/// <summary>
/// 图形的内缩小
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ElasticityTestBtn_Click(object sender, RoutedEventArgs e)
{
List <Geometry2D> gss = this.drawingKernel.GeometryShapes;
List <Line2D> lines = new List <Line2D>();
foreach (var g in gss)
{
if (g is DrawingKernel.Geometries.Primitives.LineGeometry)
{
DrawingKernel.Geometries.Primitives.LineGeometry line = g as DrawingKernel.Geometries.Primitives.LineGeometry;
lines.Add(Line2D.Create(line.Start, line.End));
}
if (g.GeometryId == "tp")
{
this.drawingKernel.RemoveGeometryShape(g);
}
}
//查找封闭区域
List <List <Line2D> > nn = GraphicAlgorithm.ClosedLookup(lines, true, true);
if (nn != null && nn.Count > 0)
{
List <Line2D> nt = nn[0];
List <Line2D> wtn = GraphicAlgorithm.Elastic(nt, -20);
PolygonGeometry pg = new PolygonGeometry();
wtn.ForEach(y => { pg.PPoints.Add(y.Start); });
pg.FillColor = KernelProperty.GetRandomColor();
pg.GeometryId = "tp";
this.drawingKernel.AddShape(pg);
}
}
