Function imgDataToBlob

src/common/mapping/utils/L7LayerUtil.js:1565–1575

(imagedata)

  }

  function imgDataToBlob(imagedata) {
    const canvas = document.createElement('canvas');
    const ctx = canvas.getContext('2d');
    canvas.width = imagedata.width;
    canvas.height = imagedata.height;
    ctx && ctx.putImageData(imagedata, 0, 0);

    const image = new Image();
    image.src = canvas.toDataURL();
    return image.src;
  }

  /**
   * 将雪碧图1倍地址替换成2x的