/// <summary>
/// Removes a face from the kernel, by cutting a hole in the mesh
/// All Edges belonging to this face will become unlinked, naked edges
/// </summary>
/// <param name="face"></param>
/// <returns></returns>
public override bool Remove(Face face)
{
if (face.Start is null)
{
return(_elements.Remove(face));
}
// iterate over face edges
foreach (var edge in new EdgeIterator(face.Start))
{
// unlink the current edge
EdgeLinker.UnlinkEdge(edge);
}
// remove face from inner collection
return(_elements.Remove(face));
}
/// <summary>
/// Removes a <see cref="HalfEdge"/>. This also removes its pair,
/// as HalfEdges are not allowed to be single ;)
/// </summary>
/// <param name="edge"></param>
/// <returns></returns>
public override bool Remove(HalfEdge edge)
{
// handle active references to edge
if (!EdgeLinker.IsDummyPairEdge(edge))
{
RemoveReferences(edge);
}
// handle active references to its pair
if (!EdgeLinker.IsDummyPairEdge(edge.Pair))
{
RemoveReferences(edge.Pair);
}
// unlink the edges
EdgeLinker.UnlinkEdge(edge);
EdgeLinker.UnlinkEdge(edge.Pair);
// remove edges from inner collection
_elements.Remove(edge);
_elements.Remove(edge.Pair);
return(true);
}
