->Contour)) - { - for (int i = 0; i < m_polyNodes.ChildCount(); ++i) - { - PolyNode& node = *m_polyNodes.Childs[i]; - if (node.m_endtype == etClosedPolygon || - (node.m_endtype == etClosedLine && Orientation(node.Contour))) - ReversePath(node.Contour); - } - } else - { - for (int i = 0; i < m_polyNodes.ChildCount(); ++i) - { - PolyNode& node = *m_polyNodes.Childs[i]; - if (node.m_endtype == etClosedLine && !Orientation(node.Contour)) - ReversePath(node.Contour); - } - } -} -//------------------------------------------------------------------------------ - -void ClipperOffset::Execute(Paths& solution, double delta) -{ - solution.clear(); - FixOrientations(); - DoOffset(delta); - - //now clean up 'corners' ... - Clipper clpr; - clpr.AddPaths(m_destPolys, ptSubject, true); - if (delta > 0) - { - clpr.Execute(ctUnion, solution, pftPositive, pftPositive); - } - else - { - IntRect r = clpr.GetBounds(); - Path outer(4); - outer[0] = IntPoint(r.left - 10, r.bottom + 10); - outer[1] = IntPoint(r.right + 10, r.bottom + 10); - outer[2] = IntPoint(r.right + 10, r.top - 10); - outer[3] = IntPoint(r.left - 10, r.top - 10); - - clpr.AddPath(outer, ptSubject, true); - clpr.ReverseSolution(true); - clpr.Execute(ctUnion, solution, pftNegative, pftNegative); - if (solution.size() > 0) solution.erase(solution.begin()); - } -} -//------------------------------------------------------------------------------ - -void ClipperOffset::Execute(PolyTree& solution, double delta) -{ - solution.Clear(); - FixOrientations(); - DoOffset(delta); - - //now clean up 'corners' ... - Clipper clpr; - clpr.AddPaths(m_destPolys, ptSubject, true); - if (delta > 0) - { - clpr.Execute(ctUnion, solution, pftPositive, pftPositive); - } - else - { - IntRect r = clpr.GetBounds(); - Path outer(4); - outer[0] = IntPoint(r.left - 10, r.bottom + 10); - outer[1] = IntPoint(r.right + 10, r.bottom + 10); - outer[2] = IntPoint(r.right + 10, r.top - 10); - outer[3] = IntPoint(r.left - 10, r.top - 10); - - clpr.AddPath(outer, ptSubject, true); - clpr.ReverseSolution(true); - clpr.Execute(ctUnion, solution, pftNegative, pftNegative); - //remove the outer PolyNode rectangle ... - if (solution.ChildCount() == 1 && solution.Childs[0]->ChildCount() > 0) - { - PolyNode* outerNode = solution.Childs[0]; - solution.Childs.reserve(outerNode->ChildCount()); - solution.Childs[0] = outerNode->Childs[0]; - solution.Childs[0]->Parent = outerNode->Parent; - for (int i = 1; i < outerNode->ChildCount(); ++i) - solution.AddChild(*outerNode->Childs[i]); - } - else - solution.Clear(); - } -} -//------------------------------------------------------------------------------ - -void ClipperOffset::DoOffset(double delta) -{ - m_destPolys.clear(); - m_delta = delta; - - //if Zero offset, just copy any CLOSED polygons to m_p and return ... - if (NEAR_ZERO(delta)) - { - m_destPolys.reserve(m_polyNodes.ChildCount()); - for (int i = 0; i < m_polyNodes.ChildCount(); i++) - { - PolyNode& node = *m_polyNodes.Childs[i]; - if (node.m_endtype == etClosedPolygon) - m_destPolys.push_back(node.Contour); - } - return; - } - - //see offset_triginometry3.svg in the documentation folder ... - if (MiterLimit > 2) m_miterLim = 2/(MiterLimit * MiterLimit); - else m_miterLim = 0.5; - - double y; - if (ArcTolerance <= 0.0) y = def_arc_tolerance; - else if (ArcTolerance > std::fabs(delta) * def_arc_tolerance) - y = std::fabs(delta) * def_arc_tolerance; - else y = ArcTolerance; - //see offset_triginometry2.svg in the documentation folder ... - double steps = pi / std::acos(1 - y / std::fabs(delta)); - if (steps > std::fabs(delta) * pi) - steps = std::fabs(delta) * pi; //ie excessive precision check - m_sin = std::sin(two_pi / steps); - m_cos = std::cos(two_pi / steps); - m_StepsPerRad = steps / two_pi; - if (delta < 0.0) m_sin = -m_sin; - - m_destPolys.reserve(m_polyNodes.ChildCount() * 2); - for (int i = 0; i < m_polyNodes.ChildCount(); i++) - { - PolyNode& node = *m_polyNodes.Childs[i]; - m_srcPoly = node.Contour; - - int len = (int)m_srcPoly.size(); - if (len == 0 || (delta <= 0 && (len < 3 || node.m_endtype != etClosedPolygon))) - continue; - - m_destPoly.clear(); - if (len == 1) - { - if (node.m_jointype == jtRound) - { - double X = 1.0, Y = 0.0; - for (cInt j = 1; j <= steps; j++) - { - m_destPoly.push_back(IntPoint( - Round(m_srcPoly[0].X + X * delta), - Round(m_srcPoly[0].Y + Y * delta))); - double X2 = X; - X = X * m_cos - m_sin * Y; - Y = X2 * m_sin + Y * m_cos; - } - } - else - { - double X = -1.0, Y = -1.0; - for (int j = 0; j < 4; ++j) - { - m_destPoly.push_back(IntPoint( - Round(m_srcPoly[0].X + X * delta), - Round(m_srcPoly[0].Y + Y * delta))); - if (X < 0) X = 1; - else if (Y < 0) Y = 1; - else X = -1; - } - } - m_destPolys.push_back(m_destPoly); - continue; - } - //build m_normals ... - m_normals.clear(); - m_normals.reserve(len); - for (int j = 0; j < len - 1; ++j) - m_normals.push_back(GetUnitNormal(m_srcPoly[j], m_srcPoly[j + 1])); - if (node.m_endtype == etClosedLine || node.m_endtype == etClosedPolygon) - m_normals.push_back(GetUnitNormal(m_srcPoly[len - 1], m_srcPoly[0])); - else - m_normals.push_back(DoublePoint(m_normals[len - 2])); - - if (node.m_endtype == etClosedPolygon) - { - int k = len - 1; - for (int j = 0; j < len; ++j) - OffsetPoint(j, k, node.m_jointype); - m_destPolys.push_back(m_destPoly); - } - else if (node.m_endtype == etClosedLine) - { - int k = len - 1; - for (int j = 0; j < len; ++j) - OffsetPoint(j, k, node.m_jointype); - m_destPolys.push_back(m_destPoly); - m_destPoly.clear(); - //re-build m_normals ... - DoublePoint n = m_normals[len -1]; - for (int j = len - 1; j > 0; j--) - m_normals[j] = DoublePoint(-m_normals[j - 1].X, -m_normals[j - 1].Y); - m_normals[0] = DoublePoint(-n.X, -n.Y); - k = 0; - for (int j = len - 1; j >= 0; j--) - OffsetPoint(j, k, node.m_jointype); - m_destPolys.push_back(m_destPoly); - } - else - { - int k = 0; - for (int j = 1; j < len - 1; ++j) - OffsetPoint(j, k, node.m_jointype); - - IntPoint pt1; - if (node.m_endtype == etOpenButt) - { - int j = len - 1; - pt1 = IntPoint((cInt)Round(m_srcPoly[j].X + m_normals[j].X * - delta), (cInt)Round(m_srcPoly[j].Y + m_normals[j].Y * delta)); - m_destPoly.push_back(pt1); - pt1 = IntPoint((cInt)Round(m_srcPoly[j].X - m_normals[j].X * - delta), (cInt)Round(m_srcPoly[j].Y - m_normals[j].Y * delta)); - m_destPoly.push_back(pt1); - } - else - { - int j = len - 1; - k = len - 2; - m_sinA = 0; - m_normals[j] = DoublePoint(-m_normals[j].X, -m_normals[j].Y); - if (node.m_endtype == etOpenSquare) - DoSquare(j, k); - else - DoRound(j, k); - } - - //re-build m_normals ... - for (int j = len - 1; j > 0; j--) - m_normals[j] = DoublePoint(-m_normals[j - 1].X, -m_normals[j - 1].Y); - m_normals[0] = DoublePoint(-m_normals[1].X, -m_normals[1].Y); - - k = len - 1; - for (int j = k - 1; j > 0; --j) OffsetPoint(j, k, node.m_jointype); - - if (node.m_endtype == etOpenButt) - { - pt1 = IntPoint((cInt)Round(m_srcPoly[0].X - m_normals[0].X * delta), - (cInt)Round(m_srcPoly[0].Y - m_normals[0].Y * delta)); - m_destPoly.push_back(pt1); - pt1 = IntPoint((cInt)Round(m_srcPoly[0].X + m_normals[0].X * delta), - (cInt)Round(m_srcPoly[0].Y + m_normals[0].Y * delta)); - m_destPoly.push_back(pt1); - } - else - { - k = 1; - m_sinA = 0; - if (node.m_endtype == etOpenSquare) - DoSquare(0, 1); - else - DoRound(0, 1); - } - m_destPolys.push_back(m_destPoly); - } - } -} -//------------------------------------------------------------------------------ - -void ClipperOffset::OffsetPoint(int j, int& k, JoinType jointype) -{ - //cross product ... - m_sinA = (m_normals[k].X * m_normals[j].Y - m_normals[j].X * m_normals[k].Y); - if (std::fabs(m_sinA * m_delta) < 1.0) - { - //dot product ... - double cosA = (m_normals[k].X * m_normals[j].X + m_normals[j].Y * m_normals[k].Y ); - if (cosA > 0) // angle => 0 degrees - { - m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + m_normals[k].X * m_delta), - Round(m_srcPoly[j].Y + m_normals[k].Y * m_delta))); - return; - } - //else angle => 180 degrees - } - else if (m_sinA > 1.0) m_sinA = 1.0; - else if (m_sinA < -1.0) m_sinA = -1.0; - - if (m_sinA * m_delta < 0) - { - m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + m_normals[k].X * m_delta), - Round(m_srcPoly[j].Y + m_normals[k].Y * m_delta))); - m_destPoly.push_back(m_srcPoly[j]); - m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + m_normals[j].X * m_delta), - Round(m_srcPoly[j].Y + m_normals[j].Y * m_delta))); - } - else - switch (jointype) - { - case jtMiter: - { - double r = 1 + (m_normals[j].X * m_normals[k].X + - m_normals[j].Y * m_normals[k].Y); - if (r >= m_miterLim) DoMiter(j, k, r); else DoSquare(j, k); - break; - } - case jtSquare: DoSquare(j, k); break; - case jtRound: DoRound(j, k); break; - } - k = j; -} -//------------------------------------------------------------------------------ - -void ClipperOffset::DoSquare(int j, int k) -{ - double dx = std::tan(std::atan2(m_sinA, - m_normals[k].X * m_normals[j].X + m_normals[k].Y * m_normals[j].Y) / 4); - m_destPoly.push_back(IntPoint( - Round(m_srcPoly[j].X + m_delta * (m_normals[k].X - m_normals[k].Y * dx)), - Round(m_srcPoly[j].Y + m_delta * (m_normals[k].Y + m_normals[k].X * dx)))); - m_destPoly.push_back(IntPoint( - Round(m_srcPoly[j].X + m_delta * (m_normals[j].X + m_normals[j].Y * dx)), - Round(m_srcPoly[j].Y + m_delta * (m_normals[j].Y - m_normals[j].X * dx)))); -} -//------------------------------------------------------------------------------ - -void ClipperOffset::DoMiter(int j, int k, double r) -{ - double q = m_delta / r; - m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + (m_normals[k].X + m_normals[j].X) * q), - Round(m_srcPoly[j].Y + (m_normals[k].Y + m_normals[j].Y) * q))); -} -//------------------------------------------------------------------------------ - -void ClipperOffset::DoRound(int j, int k) -{ - double a = std::atan2(m_sinA, - m_normals[k].X * m_normals[j].X + m_normals[k].Y * m_normals[j].Y); - int steps = std::max((int)Round(m_StepsPerRad * std::fabs(a)), 1); - - double X = m_normals[k].X, Y = m_normals[k].Y, X2; - for (int i = 0; i < steps; ++i) - { - m_destPoly.push_back(IntPoint( - Round(m_srcPoly[j].X + X * m_delta), - Round(m_srcPoly[j].Y + Y * m_delta))); - X2 = X; - X = X * m_cos - m_sin * Y; - Y = X2 * m_sin + Y * m_cos; - } - m_destPoly.push_back(IntPoint( - Round(m_srcPoly[j].X + m_normals[j].X * m_delta), - Round(m_srcPoly[j].Y + m_normals[j].Y * m_delta))); -} - -//------------------------------------------------------------------------------ -// Miscellaneous public functions -//------------------------------------------------------------------------------ - -void Clipper::DoSimplePolygons() -{ - PolyOutList::size_type i = 0; - while (i < m_PolyOuts.size()) - { - OutRec* outrec = m_PolyOuts[i++]; - OutPt* op = outrec->Pts; - if (!op || outrec->IsOpen) continue; - do //for each Pt in Polygon until duplicate found do ... - { - OutPt* op2 = op->Next; - while (op2 != outrec->Pts) - { - if ((op->Pt == op2->Pt) && op2->Next != op && op2->Prev != op) - { - //split the polygon into two ... - OutPt* op3 = op->Prev; - OutPt* op4 = op2->Prev; - op->Prev = op4; - op4->Next = op; - op2->Prev = op3; - op3->Next = op2; - - outrec->Pts = op; - OutRec* outrec2 = CreateOutRec(); - outrec2->Pts = op2; - UpdateOutPtIdxs(*outrec2); - if (Poly2ContainsPoly1(outrec2->Pts, outrec->Pts)) - { - //OutRec2 is contained by OutRec1 ... - outrec2->IsHole = !outrec->IsHole; - outrec2->FirstLeft = outrec; - if (m_UsingPolyTree) FixupFirstLefts2(outrec2, outrec); - } - else - if (Poly2ContainsPoly1(outrec->Pts, outrec2->Pts)) - { - //OutRec1 is contained by OutRec2 ... - outrec2->IsHole = outrec->IsHole; - outrec->IsHole = !outrec2->IsHole; - outrec2->FirstLeft = outrec->FirstLeft; - outrec->FirstLeft = outrec2; - if (m_UsingPolyTree) FixupFirstLefts2(outrec, outrec2); - } - else - { - //the 2 polygons are separate ... - outrec2->IsHole = outrec->IsHole; - outrec2->FirstLeft = outrec->FirstLeft; - if (m_UsingPolyTree) FixupFirstLefts1(outrec, outrec2); - } - op2 = op; //ie get ready for the Next iteration - } - op2 = op2->Next; - } - op = op->Next; - } - while (op != outrec->Pts); - } -} -//------------------------------------------------------------------------------ - -void ReversePath(Path& p) -{ - std::reverse(p.begin(), p.end()); -} -//------------------------------------------------------------------------------ - -void ReversePaths(Paths& p) -{ - for (Paths::size_type i = 0; i < p.size(); ++i) - ReversePath(p[i]); -} -//------------------------------------------------------------------------------ - -void SimplifyPolygon(const Path &in_poly, Paths &out_polys, PolyFillType fillType) -{ - Clipper c; - c.StrictlySimple(true); - c.AddPath(in_poly, ptSubject, true); - c.Execute(ctUnion, out_polys, fillType, fillType); -} -//------------------------------------------------------------------------------ - -void SimplifyPolygons(const Paths &in_polys, Paths &out_polys, PolyFillType fillType) -{ - Clipper c; - c.StrictlySimple(true); - c.AddPaths(in_polys, ptSubject, true); - c.Execute(ctUnion, out_polys, fillType, fillType); -} -//------------------------------------------------------------------------------ - -void SimplifyPolygons(Paths &polys, PolyFillType fillType) -{ - SimplifyPolygons(polys, polys, fillType); -} -//------------------------------------------------------------------------------ - -inline double DistanceSqrd(const IntPoint& pt1, const IntPoint& pt2) -{ - double Dx = ((double)pt1.X - pt2.X); - double dy = ((double)pt1.Y - pt2.Y); - return (Dx*Dx + dy*dy); -} -//------------------------------------------------------------------------------ - -double DistanceFromLineSqrd( - const IntPoint& pt, const IntPoint& ln1, const IntPoint& ln2) -{ - //The equation of a line in general form (Ax + By + C = 0) - //given 2 points (x�,y�) & (x�,y�) is ... - //(y� - y�)x + (x� - x�)y + (y� - y�)x� - (x� - x�)y� = 0 - //A = (y� - y�); B = (x� - x�); C = (y� - y�)x� - (x� - x�)y� - //perpendicular distance of point (x�,y�) = (Ax� + By� + C)/Sqrt(A� + B�) - //see http://en.wikipedia.org/wiki/Perpendicular_distance - double A = double(ln1.Y - ln2.Y); - double B = double(ln2.X - ln1.X); - double C = A * ln1.X + B * ln1.Y; - C = A * pt.X + B * pt.Y - C; - return (C * C) / (A * A + B * B); -} -//--------------------------------------------------------------------------- - -bool SlopesNearCollinear(const IntPoint& pt1, - const IntPoint& pt2, const IntPoint& pt3, double distSqrd) -{ - //this function is more accurate when the point that's geometrically - //between the other 2 points is the one that's tested for distance. - //ie makes it more likely to pick up 'spikes' ... - if (Abs(pt1.X - pt2.X) > Abs(pt1.Y - pt2.Y)) - { - if ((pt1.X > pt2.X) == (pt1.X < pt3.X)) - return DistanceFromLineSqrd(pt1, pt2, pt3) < distSqrd; - else if ((pt2.X > pt1.X) == (pt2.X < pt3.X)) - return DistanceFromLineSqrd(pt2, pt1, pt3) < distSqrd; - else - return DistanceFromLineSqrd(pt3, pt1, pt2) < distSqrd; - } - else - { - if ((pt1.Y > pt2.Y) == (pt1.Y < pt3.Y)) - return DistanceFromLineSqrd(pt1, pt2, pt3) < distSqrd; - else if ((pt2.Y > pt1.Y) == (pt2.Y < pt3.Y)) - return DistanceFromLineSqrd(pt2, pt1, pt3) < distSqrd; - else - return DistanceFromLineSqrd(pt3, pt1, pt2) < distSqrd; - } -} -//------------------------------------------------------------------------------ - -bool PointsAreClose(IntPoint pt1, IntPoint pt2, double distSqrd) -{ - double Dx = (double)pt1.X - pt2.X; - double dy = (double)pt1.Y - pt2.Y; - return ((Dx * Dx) + (dy * dy) <= distSqrd); -} -//------------------------------------------------------------------------------ - -OutPt* ExcludeOp(OutPt* op) -{ - OutPt* result = op->Prev; - result->Next = op->Next; - op->Next->Prev = result; - result->Idx = 0; - return result; -} -//------------------------------------------------------------------------------ - -void CleanPolygon(const Path& in_poly, Path& out_poly, double distance) -{ - //distance = proximity in units/pixels below which vertices - //will be stripped. Default ~= sqrt(2). - - size_t size = in_poly.size(); - - if (size == 0) - { - out_poly.clear(); - return; - } - - OutPt* outPts = new OutPt[size]; - for (size_t i = 0; i < size; ++i) - { - outPts[i].Pt = in_poly[i]; - outPts[i].Next = &outPts[(i + 1) % size]; - outPts[i].Next->Prev = &outPts[i]; - outPts[i].Idx = 0; - } - - double distSqrd = distance * distance; - OutPt* op = &outPts[0]; - while (op->Idx == 0 && op->Next != op->Prev) - { - if (PointsAreClose(op->Pt, op->Prev->Pt, distSqrd)) - { - op = ExcludeOp(op); - size--; - } - else if (PointsAreClose(op->Prev->Pt, op->Next->Pt, distSqrd)) - { - ExcludeOp(op->Next); - op = ExcludeOp(op); - size -= 2; - } - else if (SlopesNearCollinear(op->Prev->Pt, op->Pt, op->Next->Pt, distSqrd)) - { - op = ExcludeOp(op); - size--; - } - else - { - op->Idx = 1; - op = op->Next; - } - } - - if (size < 3) size = 0; - out_poly.resize(size); - for (size_t i = 0; i < size; ++i) - { - out_poly[i] = op->Pt; - op = op->Next; - } - delete [] outPts; -} -//------------------------------------------------------------------------------ - -void CleanPolygon(Path& poly, double distance) -{ - CleanPolygon(poly, poly, distance); -} -//------------------------------------------------------------------------------ - -void CleanPolygons(const Paths& in_polys, Paths& out_polys, double distance) -{ - out_polys.resize(in_polys.size()); - for (Paths::size_type i = 0; i < in_polys.size(); ++i) - CleanPolygon(in_polys[i], out_polys[i], distance); -} -//------------------------------------------------------------------------------ - -void CleanPolygons(Paths& polys, double distance) -{ - CleanPolygons(polys, polys, distance); -} -//------------------------------------------------------------------------------ - -void Minkowski(const Path& poly, const Path& path, - Paths& solution, bool isSum, bool isClosed) -{ - int delta = (isClosed ? 