protected override void begin_smooth()
{
base.begin_smooth();
if (LocalSmoothingRings > 0)
{
smoothV.Clear();
if (LocalSmoothingRings == 1)
{
for (int i = 0; i < CurrentLoopV.Count; ++i)
{
smoothV.Add(CurrentLoopV[i]);
foreach (int nbrv in mesh.VtxVerticesItr(CurrentLoopV[i]))
{
smoothV.Add(nbrv);
}
}
}
else
{
MeshVertexSelection select = new MeshVertexSelection(mesh);
select.Select(CurrentLoopV);
select.ExpandToOneRingNeighbours(LocalSmoothingRings);
foreach (int vid in select)
{
smoothV.Add(vid);
}
}
}
}
protected bool check_for_cracks(DMesh3 mesh, out int boundary_edge_count, double crack_tol = MathUtil.ZeroTolerancef)
{
boundary_edge_count = 0;
var boundary_verts = new MeshVertexSelection(mesh);
foreach (int eid in mesh.BoundaryEdgeIndices())
{
Index2i ev = mesh.GetEdgeV(eid);
boundary_verts.Select(ev.a); boundary_verts.Select(ev.b);
boundary_edge_count++;
}
if (boundary_verts.Count == 0)
{
return(false);
}
AxisAlignedBox3d bounds = mesh.CachedBounds;
var borderV = new PointHashGrid3d <int>(bounds.MaxDim / 128, -1);
foreach (int vid in boundary_verts)
{
Vector3d v = mesh.GetVertex(vid);
var result = borderV.FindNearestInRadius(v, crack_tol, (existing_vid) =>
{
return(v.Distance(mesh.GetVertex(existing_vid)));
});
if (result.Key != -1)
{
return(true); // we found a crack vertex!
}
borderV.InsertPoint(vid, v);
}
// found no cracks
return(false);
}
