public void subdivide_face(CLSFace f)
{
CLSEdgeVector f_edges = g.face_edges(f);
Debug.Assert(f_edges.size() == 4);
CLSVertex center = g.add_vertex();
foreach (CLSEdge e in f_edges)
{
CLSVertex src = g.source(e);
CLSVertex trg = g.target(e);
// new vertex at mid-point of each edge
Point mid = 0.5 * (g[src].position + g[trg].position);
g[center].position += 0.25 * g[src].position; // average of four corners
CLSVertex v = g.add_vertex();
g[v].position = mid;
g.insert_vertex_in_edge(v, e); // this also removes the old edges...
}
// now loop through edges again:
f_edges = g.face_edges(f);
Debug.Assert(f_edges.size() == 8);
foreach (CLSEdge e in f_edges)
{
Console.Write(e);
Console.Write("\n");
}
}
public void subdivide()
{
for (CLSFace f = 0; f < g.num_faces(); ++f)
{
// subdivide each face
if (f != out_face)
{
subdivide_face(new CLSFace(f));
}
}
}
/// create edge with given next, twin, and face
public CLSEdgeProps(CLSEdge n, CLSEdge t, CLSFace f)
{
//C++ TO C# CONVERTER TODO TASK: The following line was determined to be a copy assignment (rather than a reference assignment) - this should be verified and a 'CopyFrom' method should be created:
//ORIGINAL LINE: next = n;
next.CopyFrom(n);
//C++ TO C# CONVERTER TODO TASK: The following line was determined to be a copy assignment (rather than a reference assignment) - this should be verified and a 'CopyFrom' method should be created:
//ORIGINAL LINE: twin = t;
twin.CopyFrom(t);
//C++ TO C# CONVERTER TODO TASK: The following line was determined to be a copy assignment (rather than a reference assignment) - this should be verified and a 'CopyFrom' method should be created:
//ORIGINAL LINE: face = f;
face.CopyFrom(f);
}
public void init()
{
// initialize cl-surf
//
// b e1 a
// e2 e4
// c e3 d
CLSVertex a = g.add_vertex(); // VertexProps( Point(far,far,0) ), g);
g[a].position = new Point(far, far, 0);
CLSVertex b = g.add_vertex(); // VertexProps( Point(-far,far,0) ), g);
g[b].position = new Point(-far, far, 0);
CLSVertex c = g.add_vertex(); // VertexProps( Point(-far,-far,0) ), g);
g[c].position = new Point(-far, -far, 0);
CLSVertex d = g.add_vertex(); // VertexProps( Point(far,-far,0) ), g);
g[c].position = new Point(far, -far, 0);
CLSFace f_outer = g.add_face();
CLSFace f_inner = g.add_face();
CLSEdge e1 = g.add_edge(a, b);
CLSEdge e1t = g.add_edge(b, a);
CLSEdge e2 = g.add_edge(b, c);
CLSEdge e2t = g.add_edge(c, b);
CLSEdge e3 = g.add_edge(c, d);
CLSEdge e3t = g.add_edge(d, c);
CLSEdge e4 = g.add_edge(d, a);
CLSEdge e4t = g.add_edge(a, d);
g[f_inner].edge = e1;
g[f_outer].edge = e1t;
//C++ TO C# CONVERTER TODO TASK: The following line was determined to be a copy assignment (rather than a reference assignment) - this should be verified and a 'CopyFrom' method should be created:
//ORIGINAL LINE: out_face = f_outer;
out_face.CopyFrom(f_outer);
// twin edges
g.twin_edges(e1, e1t);
g.twin_edges(e2, e2t);
g.twin_edges(e3, e3t);
g.twin_edges(e4, e4t);
// inner face:
g[e1].face = f_inner;
g[e2].face = f_inner;
g[e3].face = f_inner;
g[e4].face = f_inner;
// outer face:
g[e1t].face = f_outer;
g[e2t].face = f_outer;
g[e3t].face = f_outer;
g[e4t].face = f_outer;
// next-pointers:
g[e1].next = e2;
g[e2].next = e3;
g[e3].next = e4;
g[e4].next = e1;
// outer next-pointers:
g[e1t].next = e4t;
g[e4t].next = e3t;
g[e3t].next = e2t;
g[e2t].next = e1t;
subdivide();
}
