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canvas绘画板 实现类似地图的局部放大，拖动效果
    画图熟悉canvas的应该都比较了解，最近要实现一个画板工具 老板要求画板能像百度地图一样局部缩放、拖动的效果。参考https://stackoverflow.com/que...，但是加上笔触的效果之后不适用了。有大佬做过类似的项目吗，求点拨。...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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