private List <Line3D> GetCutRegion(List <List <Line3D> > cellList, List <Line3D> openningOutLines)
{
List <Line3D> resultLines = new List <Line3D>();
foreach (List <Line3D> lines in cellList)
{
Vector3D centriod = GetCentriod(lines);
int a = GraphicAlgorithm.InsideOfRegion(centriod, openningOutLines);
if (a == 1)
{
resultLines = lines;
break;
}
}
return(resultLines);
}
/// <summary>
/// 检测一个点是否在一个多边形内部
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void InsideTestBtn_Click(object sender, RoutedEventArgs e)
{
List <Geometry2D> gss = this.drawingKernel.GeometryShapes;
List <Line2D> lines = new List <Line2D>();
List <Vector2D> vts = new List <Vector2D>();
foreach (var g in gss)
{
if (g is PolygonGeometry)
{
PolygonGeometry poly = g as DrawingKernel.Geometries.Primitives.PolygonGeometry;
g.FillColor = Colors.Azure;
g.Opacity = 0.3;
poly.Update();
lines.AddRange(poly.Lines);
}
if (g is DrawingKernel.Geometries.Primitives.LineGeometry)
{
DrawingKernel.Geometries.Primitives.LineGeometry l = g as DrawingKernel.Geometries.Primitives.LineGeometry;
vts.Add(l.Start);
vts.Add(l.End);
}
if (g.GeometryId == "tp")
{
this.drawingKernel.RemoveGeometryShape(g);
}
}
if (vts != null)
{
int resultP = 0;
for (int i = 0; i < vts.Count; i++)
{
resultP = GraphicAlgorithm.InsideOfRegion(vts[i], lines);
if (resultP == 0)
{
CircleGeometry c = new DrawingKernel.Geometries.Primitives.CircleGeometry();
c.FillColor = Colors.Red;
c.Start = vts[i];
c.End = Vector2D.Create(vts[i].X + 5, vts[i].Y);
c.GeometryId = "tp";
this.drawingKernel.AddShape(c);
}
else if (resultP == 1)
{
CircleGeometry c = new DrawingKernel.Geometries.Primitives.CircleGeometry();
c.FillColor = Colors.Green;
c.Start = vts[i];
c.End = Vector2D.Create(vts[i].X + 5, vts[i].Y);
c.GeometryId = "tp";
this.drawingKernel.AddShape(c);
}
else
{
CircleGeometry c = new DrawingKernel.Geometries.Primitives.CircleGeometry();
c.FillColor = Colors.Yellow;
c.Start = vts[i];
c.End = Vector2D.Create(vts[i].X + 5, vts[i].Y);
c.GeometryId = "tp";
this.drawingKernel.AddShape(c);
}
}
}
}