1 : 0); - size_t polyCnt = poly.size(); - size_t pathCnt = path.size(); - Paths pp; - pp.reserve(pathCnt); - if (isSum) - for (size_t i = 0; i < pathCnt; ++i) - { - Path p; - p.reserve(polyCnt); - for (size_t j = 0; j < poly.size(); ++j) - p.push_back(IntPoint(path[i].X + poly[j].X, path[i].Y + poly[j].Y)); - pp.push_back(p); - } - else - for (size_t i = 0; i < pathCnt; ++i) - { - Path p; - p.reserve(polyCnt); - for (size_t j = 0; j < poly.size(); ++j) - p.push_back(IntPoint(path[i].X - poly[j].X, path[i].Y - poly[j].Y)); - pp.push_back(p); - } - - solution.clear(); - solution.reserve((pathCnt + delta) * (polyCnt + 1)); - for (size_t i = 0; i < pathCnt - 1 + delta; ++i) - for (size_t j = 0; j < polyCnt; ++j) - { - Path quad; - quad.reserve(4); - quad.push_back(pp[i % pathCnt][j % polyCnt]); - quad.push_back(pp[(i + 1) % pathCnt][j % polyCnt]); - quad.push_back(pp[(i + 1) % pathCnt][(j + 1) % polyCnt]); - quad.push_back(pp[i % pathCnt][(j + 1) % polyCnt]); - if (!Orientation(quad)) ReversePath(quad); - solution.push_back(quad); - } -} -//------------------------------------------------------------------------------ - -void MinkowskiSum(const Path& pattern, const Path& path, Paths& solution, bool pathIsClosed) -{ - Minkowski(pattern, path, solution, true, pathIsClosed); - Clipper c; - c.AddPaths(solution, ptSubject, true); - c.Execute(ctUnion, solution, pftNonZero, pftNonZero); -} -//------------------------------------------------------------------------------ - -void TranslatePath(const Path& input, Path& output, const IntPoint delta) -{ - //precondition: input != output - output.resize(input.size()); - for (size_t i = 0; i < input.size(); ++i) - output[i] = IntPoint(input[i].X + delta.X, input[i].Y + delta.Y); -} -//------------------------------------------------------------------------------ - -void MinkowskiSum(const Path& pattern, const Paths& paths, Paths& solution, bool pathIsClosed) -{ - Clipper c; - for (size_t i = 0; i < paths.size(); ++i) - { - Paths tmp; - Minkowski(pattern, paths[i], tmp, true, pathIsClosed); - c.AddPaths(tmp, ptSubject, true); - if (pathIsClosed) - { - Path tmp2; - TranslatePath(paths[i], tmp2, pattern[0]); - c.AddPath(tmp2, ptClip, true); - } - } - c.Execute(ctUnion, solution, pftNonZero, pftNonZero); -} -//------------------------------------------------------------------------------ - -void MinkowskiDiff(const Path& poly1, const Path& poly2, Paths& solution) -{ - Minkowski(poly1, poly2, solution, false, true); - Clipper c; - c.AddPaths(solution, ptSubject, true); - c.Execute(ctUnion, solution, pftNonZero, pftNonZero); -} -//------------------------------------------------------------------------------ - -enum NodeType {ntAny, ntOpen, ntClosed}; - -void AddPolyNodeToPaths(const PolyNode& polynode, NodeType nodetype, Paths& paths) -{ - bool match = true; - if (nodetype == ntClosed) match = !polynode.IsOpen(); - else if (nodetype == ntOpen) return; - - if (!polynode.Contour.empty() && match) - paths.push_back(polynode.Contour); - for (int i = 0; i < polynode.ChildCount(); ++i) - AddPolyNodeToPaths(*polynode.Childs[i], nodetype, paths); -} -//------------------------------------------------------------------------------ - -void PolyTreeToPaths(const PolyTree& polytree, Paths& paths) -{ - paths.resize(0); - paths.reserve(polytree.Total()); - AddPolyNodeToPaths(polytree, ntAny, paths); -} -//------------------------------------------------------------------------------ - -void ClosedPathsFromPolyTree(const PolyTree& polytree, Paths& paths) -{ - paths.resize(0); - paths.reserve(polytree.Total()); - AddPolyNodeToPaths(polytree, ntClosed, paths); -} -//------------------------------------------------------------------------------ - -void OpenPathsFromPolyTree(PolyTree& polytree, Paths& paths) -{ - paths.resize(0); - paths.reserve(polytree.Total()); - //Open paths are top level only, so ... - for (int i = 0; i < polytree.ChildCount(); ++i) - if (polytree.Childs[i]->IsOpen()) - paths.push_back(polytree.Childs[i]->Contour); -} -//------------------------------------------------------------------------------ - -std::ostream& operator <<(std::ostream &s, const IntPoint &p) -{ - s << "(" << p.X << "," << p.Y << ")"; - return s; -} -//------------------------------------------------------------------------------ - -std::ostream& operator <<(std::ostream &s, const Path &p) -{ - if (p.empty()) return s; - Path::size_type last = p.size() -1; - for (Path::size_type i = 0; i < last; i++) - s << "(" << p[i].X << "," << p[i].Y << "), "; - s << "(" << p[last].X << "," << p[last].Y << ")\n"; - return s; -} -//------------------------------------------------------------------------------ - -std::ostream& operator <<(std::ostream &s, const Paths &p) -{ - for (Paths::size_type i = 0; i < p.size(); i++) - s << p[i]; - s << "\n"; - return s; -} -//------------------------------------------------------------------------------ - -} //ClipperLib namespace diff --git a/deploy/lite/utils/clipper.hpp b/deploy/lite/utils/clipper.hpp deleted file mode 100755 index df1f8137d4a2d02bbd2fe3f58a8fd3a71f5219ed..0000000000000000000000000000000000000000 --- a/deploy/lite/utils/clipper.hpp +++ /dev/null @@ -1,406 +0,0 @@ -/******************************************************************************* -* * -* Author : Angus Johnson * -* Version : 6.4.2 * -* Date : 27 February 2017 * -* Website : http://www.angusj.com * -* Copyright : Angus Johnson 2010-2017 * -* * -* License: * -* Use, modification & distribution is subject to Boost Software License Ver 1. * -* http://www.boost.org/LICENSE_1_0.txt * -* * -* Attributions: * -* The code in this library is an extension of Bala Vatti's clipping algorithm: * -* "A generic solution to polygon clipping" * -* Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63. * -* http://portal.acm.org/citation.cfm?id=129906 * -* * -* Computer graphics and geometric modeling: implementation and algorithms * -* By Max K. Agoston * -* Springer; 1 edition (January 4, 2005) * -* http://books.google.com/books?q=vatti+clipping+agoston * -* * -* See also: * -* "Polygon Offsetting by Computing Winding Numbers" * -* Paper no. DETC2005-85513 pp. 565-575 * -* ASME 2005 International Design Engineering Technical Conferences * -* and Computers and Information in Engineering Conference (IDETC/CIE2005) * -* September 24-28, 2005 , Long Beach, California, USA * -* http://www.me.berkeley.edu/~mcmains/pubs/DAC05OffsetPolygon.pdf * -* * -*******************************************************************************/ - -#ifndef clipper_hpp -#define clipper_hpp - -#define CLIPPER_VERSION "6.4.2" - -//use_int32: When enabled 32bit ints are used instead of 64bit ints. This -//improve performance but coordinate values are limited to the range +/- 46340 -//#define use_int32 - -//use_xyz: adds a Z member to IntPoint. Adds a minor cost to perfomance. -//#define use_xyz - -//use_lines: Enables line clipping. Adds a very minor cost to performance. -#define use_lines - -//use_deprecated: Enables temporary support for the obsolete functions -//#define use_deprecated - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -namespace ClipperLib { - -enum ClipType { ctIntersection, ctUnion, ctDifference, ctXor }; -enum PolyType { ptSubject, ptClip }; -//By far the most widely used winding rules for polygon filling are -//EvenOdd & NonZero (GDI, GDI+, XLib, OpenGL, Cairo, AGG, Quartz, SVG, Gr32) -//Others rules include Positive, Negative and ABS_GTR_EQ_TWO (only in OpenGL) -//see http://glprogramming.com/red/chapter11.html -enum PolyFillType { pftEvenOdd, pftNonZero, pftPositive, pftNegative }; - -#ifdef use_int32 - typedef int cInt; - static cInt const loRange = 0x7FFF; - static cInt const hiRange = 0x7FFF; -#else - typedef signed long long cInt; - static cInt const loRange = 0x3FFFFFFF; - static cInt const hiRange = 0x3FFFFFFFFFFFFFFFLL; - typedef signed long long long64; //used by Int128 class - typedef unsigned long long ulong64; - -#endif - -struct IntPoint { - cInt X; - cInt Y; -#ifdef use_xyz - cInt Z; - IntPoint(cInt x = 0, cInt y = 0, cInt z = 0): X(x), Y(y), Z(z) {}; -#else - IntPoint(cInt x = 0, cInt y = 0): X(x), Y(y) {}; -#endif - - friend inline bool operator== (const IntPoint& a, const IntPoint& b) - { - return a.X == b.X && a.Y == b.Y; - } - friend inline bool operator!= (const IntPoint& a, const IntPoint& b) - { - return a.X != b.X || a.Y != b.Y; - } -}; -//------------------------------------------------------------------------------ - -typedef std::vector< IntPoint > Path; -typedef std::vector< Path > Paths; - -inline Path& operator <<(Path& poly, const IntPoint& p) {poly.push_back(p); return poly;} -inline Paths& operator <<(Paths& polys, const Path& p) {polys.push_back(p); return polys;} - -std::ostream& operator <<(std::ostream &s, const IntPoint &p); -std::ostream& operator <<(std::ostream &s, const Path &p); -std::ostream& operator <<(std::ostream &s, const Paths &p); - -struct DoublePoint -{ - double X; - double Y; - DoublePoint(double x = 0, double y = 0) : X(x), Y(y) {} - DoublePoint(IntPoint ip) : X((double)ip.X), Y((double)ip.Y) {} -}; -//------------------------------------------------------------------------------ - -#ifdef use_xyz -typedef void (*ZFillCallback)(IntPoint& e1bot, IntPoint& e1top, IntPoint& e2bot, IntPoint& e2top, IntPoint& pt); -#endif - -enum InitOptions {ioReverseSolution = 1, ioStrictlySimple = 2, ioPreserveCollinear = 4}; -enum JoinType {jtSquare, jtRound, jtMiter}; -enum EndType {etClosedPolygon, etClosedLine, etOpenButt, etOpenSquare, etOpenRound}; - -class PolyNode; -typedef std::vector< PolyNode* > PolyNodes; - -class PolyNode -{ -public: - PolyNode(); - virtual ~PolyNode(){}; - Path Contour; - PolyNodes Childs; - PolyNode* Parent; - PolyNode* GetNext() const; - bool IsHole() const; - bool IsOpen() const; - int ChildCount() const; -private: - //PolyNode& operator =(PolyNode& other); - unsigned Index; //node index in Parent.Childs - bool m_IsOpen; - JoinType m_jointype; - EndType m_endtype; - PolyNode* GetNextSiblingUp() const; - void AddChild(PolyNode& child); - friend class Clipper; //to access Index - friend class ClipperOffset; -}; - -class PolyTree: public PolyNode -{ -public: - ~PolyTree(){ Clear(); }; - PolyNode* GetFirst() const; - void Clear(); - int Total() const; -private: - //PolyTree& operator =(PolyTree& other); - PolyNodes AllNodes; - friend class Clipper; //to access AllNodes -}; - -bool Orientation(const Path &poly); -double Area(const Path &poly); -int PointInPolygon(const IntPoint &pt, const Path &path); - -void SimplifyPolygon(const Path &in_poly, Paths &out_polys, PolyFillType fillType = pftEvenOdd); -void SimplifyPolygons(const Paths &in_polys, Paths &out_polys, PolyFillType fillType = pftEvenOdd); -void SimplifyPolygons(Paths &polys, PolyFillType fillType = pftEvenOdd); - -void CleanPolygon(const Path& in_poly, Path& out_poly, double distance = 1.415); -void CleanPolygon(Path& poly, double distance = 1.415); -void CleanPolygons(const Paths& in_polys, Paths& out_polys, double distance = 1.415); -void CleanPolygons(Paths& polys, double distance = 1.415); - -void MinkowskiSum(const Path& pattern, const Path& path, Paths& solution, bool pathIsClosed); -void MinkowskiSum(const Path& pattern, const Paths& paths, Paths& solution, bool pathIsClosed); -void MinkowskiDiff(const