public Vertex CreateVertex()
{
Vertex v = OwnerMesh.CreateVertex();
AddVertex(v);
return(v);
}
public Edge Split(double split_param)
{
//calculate position of new vertex
Point3D p0 = Vertices[0].Pos;
Point3D p1 = Vertices[1].Pos;
Point3D splitp = p0 + (p1 - p0) * split_param;
//create the new vertex and set it up
Vertex first_vertex = Vertices[0];
Vertex last_vertex = Vertices[1];
Vertex new_vertex = OwnerMesh.CreateVertex();
new_vertex.Pos = splitp; //it's at the split point
//create new edge
Edge new_edge = OwnerMesh.CreateEdge();
//link new vert/edge into owning faces
foreach (Face f in OwnerFaces)
{
f.AddVertex(new_vertex);
f.InsertEdge(new_edge, this);
}
//fix up the new edges
SetVertex(0, first_vertex);
SetVertex(1, new_vertex);
new_edge.SetVertex(0, new_vertex);
new_edge.SetVertex(1, last_vertex);
return(new_edge);
}