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@ -44,7 +44,7 @@ |
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<div class="col-md-3"> |
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<div class="imgCutDownBox" :style="'height:458px;'"> |
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<div class="imgCutDownBoxContainer" style="z-index: 2;"> |
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<img :src="imgSrc" v-if="!!imgSrc" alt="" style="z-index: 3000;"/> |
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<img :src="imgSrc" v-if="!!imgSrc" alt="" style="z-index: 3000;" /> |
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<span v-else class="imgCutDownTips">{{ 'block3.title8' }}</span> |
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</div> |
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@ -93,6 +93,7 @@ |
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</div> |
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</div> |
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</div> |
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<canvas id="myCanvas"></canvas> |
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</div> |
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</template> |
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@ -153,6 +154,27 @@ export default { |
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}; |
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}, |
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created() { |
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// 获取canvas元素 |
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// this.$nextTick(() => { |
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// let canvas = document.getElementById('myCanvas'); |
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// let ctx = canvas.getContext('2d'); |
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// // 创建一个新的图片对象 |
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// let img = new Image(); |
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// // 设置图片的源地址 |
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// img.src = this.cutImgSrc |
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// // 当图片加载完成时,执行此函数 |
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// img.onload = function () { |
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// canvas.width = img.width; |
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// canvas.height = img.height; |
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// // 在画布上绘制图片 |
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// console.log('img.width,img.height', img.width, img.height) |
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// ctx.drawImage(img, 0, 0); // 参数:图片对象,x坐标,y坐标 |
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// }; |
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// }) |
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}, |
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mounted() { |
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@ -181,7 +203,7 @@ export default { |
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}); |
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}) |
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.catch(err => { |
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this.$message.error({showClose:true,message:err}) |
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this.$message.error({ showClose: true, message: err }) |
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}) |
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}, |
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@ -196,7 +218,7 @@ export default { |
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// 清空事件 |
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// this.loadImg = false; |
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// this.imgSrc = ''; |
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console.log('this.imgSrc',this.imgSrc) |
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console.log('this.imgSrc', this.imgSrc) |
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}, |
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onPrintImg: function (res) { |
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@ -312,6 +334,73 @@ export default { |
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}, |
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convertImageToBase64: function (url) { |
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return new Promise((resolve, reject) => { |
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fetch(url, { |
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method: 'GET', |
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// mode: 'no-cors', |
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// headers: { |
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// 'Content-Type': 'application/json', // 确保这是服务器期望的格式 |
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// 'Authorization': 'Bearer ' + token, |
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// 'Access-Control-Allow-Origin': '*' |
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// } |
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}) |
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.then(response => { |
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if (!response.ok) { |
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console.log('response',response) |
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throw new Error('Network response was not ok ' + response.statusText); |
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} |
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return response.blob() |
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}) |
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.then(blob => createImageBitmap(blob)) |
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.then(imageBitmap => { |
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const canvas = document.createElement('canvas'); |
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const ctx = canvas.getContext('2d'); |
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canvas.width = imageBitmap.width; |
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canvas.height = imageBitmap.height; |
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ctx.drawImage(imageBitmap, 0, 0); |
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const dataUrl = canvas.toDataURL('image/png'); |
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console.log('dataUrl', dataUrl) |
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resolve(dataUrl) |
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}) |
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.catch(err => { |
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reject(err) |
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}) |
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}) |
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}, |
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convertImageToBase641: function (url) { |
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this.$nextTick(() => { |
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return new Promise((resolve, reject) => { |
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let canvas = document.getElementById('myCanvas'); |
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let ctx = canvas.getContext('2d'); |
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// 创建一个新的图片对象 |
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let img = new Image(); |
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// 设置跨域访问 |
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// img.crossOrigin = 'Anonymous'; |
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// 设置图片的源地址 |
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img.src = url |
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// 当图片加载完成时,执行此函数 |
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img.onload = function () { |
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canvas.width = img.width; |
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canvas.height = img.height; |
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// 在画布上绘制图片 |
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console.log('img.width,img.height', img.width, img.height) |
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ctx.drawImage(img, 0, 0); // 参数:图片对象,x坐标,y坐标 |
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let dataURL = canvas.toDataURL('image/png'); |
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console.log('dataURL', dataURL) |
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resolve(dataURL); |
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}; |
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}) |
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}) |
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}, |
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convertImageToBase642: function (url) { |
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return new Promise((resolve, reject) => { |
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// 创建新的Image对象 |
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const img = new Image(); |
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@ -320,7 +409,8 @@ export default { |
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// 图片加载完成 |
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img.onload = () => { |
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// 创建canvas元素 |
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const canvas = document.createElement('canvas'); |
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// const canvas = document.createElement('canvas'); |
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const canvas = document.getElementById('myCanvas') |
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const ctx = canvas.getContext('2d'); |
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// 设置canvas宽高 |
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canvas.width = img.width; |
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