Update mainFunction.py

mainFunction.py

@@ -109,6 +109,12 @@ class MyWindow(QMainWindow,LogIn.Ui_LogIn):
             frame, hand_list = index_thumb_pt(frame, results)
             if hand_list['click']:
                 draw_character(self.gesture_lines, self.img_black)  #在黑底图片上将文字的各个点连起来，实现写字的功能
+                 if len(self.gesture_lines)>1 and p_to_p_distance(self.gesture_lines[-1],hand_list["pt"]) < 30:
+                    hand_list["pt"] = list(hand_list["pt"])
+                    hand_list["pt"][0] = int(self.gesture_lines[-1][0] + (hand_list["pt"][0] - self.gesture_lines[-1][0]) / 2)  # 平滑写字的移动
+                    hand_list["pt"][1] = int(self.gesture_lines[-1][1] + (hand_list["pt"][1] - self.gesture_lines[-1][1]) / 2)
+                    hand_list["pt"] = tuple(hand_list["pt"])
+
                 self.gesture_lines.append(hand_list["pt"])
 
         img_gray = cv2.cvtColor(self.img_black, cv2.COLOR_BGR2GRAY)
@@ -168,4 +174,4 @@ if __name__ == "__main__":
     MainWindow.center()
     MainWindow.add_shadow()
     MainWindow.show()
-    sys.exit(app.exec_())
\ No newline at end of file
+    sys.exit(app.exec_())