[GitHub] [echarts] yangkai-bj commented on pull request #15095: feat: pie-chart support negative value

[GitBox <gi...@apache.org>]

yangkai-bj commented on pull request #15095:
URL: https://github.com/apache/echarts/pull/15095#issuecomment-919790484


   在Pie中强制过滤负数,是否简单粗暴了一些,在饼图和圆环图中负数确实导致图形绘制的问题,但玫瑰图可以真实反映负数,是否可以将PIE中"是否过滤负值"作为一个用户选项.
   日常涉及规模数据的时候一般都是非负数,使用Pie绘制很好理解,但涉及增量的占比,负增数据无法避免,饼图和圆环图都无法绘制,往往需要对原始数据进行变形(将所有值+abs(最小负值))后绘制,绘制后的图表让人很难理解,5.1.2以前的玫瑰图(roseType: "area")可以真实体现原始数据中的负数.


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