public void MergeVertices(Vertex vertexToKeep, Vertex vertexToDelete, bool doActualDeletion = true)
{
#if false // this check is relatively slow
if (!Vertices.ContainsAVertexAtPosition(vertexToKeep) || !Vertices.ContainsAVertexAtPosition(vertexToDelete))
{
throw new Exception("Both vertexes have to be part of this mesh to be merged.");
}
#endif
// fix up the mesh edges
List <MeshEdge> connectedMeshEdges = vertexToDelete.GetConnectedMeshEdges();
foreach (MeshEdge meshEdgeToFix in connectedMeshEdges)
{
// fix up the face edges
foreach (FaceEdge faceEdge in meshEdgeToFix.FaceEdgesSharingMeshEdge())
{
if (faceEdge.firstVertex == vertexToDelete)
{
faceEdge.firstVertex = vertexToKeep;
}
}
// fix up the mesh edge
if (meshEdgeToFix.VertexOnEnd[0] == vertexToDelete)
{
meshEdgeToFix.VertexOnEnd[0] = vertexToKeep;
}
else if (meshEdgeToFix.VertexOnEnd[1] == vertexToDelete)
{
meshEdgeToFix.VertexOnEnd[1] = vertexToKeep;
}
// make sure it is in the vertex edge loop
meshEdgeToFix.AddToMeshEdgeLinksOfVertex(vertexToKeep);
}
// delete the vertex
if (doActualDeletion)
{
Vertices.Remove(vertexToDelete);
}
}
public void MergeVertices(Vertex vertexToKeep, Vertex vertexToDelete, bool doActualDeletion = true)
{
#if false // this check is relatively slow
if (!Vertices.ContainsAVertexAtPosition(vertexToKeep) || !Vertices.ContainsAVertexAtPosition(vertexToDelete))
{
throw new Exception("Both vertexes have to be part of this mesh to be merged.");
}
#endif
// fix up the mesh edges
List<MeshEdge> connectedMeshEdges = vertexToDelete.GetConnectedMeshEdges();
foreach (MeshEdge meshEdgeToFix in connectedMeshEdges)
{
// fix up the face edges
foreach (FaceEdge faceEdge in meshEdgeToFix.FaceEdgesSharingMeshEdge())
{
if (faceEdge.firstVertex == vertexToDelete)
{
faceEdge.firstVertex = vertexToKeep;
}
}
// fix up the mesh edge
if (meshEdgeToFix.VertexOnEnd[0] == vertexToDelete)
{
meshEdgeToFix.VertexOnEnd[0] = vertexToKeep;
}
else if (meshEdgeToFix.VertexOnEnd[1] == vertexToDelete)
{
meshEdgeToFix.VertexOnEnd[1] = vertexToKeep;
}
// make sure it is in the vertex edge loop
meshEdgeToFix.AddToMeshEdgeLinksOfVertex(vertexToKeep);
}
// delete the vertex
if (doActualDeletion)
{
Vertices.Remove(vertexToDelete);
}
}