控制导出图片大小

src/component/Canvas/CanvasEditor/utils/imageHelper.js

@@ -2191,3 +2191,27 @@ export const imageModeHandler = ({ imageMode, newImage, canvasWidth, canvasHeigh
     }
   }
 };
+
+
+/**
+ * 调整图像大小
+ * @param {string} base64 - 原始base64字符串
+ * @param {number} width - 目标宽度
+ * @param {number} height - 目标高度
+ * @returns {Promise<string>} 处理后的base64字符串
+*/
+export const resizeImage = async (base64, width, height) => {
+  return new Promise((resolve, reject) => {
+    const img = new Image();
+    img.src = base64;
+    img.onload = () => {
+      const canvas = document.createElement("canvas");
+      canvas.width = width;
+      canvas.height = height;
+      const ctx = canvas.getContext("2d");
+      ctx.drawImage(img, 0, 0, width, height);
+      resolve(canvas.toDataURL());
+    };
+    img.onerror = reject;
+  });
+};