/// <summary>
/// 根据当前的路径生成几何组。
/// </summary>
/// <param name="factory">Direct2D 工厂。</param>
/// <returns>生成的几何组。</returns>
public GeometryGroup GetGeometryGroup(Factory factory)
{
Geometry[] geometries = new Geometry[this.figureCount];
PathGeometry path = new PathGeometry(factory);
GeometrySink sink = path.Open();
sink.SetFillMode(FillMode.Winding);
sink.BeginFigure(this.StartPoint, FigureBegin.Filled);
int cnt = this.Count;
int idx = 0;
for (int i = 0; i < cnt; i++)
{
EndFigureSegment end = this[i] as EndFigureSegment;
if (end == null)
{
this[i].FillGeometry(sink);
}
else
{
sink.EndFigure(FigureEnd.Closed);
sink.Close();
geometries[idx++] = path;
path = new PathGeometry(factory);
sink = path.Open();
sink.SetFillMode(FillMode.Winding);
sink.BeginFigure(end.EndPoint, FigureBegin.Filled);
}
}
sink.EndFigure(FigureEnd.Closed);
sink.Close();
geometries[idx++] = path;
return(new GeometryGroup(factory, FillMode.Winding, geometries));
}
/// <summary>
/// 返回当前路径中包含的形状的颜色（黑/白）。
/// </summary>
/// <returns>表示颜色的数组。</returns>
public bool[] GetColors()
{
bool[] colors = new bool[figureCount];
colors[0] = this.IsBlack;
int cnt = this.Count;
for (int i = 0, idx = 1; i < cnt; i++)
{
EndFigureSegment end = this[i] as EndFigureSegment;
if (end != null)
{
colors[idx++] = end.IsBlack;
}
}
return(colors);
}