Path& poly1, const Path& poly2, Paths& solution); - -void PolyTreeToPaths(const PolyTree& polytree, Paths& paths); -void ClosedPathsFromPolyTree(const PolyTree& polytree, Paths& paths); -void OpenPathsFromPolyTree(PolyTree& polytree, Paths& paths); - -void ReversePath(Path& p); -void ReversePaths(Paths& p); - -struct IntRect { cInt left; cInt top; cInt right; cInt bottom; }; - -//enums that are used internally ... -enum EdgeSide { esLeft = 1, esRight = 2}; - -//forward declarations (for stuff used internally) ... -struct TEdge; -struct IntersectNode; -struct LocalMinimum; -struct OutPt; -struct OutRec; -struct Join; - -typedef std::vector < OutRec* > PolyOutList; -typedef std::vector < TEdge* > EdgeList; -typedef std::vector < Join* > JoinList; -typedef std::vector < IntersectNode* > IntersectList; - -//------------------------------------------------------------------------------ - -//ClipperBase is the ancestor to the Clipper class. It should not be -//instantiated directly. This class simply abstracts the conversion of sets of -//polygon coordinates into edge objects that are stored in a LocalMinima list. -class ClipperBase -{ -public: - ClipperBase(); - virtual ~ClipperBase(); - virtual bool AddPath(const Path &pg, PolyType PolyTyp, bool Closed); - bool AddPaths(const Paths &ppg, PolyType PolyTyp, bool Closed); - virtual void Clear(); - IntRect GetBounds(); - bool PreserveCollinear() {return m_PreserveCollinear;}; - void PreserveCollinear(bool value) {m_PreserveCollinear = value;}; -protected: - void DisposeLocalMinimaList(); - TEdge* AddBoundsToLML(TEdge *e, bool IsClosed); - virtual void Reset(); - TEdge* ProcessBound(TEdge* E, bool IsClockwise); - void InsertScanbeam(const cInt Y); - bool PopScanbeam(cInt &Y); - bool LocalMinimaPending(); - bool PopLocalMinima(cInt Y, const LocalMinimum *&locMin); - OutRec* CreateOutRec(); - void DisposeAllOutRecs(); - void DisposeOutRec(PolyOutList::size_type index); - void SwapPositionsInAEL(TEdge *edge1, TEdge *edge2); - void DeleteFromAEL(TEdge *e); - void UpdateEdgeIntoAEL(TEdge *&e); - - typedef std::vector MinimaList; - MinimaList::iterator m_CurrentLM; - MinimaList m_MinimaList; - - bool m_UseFullRange; - EdgeList m_edges; - bool m_PreserveCollinear; - bool m_HasOpenPaths; - PolyOutList m_PolyOuts; - TEdge *m_ActiveEdges; - - typedef std::priority_queue ScanbeamList; - ScanbeamList m_Scanbeam; -}; -//------------------------------------------------------------------------------ - -class Clipper : public virtual ClipperBase -{ -public: - Clipper(int initOptions = 0); - bool Execute(ClipType clipType, - Paths &solution, - PolyFillType fillType = pftEvenOdd); - bool Execute(ClipType clipType, - Paths &solution, - PolyFillType subjFillType, - PolyFillType clipFillType); - bool Execute(ClipType clipType, - PolyTree &polytree, - PolyFillType fillType = pftEvenOdd); - bool Execute(ClipType clipType, - PolyTree &polytree, - PolyFillType subjFillType, - PolyFillType clipFillType); - bool ReverseSolution() { return m_ReverseOutput; }; - void ReverseSolution(bool value) {m_ReverseOutput = value;}; - bool StrictlySimple() {return m_StrictSimple;}; - void StrictlySimple(bool value) {m_StrictSimple = value;}; - //set the callback function for z value filling on intersections (otherwise Z is 0) -#ifdef use_xyz - void ZFillFunction(ZFillCallback zFillFunc); -#endif -protected: - virtual bool ExecuteInternal(); -private: - JoinList m_Joins; - JoinList m_GhostJoins; - IntersectList m_IntersectList; - ClipType m_ClipType; - typedef std::list MaximaList; - MaximaList m_Maxima; - TEdge *m_SortedEdges; - bool m_ExecuteLocked; - PolyFillType m_ClipFillType; - PolyFillType m_SubjFillType; - bool m_ReverseOutput; - bool m_UsingPolyTree; - bool m_StrictSimple; -#ifdef use_xyz - ZFillCallback m_ZFill; //custom callback -#endif - void SetWindingCount(TEdge& edge); - bool IsEvenOddFillType(const TEdge& edge) const; - bool IsEvenOddAltFillType(const TEdge& edge) const; - void InsertLocalMinimaIntoAEL(const cInt botY); - void InsertEdgeIntoAEL(TEdge *edge, TEdge* startEdge); - void AddEdgeToSEL(TEdge *edge); - bool PopEdgeFromSEL(TEdge *&edge); - void CopyAELToSEL(); - void DeleteFromSEL(TEdge *e); - void SwapPositionsInSEL(TEdge *edge1, TEdge *edge2); - bool IsContributing(const TEdge& edge) const; - bool IsTopHorz(const cInt XPos); - void DoMaxima(TEdge *e); - void ProcessHorizontals(); - void ProcessHorizontal(TEdge *horzEdge); - void AddLocalMaxPoly(TEdge *e1, TEdge *e2, const IntPoint &pt); - OutPt* AddLocalMinPoly(TEdge *e1, TEdge *e2, const IntPoint &pt); - OutRec* GetOutRec(int idx); - void AppendPolygon(TEdge *e1, TEdge *e2); - void IntersectEdges(TEdge *e1, TEdge *e2, IntPoint &pt); - OutPt* AddOutPt(TEdge *e, const IntPoint &pt); - OutPt* GetLastOutPt(TEdge *e); - bool ProcessIntersections(const cInt topY); - void BuildIntersectList(const cInt topY); - void ProcessIntersectList(); - void ProcessEdgesAtTopOfScanbeam(const cInt topY); - void BuildResult(Paths& polys); - void BuildResult2(PolyTree& polytree); - void SetHoleState(TEdge *e, OutRec *outrec); - void DisposeIntersectNodes(); - bool FixupIntersectionOrder(); - void FixupOutPolygon(OutRec &outrec); - void FixupOutPolyline(OutRec &outrec); - bool IsHole(TEdge *e); - bool FindOwnerFromSplitRecs(OutRec &outRec, OutRec *&currOrfl); - void FixHoleLinkage(OutRec &outrec); - void AddJoin(OutPt *op1, OutPt *op2, const IntPoint offPt); - void ClearJoins(); - void ClearGhostJoins(); - void AddGhostJoin(OutPt *op, const IntPoint offPt); - bool JoinPoints(Join *j, OutRec* outRec1, OutRec* outRec2); - void JoinCommonEdges(); - void DoSimplePolygons(); - void FixupFirstLefts1(OutRec* OldOutRec, OutRec* NewOutRec); - void FixupFirstLefts2(OutRec* InnerOutRec, OutRec* OuterOutRec); - void FixupFirstLefts3(OutRec* OldOutRec, OutRec* NewOutRec); -#ifdef use_xyz - void SetZ(IntPoint& pt, TEdge& e1, TEdge& e2); -#endif -}; -//------------------------------------------------------------------------------ - -class ClipperOffset -{ -public: - ClipperOffset(double miterLimit = 2.0, double roundPrecision = 0.25); - ~ClipperOffset(); - void AddPath(const Path& path, JoinType joinType, EndType endType); - void AddPaths(const Paths& paths, JoinType joinType, EndType endType); - void Execute(Paths& solution, double delta); - void Execute(PolyTree& solution, double delta); - void Clear(); - double MiterLimit; - double ArcTolerance; -private: - Paths m_destPolys; - Path m_srcPoly; - Path m_destPoly; - std::vector m_normals; - double m_delta, m_sinA, m_sin, m_cos; - double m_miterLim, m_StepsPerRad; - IntPoint m_lowest; - PolyNode m_polyNodes; - - void FixOrientations(); - void DoOffset(double delta); - void OffsetPoint(int j, int& k, JoinType jointype); - void DoSquare(int j, int k); - void DoMiter(int j, int k, double r); - void DoRound(int j, int k); -}; -//------------------------------------------------------------------------------ - -class clipperException : public std::exception -{ - public: - clipperException(const char* description): m_descr(description) {} - virtual ~clipperException() throw() {} - virtual const char* what() const throw() {return m_descr.c_str();} - private: - std::string m_descr; -}; -//------------------------------------------------------------------------------ - -} //ClipperLib namespace - -#endif //clipper_hpp - - diff --git a/deploy/lite/utils/crnn_process.cpp b/deploy/lite/utils/crnn_process.cpp deleted file mode 100644 index c48ab8256ed82bba60b2b6f507a062c4111f174a..0000000000000000000000000000000000000000 --- a/deploy/lite/utils/crnn_process.cpp +++ /dev/null @@ -1,168 +0,0 @@ -// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include -#include "opencv2/core.hpp" -#include "opencv2/imgcodecs.hpp" -#include "opencv2/imgproc.hpp" -#include "math.h" - -#include -#include -#include - -#define character_type "ch" -#define max_dict_length 6624 -const std::vector rec_image_shape {3, 32, 320}; - - -cv::Mat crnn_resize_norm_img(cv::Mat img, float wh_ratio){ - int imgC, imgH, imgW; - imgC = rec_image_shape[0]; - imgW = rec_image_shape[2]; - imgH = rec_image_shape[1]; - - if (character_type=="ch") - imgW = int(32*wh_ratio); - - float ratio = float(img.cols)/float(img.rows); - int resize_w, resize_h; - if (ceilf(imgH*ratio)>imgW) - resize_w = imgW; - else - resize_w = int(ceilf(imgH*ratio)); - cv::Mat resize_img; - cv::resize(img, resize_img, cv::Size(resize_w, imgH),0.f, 0.f, cv::INTER_CUBIC); - - resize_img.convertTo(resize_img, CV_32FC3, 1 / 255.f); - - for (int h=0; h< resize_img.rows; h++){ - for (int w=0; w< resize_img.cols; w++){ - resize_img.at(h, w)[0] = (resize_img.at(h, w)[0] - 0.5) *2; - resize_img.at(h, w)[1] = (resize_img.at(h, w)[1] - 0.5) *2; - resize_img.at(h, w)[2] = (resize_img.at(h, w)[2] - 0.5) *2; - } - } - - cv::Mat dist; - cv::copyMakeBorder(resize_img, dist, 0, 0, 0, int(imgW-resize_w), cv::BORDER_CONSTANT, {0, 0, 0}); - - return dist; - -} - -cv::Mat crnn_resize_img(cv::Mat img, float wh_ratio){ - int imgC, imgH, imgW; - imgC = rec_image_shape[0]; - imgW = rec_image_shape[2]; - imgH = rec_image_shape[1]; - - if (character_type=="ch") - imgW = int(32*wh_ratio); - - float ratio = float(img.cols)/float(img.rows); - int resize_w, resize_h; - if (ceilf(imgH*ratio)>imgW) - resize_w = imgW; - else - resize_w = int(ceilf(imgH*ratio)); - cv::Mat resize_img; - cv::resize(img, resize_img, cv::Size(resize_w, imgH),0.f, 0.f, cv::INTER_LINEAR); - - return resize_img; -} - -std::basic_string, std::allocator> * read_dict(std::string path){ - - std::ifstream ifs; - std::string charactors[max_dict_length]; - - ifs.open(path); - if (!ifs.is_open()) - { - std::cout<<"open file "<> box){ - cv::Mat image; - srcimage.copyTo(image); - std::vector> points = box; - - int x_collect[4] = {box[0][0], box[1][0], box[2][0], box[3][0]}; - int y_collect[4] = {box[0][1], box[1][1], box[2][1], box[3][1]}; - int left = int(*std::min_element(x_collect, x_collect+4)); - int right = int(*std::max_element(x_collect, x_collect+4)); - int top = int(*std::min_element(y_collect, y_collect+4)); - int bottom = int(*std::max_element(y_collect, y_collect+4)); - - cv::Mat img_crop; - image(cv::Rect(left, top, right-left, bottom-top)).copyTo(img_crop); - - for(int i=0; i= float(dst_img.cols)*1.5){ - cv::Mat srcCopy = cv::Mat(dst_img.rows, dst_img.cols, dst_img.depth()); - cv::transpose(dst_img, srcCopy); - cv::flip(srcCopy, srcCopy, 0); - return srcCopy; - } - else{ - return dst_img; - } - -} - -template -inline size_t argmax(ForwardIterator first, ForwardIterator last) -{ - return std::distance(first, std::max_element(first, last)); -} \ No newline at end of file diff --git a/deploy/lite/utils/db_post_process.cpp b/deploy/lite/utils/db_post_process.cpp deleted file mode 100644 index 9f831605d9aa89e7aa1154c785c851d034d5ff0c..0000000000000000000000000000000000000000 --- a/deploy/lite/utils/db_post_process.cpp +++ /dev/null @@ -1,370 +0,0 @@ -// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include -#include -#include "opencv2/core.hpp" -#include "opencv2/imgcodecs.hpp" -#include "opencv2/imgproc.hpp" -#include "clipper.hpp" -#include "clipper.cpp" - - -void getcontourarea(float ** box, float unclip_ratio, float & distance){ - int pts_num=4; - float area = 0.0f; - float dist = 0.0f; - for (int i=0; i points; - - for (int j=0; j(i, j); - } - } - - return array; -} - -void quickSort(float ** s, int l, int r) -{ - if (l < r) - { - int i = l, j = r; - float x = s[l][0]; - float * xp = s[l]; - while (i < j) - { - while(i < j && s[j][0]>= x) - j--; - if(i < j) - std::swap(s[i++], s[j]); - while(i < j && s[i][0]< x) - i++; - if(i < j) - std::swap(s[j--], s[i]); - } - s[i] = xp; - quickSort(s, l, i - 1); - quickSort(s, i + 1, r); - } -} - -void quickSort_vector(std::vector> & box, int l, int r, int axis){ - if (l < r){ - int i = l, j = r; - int x = box[l][axis]; - std::vector xp (box[l]); - while (i < j) - { - while(i < j && box[j][axis]>= x) - j--; - if(i < j) - std::swap(box[i++], box[j]); - while(i < j && box[i][axis]< x) - i++; - if(i < j) - std::swap(box[j--], box[i]); - } - box[i] = xp; - quickSort_vector(box, l, i - 1, axis); - quickSort_vector(box, i + 1, r, axis); - } -} - -std::vector> order_points_clockwise(std::vector> pts){ - std::vector> box = pts; - quickSort_vector(box, 0, int(box.size()-1), 0); - std::vector> leftmost = {box[0], box[1]}; - std::vector> rightmost = {box[2], box[3]}; - - if (leftmost[0][1]>leftmost[1][1]) - std::swap(leftmost[0], leftmost[1]); - - if (rightmost[0][1]> rightmost[1][1]) - std::swap(rightmost[0], rightmost[1]); - - std::vector> rect = {leftmost[0], rightmost[0], rightmost[1], leftmost[1]}; - return rect; -} - -float ** get_mini_boxes(cv::RotatedRect box, float & ssid){ - ssid = box.size.width>=box.size.height?box.size.height:box.size.width; - - cv::Mat points; - cv::boxPoints(box, points); - // sorted box points - auto array = Mat2Vec(points); - quickSort(array, 0, 3); - - float * idx1=array[0], *idx2=array[1], *idx3=array[2], *idx4=array[3]; - if (array[3][1]<=array[2][1]) { - idx2 = array[3]; - idx3 = array[2]; - } - else{ - idx2 = array[2]; - idx3 = array[3]; - } - if (array[1][1]<=array[0][1]){ - idx1 = array[1]; - idx4 = array[0]; - } - else{ - idx1 = array[0]; - idx4 = array[1]; - } - - array[0] = idx1; - array[1] = idx2; - array[2] = idx3; - array[3] = idx4; - - return array; -} - -template -T clamp(T x, T min, T max) -{ - if (x > max) - return max; - if (x < min) - return min; - return x; -} -float clampf(float x, float min, float max){ - if (x > max) - return max; - if (x < min) - return min; - return x; -} - - -float box_score_fast(float ** box_array, cv::Mat pred){ - auto array=box_array; - int width = pred.cols; - int height = pred.rows; - - float box_x[4]={array[0][0], array[1][0], array[2][0], array[3][0]}; - float box_y[4]={array[0][1], array[1][1], array[2][1], array[3][1]}; - - int xmin = clamp(int(std::floorf(*(std::min_element(box_x, box_x+4)))), 0, width - 1); - int xmax = clamp(int(std::ceilf(*(std::max_element(box_x, box_x+4)))), 0, width - 1); - int ymin = clamp(int(std::floorf(*(std::min_element(box_y, box_y+4)))), 0, height - 1); - int ymax = clamp(int(std::ceilf(*(std::max_element(box_y, box_y+4)))), 0, height - 1); - - cv::Mat mask; - mask = cv::Mat::zeros(ymax - ymin + 1, xmax - xmin + 1, CV_8UC1); - - cv::Point root_point[4]; - root_point[0] = cv::Point(int(array[0][0])-xmin, int(array[0][1])-ymin); - root_point[1] = cv::Point(int(array[1][0])-xmin, int(array[1][1])-ymin); - root_point[2] = cv::Point(int(array[2][0])-xmin, int(array[2][1])-ymin); - root_point[3] = cv::Point(int(array[3][0])-xmin, int(array[3][1])-ymin); - const cv::Point* ppt[1] = {root_point}; - int npt[] = {4}; - cv::fillPoly(mask, ppt, npt, 1, cv::Scalar(1)); - - cv::Mat croppedImg; - pred(cv::Rect(xmin, ymin, xmax-xmin+1,ymax-ymin+1)).copyTo(croppedImg); - - auto score = cv::mean(croppedImg, mask)[0]; - return score; -} - - -std::vector>> boxes_from_bitmap(const cv::Mat pred, const cv::Mat bitmap) { - const int min_size=3; - const int max_candidates = 1000; - const float box_thresh=0.5; - - int width = bitmap.cols; - int height = bitmap.rows; - - std::vector> contours; - std::vector hierarchy; - - cv::findContours(bitmap, contours, hierarchy, cv::RETR_LIST, cv::CHAIN_APPROX_SIMPLE); - - int num_contours = contours.size() >= max_candidates ? max_candidates : contours.size(); - - std::vector>> boxes; - - for (int _i = 0; _i < num_contours; _i++) { - float ssid; - cv::RotatedRect box = cv::minAreaRect(contours[_i]); - auto array = get_mini_boxes(box, ssid); - - auto box_for_unclip = array; - //end get_mini_box - - if (ssid< min_size) { - continue; - } - - float score; - score = box_score_fast(array, pred); - //end box_score_fast - if (score < box_thresh) - continue; - - - // start for unclip - cv::RotatedRect points = unclip(box_for_unclip); - // end for unclip - - cv::RotatedRect clipbox = points; - auto cliparray = get_mini_boxes(clipbox, ssid); - - if (ssid < min_size+2) continue; - - int dest_width=pred.cols; - int dest_height=pred.rows; - std::vector> intcliparray; - - for (int num_pt=0; num_pt<4; num_pt++){ - std::vector a { int( clampf(roundf(cliparray[num_pt][0]/float(width)*float(dest_width)), 0, float(dest_width)) ), - int( clampf(roundf(cliparray[num_pt][1]/float(height)*float(dest_height)), 0, float(dest_height)) )}; - intcliparray.push_back(a); - } - boxes.push_back(intcliparray); - - }//end for - return boxes; -} - -int _max(int a, int b){ - return a>=b?a:b; -} - -int _min(int a, int b){ - return a>=b?b:a; -} - -std::vector>> filter_tag_det_res(std::vector>> boxes, - float ratio_h, float ratio_w, cv::Mat srcimg){ - int oriimg_h = srcimg.rows; - int oriimg_w = srcimg.cols; - - std::vector>> root_points; - for (int n=0; n img_mean = {0.485, 0.456, 0.406}; - std::vector img_std = {0.229, 0.224, 0.225}; - - float trainData[imgh][imgw*imgc]; - - while (getline(in, line)) { - stringstream ss(line); - double x; - while (ss >> x) { -// trainData[i][j] = float(x) * img_std[j % 3] + img_mean[j % 3]; - trainData[i][j] = float(x); - j++; - } - i++; - j = 0; - } - - cv::Mat pred_map(imgh, imgw*imgc, CV_32FC1, (float *) trainData); - cv::Mat reshape_img = pred_map.reshape(imgc, imgh); - return reshape_img; -} - */ -//using namespace std; -// -//void writetxt(vector> data, std::string save_path){ -// -// ofstream fout(save_path); -// -// for (int i = 0; i < data.size(); i++) { -// for (int j=0; j< data[0].size(); j++){ -// fout << data[i][j] << " "; -// } -// fout << endl; -// } -// fout << endl; -// fout.close(); -//}