WPF:获取路径的单点? [英] WPF: Get single points of a Path?

问题描述

我在 WPF 中有一个 Path 并且我想获得这条路径的单点.这有可能吗?(我使用了 WPF 内置的 PathSegment，我想得到 WPF 计算的点数)

I have a Path in WPF and I'd like to get the single points of this path. Is this somehow possible? (I used a WPF built-in PathSegment and I'd like to get the points that WPF calculated)

感谢您的提示！

推荐答案

Geometry.GetFlattenedPathGeometry 返回几何对象的多边形近似."然后您可以迭代展平几何图形的图形和线段:每个图形应包含一个 PolyLineSegment，您可以从中迭代 Points 属性以获取路径上的点.因此:

Geometry.GetFlattenedPathGeometry returns "a polygonal approximation of the Geometry object." You can then iterate over the figures and segments of the flattened Geometry: each figure should consist of a single PolyLineSegment, from which you can iterate over the Points property to get the points along the path. Thus:

  PathGeometry g = Path.Data.GetFlattenedPathGeometry();

  foreach (var f in g.Figures)
    foreach (var s in f.Segments)
      if (s is PolyLineSegment)
        foreach (var pt in ((PolyLineSegment)s).Points)
          Debug.WriteLine(pt);

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