public static void StitchPolygons3D(MeshIndexed mesh, List <CadCommon.Polygon> PolyList)
{
// add first
CadCommon.Polygon poly3d;
//poly3d = PolyList[0];
//result.AddPolygon (poly3d);
// join
for (int j = 0; j < PolyList.Count - 1; j++)
{
CadCommon.Polygon poly0 = PolyList[j];
CadCommon.Polygon poly1 = PolyList[j + 1];
// --
for (int k = 0; k < poly0.vertices.Length; k++)
{
int kp1 = (k + 1) % poly0.vertices.Length;
TriangleExt triangle = new TriangleExt(poly1.vertices[kp1].Position, poly0.vertices[kp1].Position, poly0.vertices[k].Position);
mesh.AddTriangle(triangle);
triangle = new TriangleExt(poly0.vertices[k].Position, poly1.vertices[k].Position, poly1.vertices[kp1].Position);
mesh.AddTriangle(triangle);
}
}
// add last
//poly3d = PolyList[PolyList.Count - 1];
//result.AddPolygon(poly3d);
}
public static MeshIndexed StitchPolygons2D(List <Path3DNode> NodeList)
{
MeshIndexed result = new MeshIndexed();
Path3DNode Current;
int index = 0;
Current = new Path3DNode(null, new Vector3(0, 0, 0), new Vector3(0, 0, 0));
CadCommon.Polygon poly0 = null;
CadCommon.Polygon poly1 = null;
for (index = 0; index < NodeList.Count; index++)
{
Path3DNode CurNode = NodeList[index];
// update current
Matrix4 rot = Matrix4.CreateRotationX(MathUtil.DegToRad(Current.Direction.X));
//Quaternion q = Quaternion.FromAxisAngle(Vector3.UnitZ, Current.Direction.X);
Vector3 vec = Vector3.Transform(CurNode.Position, rot);
Current.Position.Add(vec);
Current.Direction.Add(CurNode.Direction);
// triangulate first and last
if ((index == 0) || (index == NodeList.Count - 1))
{
//Cad2D.Polygon poly = CurNode.Poly2d;
//poly.Triangulate();
Cad2D.Polygon poly = PolygonTesselator.Tesselate(CurNode.Polygons);
foreach (Cad2D.Triangle triangle in poly.Triangles)
{
TriangleExt tri3d = new TriangleExt(
new Vector3(triangle.A.X, triangle.A.Y, 0),
new Vector3(triangle.B.X, triangle.B.Y, 0),
new Vector3(triangle.C.X, triangle.C.Y, 0)
);
if (index == 0)
{
tri3d.ReverseOrder();
}
tri3d.RotateX(Current.Direction.X);
tri3d.RotateX(Current.Direction.Y);
tri3d.Translate(Current.Position);
result.AddTriangle(tri3d);
}
}
poly1 = new CadCommon.Polygon(CurNode.Poly2d);
poly1.RotateX(Current.Direction.X);
poly1.RotateX(Current.Direction.Y);
poly1.Translate(Current.Position);
// intermediates
if (index > 0)
{
//
for (int k = 0; k < poly0.vertices.Length; k++)
{
int kp1 = (k + 1) % poly0.vertices.Length;
TriangleExt triangle = new TriangleExt(
new Vector3(poly1.vertices[kp1].Position.X, poly1.vertices[kp1].Position.Y, poly1.vertices[kp1].Position.Z),
new Vector3(poly0.vertices[kp1].Position.X, poly0.vertices[kp1].Position.Y, poly0.vertices[kp1].Position.Z),
new Vector3(poly0.vertices[k].Position.X, poly0.vertices[k].Position.Y, poly0.vertices[k].Position.Z)
);
result.AddTriangle(triangle);
triangle = new TriangleExt(
new Vector3(poly0.vertices[k].Position.X, poly0.vertices[k].Position.Y, poly0.vertices[k].Position.Z),
new Vector3(poly1.vertices[k].Position.X, poly1.vertices[k].Position.Y, poly1.vertices[k].Position.Z),
new Vector3(poly1.vertices[kp1].Position.X, poly1.vertices[kp1].Position.Y, poly1.vertices[kp1].Position.Z)
);
result.AddTriangle(triangle);
}
}
poly0 = poly1;
}
return(result);
}