解决画布打开图片导出图片分辨率不一值问题

src/component/Canvas/CanvasEditor/index.vue

@@ -456,6 +456,13 @@ onMounted(async () => {
   // 使用window的resize事件代替ResizeObserver
   // 只有当窗口大小变化时才更新画布尺寸
   //   window.addEventListener("resize", handleWindowResize);
+	if(props.config.initZoom) {
+		const width  = canvasManager.width;
+		const height  = canvasManager.height;
+		const cwidth = props.config.width;
+		const cheight = props.config.height;
+		setZoom(Math.min(width/cwidth,height/cheight)); // 设置画布缩放
+	}
 });
 
 watchEffect(() => {
@@ -521,6 +528,19 @@ function resetZoom() {
   canvasManager.resetZoom();
 }
 
+function setZoom(zoom) {
+	setTimeout(()=>{
+  if (!canvasManager) return;
+  const newZoom = Math.max(zoom / 1.1, 0.1); // 减少10%，最小0.1倍
+  // 使用画布中心作为缩放点
+  const centerPoint = {
+    x: canvasManager.canvas.width / 2,
+    y: canvasManager.canvas.height / 2,
+  };
+  canvasManager.animateZoom(centerPoint, newZoom);
+	})
+}
+
 function zoomIn() {
   if (!canvasManager) return;
 
@@ -882,6 +902,7 @@ defineExpose({
     layerId = "", // 导出具体图层ID
     layerIdArray = [], // 导出多个图层ID数组
     expPicType = "png", // 导出图片类型  JPG 或 PNG ,SVG
+		isEnhanceImg, // 是否是增强图片
   } = {}) => {
     return canvasManager.exportImage({
       isContainBg,
@@ -890,6 +911,7 @@ defineExpose({
       layerId,
       layerIdArray,
       expPicType,
+			isEnhanceImg,
     });
   },
   /**