internal EditableHandle(EditableAlteringManager manager, EditableHandlePosition handlePosition) : base(manager) { HandlePosition = handlePosition; }
internal EditableAlteringObject(EditableAlteringManager manager) { Manager = manager; UIElement = CreateUIElement(); }
internal EditableVertex(EditableAlteringManager manager, int vertexIndex) : base(manager) { VertexIndex = vertexIndex; }