public static ValidationStatus IsBoundaryLoop(NGonsCore.geometry3Sharp.mesh.DMesh3 mesh, EdgeLoop loop)
{
int N = loop.Vertices.Length;
for (int i = 0; i < N; ++i)
{
if (!mesh.Vertex_is_boundary(loop.Vertices[i]))
{
return(ValidationStatus.NotBoundaryVertex);
}
}
for (int i = 0; i < N; ++i)
{
int a = loop.Vertices[i];
int b = loop.Vertices[(i + 1) % N];
int eid = mesh.FindEdge(a, b);
if (eid == NGonsCore.geometry3Sharp.mesh.DMesh3.InvalidID)
{
return(ValidationStatus.VerticesNotConnectedByEdge);
}
if (mesh.IsBoundaryEdge(eid) == false)
{
return(ValidationStatus.NotBoundaryEdge);
}
Index2i ev = mesh.GetOrientedBoundaryEdgeV(eid);
if (!(ev.a == a && ev.b == b))
{
return(ValidationStatus.IncorrectLoopOrientation);
}
}
return(ValidationStatus.Ok);
}
public static ValidationStatus IsEdgeLoop(NGonsCore.geometry3Sharp.mesh.DMesh3 mesh, EdgeLoop loop)
{
int N = loop.Vertices.Length;
for (int i = 0; i < N; ++i)
{
if (!mesh.IsVertex(loop.Vertices[i]))
{
return(ValidationStatus.NotAVertex);
}
}
for (int i = 0; i < N; ++i)
{
int a = loop.Vertices[i];
int b = loop.Vertices[(i + 1) % N];
int eid = mesh.FindEdge(a, b);
if (eid == NGonsCore.geometry3Sharp.mesh.DMesh3.InvalidID)
{
return(ValidationStatus.VerticesNotConnectedByEdge);
}
}
return(ValidationStatus.Ok);
}