From e256bfb693f1a0a924352784dc4fa404b0df98d7 Mon Sep 17 00:00:00 2001 From: fengzewu Date: Tue, 27 Sep 2022 22:04:54 +0800 Subject: [PATCH] code check Signed-off-by: fengzewu --- .../reference/apis/js-apis-image.md | 153 +++++++++++------- 1 file changed, 93 insertions(+), 60 deletions(-) diff --git a/zh-cn/application-dev/reference/apis/js-apis-image.md b/zh-cn/application-dev/reference/apis/js-apis-image.md index d5acb8631f..4b59a38630 100644 --- a/zh-cn/application-dev/reference/apis/js-apis-image.md +++ b/zh-cn/application-dev/reference/apis/js-apis-image.md @@ -260,12 +260,7 @@ image.createPixelMap(color, opts) } pixelmap.writePixels(area).then(() => { - const readArea = { pixels: new ArrayBuffer(8), - offset: 0, - stride: 8, - // region.size.width + x < opts.width, region.size.height + y < opts.height - region: { size: { height: 1, width: 2 }, x: 0, y: 0 } - } + console.info('Succeeded to write pixelmap into the specified area.'); }) }).catch(error => { console.log('error: ' + error); @@ -290,17 +285,20 @@ writePixels(area: PositionArea, callback: AsyncCallback\): void **示例：** ```js -const area = new ArrayBuffer(400); +const area = { pixels: new ArrayBuffer(8), + offset: 0, + stride: 8, + region: { size: { height: 1, width: 2 }, x: 0, y: 0 } +} +let bufferArr = new Uint8Array(area.pixels); +for (var i = 0; i < bufferArr.length; i++) { + bufferArr[i] = i + 1; +} pixelmap.writePixels(area, (error) => { if (error != undefined) { console.info('Failed to write pixelmap into the specified area.'); } else { - const readArea = { - pixels: new ArrayBuffer(20), - offset: 0, - stride: 8, - region: { size: { height: 1, width: 2 }, x: 0, y: 0 }, - } + console.info('Succeeded to write pixelmap into the specified area.'); } }) ``` @@ -329,9 +327,11 @@ writeBufferToPixels(src: ArrayBuffer): Promise\ ```js const color = new ArrayBuffer(96); -const pixelMap = new ArrayBuffer(400); let bufferArr = new Uint8Array(color); -pixelMap.writeBufferToPixels(color).then(() => { +for (var i = 0; i < bufferArr.length; i++) { + bufferArr[i] = i + 1; +} +pixelmap.writeBufferToPixels(color).then(() => { console.log("Succeeded in writing data from a buffer to a PixelMap."); }).catch((err) => { console.error("Failed to write data from a buffer to a PixelMap."); @@ -357,9 +357,11 @@ writeBufferToPixels(src: ArrayBuffer, callback: AsyncCallback\): void ```js const color = new ArrayBuffer(96); -const pixelMap = new ArrayBuffer(400); let bufferArr = new Uint8Array(color); -pixelMap.writeBufferToPixels(color, function(err) { +for (var i = 0; i < bufferArr.length; i++) { + bufferArr[i] = i + 1; +} +pixelmap.writeBufferToPixels(color, function(err) { if (err) { console.error("Failed to write data from a buffer to a PixelMap."); return; @@ -386,12 +388,22 @@ getImageInfo(): Promise\ **示例：** ```js -const pixelMap = new ArrayBuffer(400); -pixelMap.getImageInfo().then(function(info) { - console.log("Succeeded in obtaining the image pixel map information."); -}).catch((err) => { - console.error("Failed to obtain the image pixel map information."); -}); +const color = new ArrayBuffer(96); +let opts = { editable: true, pixelFormat: 2, size: { height: 6, width: 8 } } +image.createPixelMap(color, opts).then(pixelmap => { + globalpixelmap = pixelmap; + if (pixelmap == undefined) { + console.error("Failed to obtain the image pixel map information."); + } + pixelmap.getImageInfo().then(imageInfo => { + if (imageInfo == undefined) { + console.error("Failed to obtain the image pixel map information."); + } + if (imageInfo.size.height == 4 && imageInfo.size.width == 6) { + console.log("Succeeded in obtaining the image pixel map information."); + } + }) +}) ``` ### getImageInfo7+ @@ -411,8 +423,21 @@ getImageInfo(callback: AsyncCallback\): void **示例:** ```js -pixelmap.getImageInfo((imageInfo) => { - console.log("Succeeded in obtaining the image pixel map information."); +const color = new ArrayBuffer(96); +let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } } +image.createPixelMap(color, opts, (err, pixelmap) => { + if (pixelmap == undefined) { + globalpixelmap = pixelmap; + console.error("Failed to obtain the image pixel map information."); + } + pixelmap.getImageInfo((err, imageInfo) => { + if (imageInfo == undefined) { + console.error("Failed to obtain the image pixel map information."); + } + if (imageInfo.size.height == 4 && imageInfo.size.width == 6) { + console.log("Succeeded in obtaining the image pixel map information."); + } + }) }) ``` @@ -499,9 +524,15 @@ opacity(rate: number, callback: AsyncCallback\): void **示例：** ```js -async function () { - await pixelMap.opacity(0.5); -} +var rate = 0.5; +pixelmap.opacity(rate, (err) => { + if (err) { + console.error("Failed to set opacity."); + return; + } else { + console.log("Succeeded in setting opacity."); + } +}) ``` ### opacity9+ @@ -528,7 +559,8 @@ opacity(rate: number): Promise\ ```js async function () { - await pixelMap.opacity(0.5); + var rate = 0.5; + await pixelmap.opacity(rate); } ``` @@ -549,12 +581,8 @@ createAlphaPixelmap(): Promise\ **示例：** ```js -pixelMap.createAlphaPixelmap(async (err, alphaPixelMap) => { - if (alphaPixelMap == undefined) { - console.info('Failed to obtain new pixel map.'); - } else { - console.info('Succeed in obtaining new pixel map.'); - } +async function () { + await pixelmap.createAlphaPixelmap(); }) ``` @@ -575,14 +603,13 @@ createAlphaPixelmap(callback: AsyncCallback\): void **示例：** ```js -let pixelMap = await imageSource.createPixelMap(); -if (pixelMap != undefined) { - pixelMap.createAlphaPixelmap(async (err, alphaPixelMap) => { - console.info('Failed to obtain new pixel map.'); - }) -} else { - console.info('Succeed in obtaining new pixel map.'); -} +pixelmap.createAlphaPixelmap((err, alphaPixelMap) => { + if (alphaPixelMap == undefined) { + console.info('Failed to obtain new pixel map.'); + } else { + console.info('Succeed in obtaining new pixel map.'); + } +}) ``` ### scale9+ @@ -605,7 +632,7 @@ scale(x: number, y: number, callback: AsyncCallback\): void ```js async function () { - await pixelMap.scale(2.0, 1.0); + await pixelmap.scale(2.0, 1.0); } ``` @@ -634,7 +661,7 @@ scale(x: number, y: number): Promise\ ```js async function () { - await pixelMap.scale(2.0, 1.0); + await pixelmap.scale(2.0, 1.0); } ``` @@ -658,7 +685,7 @@ translate(x: number, y: number, callback: AsyncCallback\): void ```js async function () { - await pixelMap.translate(3.0, 1.0); + await pixelmap.translate(3.0, 1.0); } ``` @@ -687,7 +714,7 @@ translate(x: number, y: number): Promise\ ```js async function () { - await pixelMap.translate(3.0, 1.0); + await pixelmap.translate(3.0, 1.0); } ``` @@ -710,7 +737,7 @@ rotate(angle: number, callback: AsyncCallback\): void ```js async function () { - await pixelMap.rotate(90.0); + await pixelmap.rotate(90.0); } ``` @@ -738,7 +765,7 @@ rotate(angle: number): Promise\ ```js async function () { - await pixelMap.rotate(90.0); + await pixelmap.rotate(90.0); } ``` @@ -762,7 +789,7 @@ flip(horizontal: boolean, vertical: boolean, callback: AsyncCallback\): vo ```js async function () { - await pixelMap.flip(false, true); + await pixelmap.flip(false, true); } ``` @@ -791,7 +818,7 @@ flip(horizontal: boolean, vertical: boolean): Promise\ ```js async function () { - await pixelMap.flip(false, true); + await pixelmap.flip(false, true); } ``` @@ -814,7 +841,7 @@ crop(region: Region, callback: AsyncCallback\): void ```js async function () { - await pixelMap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } }); + await pixelmap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } }); } ``` @@ -842,7 +869,7 @@ crop(region: Region): Promise\ ```js async function () { - await pixelMap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } }); + await pixelmap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } }); } ``` @@ -1008,7 +1035,7 @@ createImageSource(fd: number, options: SourceOptions): ImageSource ```js var sourceOptions = { sourceDensity: 120 }; -let imageSource = image.createImageSource(0, sourceOptions); +const imageSourceApi = image.createImageSource(0, sourceOptions); ``` ## image.createImageSource9+ @@ -1084,7 +1111,7 @@ createIncrementalSource(buf: ArrayBuffer): ImageSource ```js const buf = new ArrayBuffer(96); -const imageSourceApi = image.createIncrementalSource(buf); +const imageSourceIncrementalSApi = image.createIncrementalSource(buf); ``` ## image.createIncrementalSource9+ @@ -1112,7 +1139,7 @@ createIncrementalSource(buf: ArrayBuffer, options?: SourceOptions): ImageSource ```js const buf = new ArrayBuffer(96); -const imageSourceApi = image.createIncrementalSource(buf); +const imageSourceIncrementalSApi = image.createIncrementalSource(buf); ``` ## ImageSource @@ -1283,7 +1310,7 @@ getImageProperty(key:string, options: GetImagePropertyOptions, callback: AsyncCa **示例：** ```js -const property = new ArrayBuffer(400); +let property = { index: 0, defaultValue: '9999' } imageSourceApi.getImageProperty("BitsPerSample",property,(error,data) => { if(error) { console.log('Failed to get the value of the specified attribute key of the image.'); @@ -1478,7 +1505,15 @@ createPixelMap(options: DecodingOptions, callback: AsyncCallback\): vo **示例：** ```js -const decodingOptions = new ArrayBuffer(400); +let decodingOptions = { + sampleSize: 1, + editable: true, + desiredSize: { width: 1, height: 2 }, + rotate: 10, + desiredPixelFormat: 3, + desiredRegion: { size: { height: 1, width: 2 }, x: 0, y: 0 }, + index: 0 +}; imageSourceApi.createPixelMap(decodingOptions, pixelmap => { console.log('Succeeded in creating pixelmap object.'); }) @@ -1582,7 +1617,6 @@ packing(source: ImageSource, option: PackingOption, callback: AsyncCallback\ {}) ``` @@ -1611,7 +1645,6 @@ packing(source: ImageSource, option: PackingOption): Promise\ ```js let packOpts = { format:"image/jpeg", quality:98 } -const imageSourceApi = new ArrayBuffer(400); imagePackerApi.packing(imageSourceApi, packOpts) .then( data => { console.log('packing succeeded.'); -- GitLab