Question

我有一个非托管API，它使用System.Drawing.Region作为参数。
问题是，我有一个System.Windows.Media.Geometry，我需要将其转换为Region - 类。

我想知道我应该如何转换这种类型...... 我应该寻找角点并转换它们还是已经存在转换方法 [我还没找到] ？

<小时/> 如果有人需要System.Windows.Media.Geometry的示例，则XAML代码如下所示：

<GeometryGroup>
    <RectangleGeometry Rect="32,0,440,89"/>
    <RectangleGeometry Rect="0,89,472,41"/>
    <RectangleGeometry Rect="472,93,66,193"/>
    <RectangleGeometry Rect="53,130,419,156"/>
    <RectangleGeometry Rect="53,184,38,102"/>
    <RectangleGeometry Rect="91,200,52,86"/>
    <RectangleGeometry Rect="143,216,75,70"/>
    <RectangleGeometry Rect="218,232,52,54"/>
    <RectangleGeometry Rect="270,248,75,38"/>
    <RectangleGeometry Rect="345,264,52,22"/>
    <RectangleGeometry Rect="516,270,22,16"/>
<GeometryGroup/>

Answer 1

好的 - 我自己找到了解决方案：

Geometry geo = .... ;

IEnumerable<PolyLineSegment> segments =
    from PathFigure figure in geo.GetOutlinedPathGeometry().Figures
    from PathSegment segment in figure.Segments
    select s as PolyLineSegment;

using (GraphicsPath path = new GraphicsPath())
{
    path.StartFigure();

    foreach (PolyLineSegment plseg in segments)
    {
        PointF[] points = (from point in plseg.Points
                           select new Point((float)point.X, (float)point.Y)).ToArray();

        path.AddPolygon(points);
    }

    path.CloseFigure();

    // DO SOMETHING WITH `path´
}

Conversion System.Windows.Media.Geometry - ＆gt; System.Drawing.Region

1 个答案: