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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2019/12/05 01:35:34 UTC
[GitHub] [incubator-echarts] alex2wong edited a comment on issue #11739: 地图迁徙图，线的绘制问题
alex2wong edited a comment on issue #11739: 地图迁徙图，线的绘制问题
URL: https://github.com/apache/incubator-echarts/issues/11739#issuecomment-561925913
类似问题 #9771 #8059
@pissang 是的，思路确实如此。用线段替代离散点，这个不用改Echarts，用一个offscreen canvas 事先缓存一个线段作为自定义symbol 即可。
这个策略针对移动端渲染弱的问题也有一定帮助，在iPhone X 和huawei P20 pro 上测试，也没有断点。当然要限定在一定zoom 内，zoomIn 太深，也会看到断点
详细代码参考：
https://github.com/alex2wong/incubator-echarts/commit/a22b57b04527f37bfd93129d4079db4a06f7de26
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