/// <summary>
/// Subtracts another mesh from this one.
/// </summary>
/// <param name="anotherMesh">Another mesh.</param>
/// <seealso cref="ConstructiveSolidGeometry.Subtract"/>
public virtual void Subtract(IMesh anotherMesh)
{
BspNode <SplittableTriangle> a = this.ToBspTree();
BspNode <SplittableTriangle> b = anotherMesh.ToBspTree();
a.Invert();
a.Unite(b);
a.Invert();
this.SetBsp(a);
}
/// <summary>
/// Intersects this mesh with another.
/// </summary>
/// <param name="anotherMesh">Another mesh.</param>
/// <seealso cref="ConstructiveSolidGeometry.Intersection"/>
public virtual void Intersect(IMesh anotherMesh)
{
BspNode <SplittableTriangle> a = this.ToBspTree();
BspNode <SplittableTriangle> b = anotherMesh.ToBspTree();
a.Invert(); // Cut geometry that is not common for the meshes.
b.CutTreeOut(a); //
b.Invert(); //
a.CutTreeOut(b); //
// Clean up remains.
b.CutTreeOut(a);
// Combine geometry.
a.AddElements(b.AllElements);
// Invert everything.
a.Invert();
this.SetBsp(a);
}
