// Return a new CSG solid representing space both this solid and in the
// solid `csg`. Neither this solid nor the solid `csg` are modified.
public static List <Mesh> Intersect(CSGNode _nodeAIn, CSGNode _nodeBIn, CSGMeshingSettings _meshSettings)
{
List <Mesh> resultantMeshes = new List <Mesh>();
CSGNode nodeA = _nodeAIn.Clone();
CSGNode nodeB = _nodeBIn.Clone();
nodeA.Invert();
nodeB.ClipTo(nodeA);
nodeB.Invert();
nodeA.ClipTo(nodeB);
nodeB.ClipTo(nodeA);
nodeA.Build(nodeB.AllPolygons());
nodeA.Invert();
CSGModel resultModel = new CSGModel(nodeA.AllPolygons());
if (resultModel.SubDivideMesh(_meshSettings))
{
for (int subMeshIter = 0; subMeshIter < resultModel.m_subModels.Count; subMeshIter++)
{
resultantMeshes.Add(resultModel.m_subModels[subMeshIter].ToMesh());
}
}
else
{
resultantMeshes.Add(resultModel.ToMesh());
}
return(resultantMeshes);
}
// Return a new CSG solid representing space both this solid and in the
// solid `csg`. Neither this solid nor the solid `csg` are modified.
public static List <Mesh> HVIntersect(CSGNode _nodeAIn, CSGNode _nodeBIn, CSGMeshingSettings _meshSettings)
{
List <Mesh> resultantMeshes = new List <Mesh>();
CSGNode nodeA = _nodeAIn.Clone();
CSGNode nodeB = _nodeBIn.Clone();
nodeB.Invert();
nodeA.ClipTo(nodeB);
CSGModel resultantModels = new CSGModel(nodeA.AllPolygons());
resultantModels.SubDivideMesh(_meshSettings);
resultantMeshes.Add(resultantModels.ToMesh());
return(resultantMeshes);
}
// Return a new CSG solid representing space in this solid but not in the
// solid `csg`. Neither this solid nor the solid `csg` are modified.
public static List <Mesh> NVSubtract(CSGNode _nodeAIn, CSGNode _nodeBIn, CSGNode _nodeCIn, CSGNode _nodeDIn, CSGMeshingSettings _meshSettings)
{
List <Mesh> resultantMeshes = new List <Mesh>();
CSGNode nodeA = _nodeAIn.Clone();
CSGNode nodeB = _nodeBIn.Clone();
nodeA.ClipTo(nodeB);
CSGNode nodeC = _nodeCIn.Clone();
CSGNode nodeD = _nodeDIn.Clone();
nodeD.Invert();
nodeC.ClipTo(nodeD);
CSGModel resultantModelA = new CSGModel(nodeA.AllPolygons());
CSGModel resultantModelB = new CSGModel(nodeC.AllPolygons());
resultantMeshes.Add(resultantModelA.ToMesh());
resultantMeshes.Add(resultantModelB.ToMesh());
return(resultantMeshes);
}
// Convert solid space to empty space and empty space to solid space.
public void Invert()
{
for (int i = 0; i < m_polygons.Count; i++)
{
m_polygons[i].Flip();
}
m_plane.Flip();
if (m_frontNode != null)
{
m_frontNode.Invert();
}
if (m_backNode != null)
{
m_backNode.Invert();
}
CSGNode tempNode = m_frontNode;
m_frontNode = m_backNode;
m_backNode = tempNode;
}
