private void btnTessellateConcave_Click(object sender, RoutedEventArgs e)
{
try
{
ClearAllVisuals();
// Create some random triangles
Point[][] initialPolys = new Point[5][];
for (int cntr = 0; cntr < initialPolys.Length; cntr++)
{
Point[] triangle = Enumerable.Range(0, 3).
Select(o => Math3D.GetRandomVector_Circular(20d)).
Select(o => new Point(o.X, o.Y)).
ToArray();
initialPolys[cntr] = triangle;
}
// Turn into polygons
Polygon2D[] unionPolys = Math2D.GetUnion_Polygons(initialPolys);
TriangleIndexed[][] triangulated = new TriangleIndexed[unionPolys.Length][];
for (int cntr = 0; cntr < unionPolys.Length; cntr++)
{
//http://wiki.unity3d.com/index.php?title=Triangulator
Point3D[] poly3D = unionPolys[cntr].Polygon.Select(o => o.ToPoint3D()).ToArray();
triangulated[cntr] = Triangulator.Triangulate(unionPolys[cntr].Polygon).
Select(o => new TriangleIndexed(o.Item1, o.Item2, o.Item3, poly3D)).
ToArray();
}
#region Draw
Visual3D visual;
// Orig polygons
foreach (Polygon2D polygon in unionPolys) // ignoring holes
{
visual = GetVisual_PolygonLines(polygon.Polygon.Select(o => o.ToPoint3D()).ToArray(), Colors.Gray, 2);
_debugVisuals.Add(visual);
_viewport.Children.Add(visual);
}
// Individual triangles
foreach (TriangleIndexed triangle in triangulated.SelectMany(o => o))
{
visual = GetVisual_Triangle(new ITriangle[] { triangle }, UtilityWPF.GetRandomColor(128, 0, 255));
_debugVisuals.Add(visual);
_viewport.Children.Add(visual);
}
#endregion
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
