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优化代码

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This commit is contained in:
wuxw 2024-09-29 17:59:32 +08:00
parent b44e2b509e
commit bccd2d1dcb
1 changed files with 19 additions and 7 deletions
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26
lib/java110/utils/translate-image.js
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@ -79,17 +79,29 @@ function imageToBease64(that, imageUrl, callback) {
const canvas = res[0].node;
const ctx = canvas.getContext('2d');
const image = canvas.createImage();
canvas.width = imgData.width;
canvas.height = imgData.height;
image.src = imgData.path;
image.onload = function() {
const canvasWidth = imgData.width; // 获取图片宽度
const canvasHeight = imgData.height; // 获取图片高度
ctx.drawImage(image, 0, 0, canvasWidth, canvasHeight); // 绘制图片
let h = imgData.height;
// 默认按比例压缩
let w = imgData.width;
if(h > 1080 || w > 1080){
let _rate = 0;
if(h > w){
_rate = h/1080;
h = 1080;
w = Math.floor(w/_rate);
}else{
_rate = w/1080;
w = 1080;
h = Math.floor(h/_rate);
}
}
canvas.width = w;
canvas.height = h;
ctx.drawImage(image, 0, 0, w, h); // 绘制图片
// 设置水印样式
addWaterMark(ctx, imgData.width, imgData.height);
addWaterMark(ctx, w, h);
//压缩比例
let quality = 0.3;