KineticJS - 获取路径形状的宽度/高度？ [英] KineticJS - Get the width/height of a Path Shape?

问题描述

这对我来说是一个大问题...

this is a big issue for me at the moment...

我通过路径形状渲染世界地图...问题是路径形状不提供宽度或高度，
，所以缓存或其他简单的操作变得很难做。

I'm rendering a world map via Path shapes... problem is the Path Shape does not offer width or height, so caching or other simple operations become really hard to do.

例如我给予 path.toImage ？

任何想法如何解决这个问题？

Any idea how I could get around this problem?

推荐答案

如果世界地图路径由一个系列（通常是），你可以通过查找路径数据中的minX / minY和maxX / maxY坐标来获得路径的边界框。

If the world map path is made up of a series of lines (as it often is), you can get the bounding box of the path by looking for the minX/minY and maxX/maxY coordinates in your path data.

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