static Mesh PerformOperation(Mesh a, Mesh b, CsgFunctionHandler fun)
{
CsgNode A = new CsgNode(PolygonsFromMesh(a));
CsgNode B = new CsgNode(PolygonsFromMesh(b));
CsgNode AB = fun(A, B);
List <CsgPolygon> polygons = AB.GetAllPolygons();
return(MeshFromPolygons(polygons));
}
// Return a new CSG solid representing space in either this solid or in the
// solid `csg`. Neither this solid nor the solid `csg` are modified.
//
// +-------+ +-------+
// | | | |
// | A | | |
// | +--+----+ = | +----+
// +----+--+ | +----+ |
// | B | | |
// | | | |
// +-------+ +-------+
//
public static CsgNode Union(CsgNode a1, CsgNode b1)
{
CsgNode a = a1.Clone();
CsgNode b = b1.Clone();
a.ClipTo(b);
b.ClipTo(a);
b.Invert();
b.ClipTo(a);
b.Invert();
a.BuildFromPolygons(b.GetAllPolygons());
CsgNode ret = new CsgNode(a.GetAllPolygons());
return(ret);
}