public void ReplaceVertex(PRVertex u, PRVertex v)
{
v.AddFace(this);
if (vertex [0] == u)
{
vertex [0] = v;
}
if (vertex [1] == u)
{
vertex [1] = v;
}
if (vertex [2] == u)
{
vertex [2] = v;
}
for (int i = 0; i < 3; i++)
{
if (vertex [i].neighbor.Contains(u))
{
vertex [i].neighbor.Remove(u);
vertex [i].AddNeighbor(v);
}
v.AddNeighbor(vertex [i]);
}
ComputeNormal();
}
//replace the point u in the triangle with v
public void ReplaceVertex(PRVertex u, PRVertex v)
{
//add this face to v
v.AddFace(this);
//replace the point
if (vertex[0] == u)
{
vertex[0] = v;
}
if (vertex[1] == u)
{
vertex[1] = v;
}
if (vertex[2] == u)
{
vertex[2] = v;
}
//delete the u
//replace all the neighbours of the triangle containing u with v
for (int i = 0; i < 3; i++)
{
if (vertex[i].neighbor.Contains(u))
{
vertex[i].neighbor.Remove(u);
vertex[i].AddNeighbor(v);
}
v.AddNeighbor(vertex[i]);
}
//update the normal
ComputeNormal();
}