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🤔 这个变动的性质是?
🔗 相关 Issue
💡 需求背景和解决方案
面图层使用 earcut 算法进行三角剖分的时候,数据直接用的经纬度数据。
earcut 算法得是一个共平面的数据,也就是投影后的数据。
将在进行三角剖分之前,将数据投影,获取正确索引数据,