Version 4 of the Erasing Elements Code

src/Mod/Fem/App/FemSetElementNodesObject.cpp

@@ -0,0 +1,59 @@
+/***************************************************************************
+ *   Copyright (c) 2023 Peter McB                                          *
+ *                                                                         *
+ *   based on: FemSetNodesObject.cpp                                       *
+ *   Copyright (c) 2013 Jürgen Riegel (FreeCAD@juergen-riegel.net)         *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  is distributed in the hope that it will be useful,      *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "PreCompiled.h"
+
+#include <App/DocumentObjectPy.h>
+
+#include "FemSetElementNodesObject.h"
+
+
+using namespace Fem;
+using namespace App;
+
+PROPERTY_SOURCE(Fem::FemSetElementNodesObject, Fem::FemSetObject)
+
+
+FemSetElementNodesObject::FemSetElementNodesObject()
+{
+    ADD_PROPERTY_TYPE(Elements, (), "Element indexes", Prop_None, "Elements belonging to the ElementSet");
+}
+
+FemSetElementNodesObject::~FemSetElementNodesObject() = default;
+
+short FemSetElementNodesObject::mustExecute() const
+{
+    return 0;
+}
+
+PyObject* FemSetElementNodesObject::getPyObject()
+{
+    if (PythonObject.is(Py::_None())) {
+        // ref counter is set to 1
+        PythonObject = Py::Object(new DocumentObjectPy(this), true);
+    }
+    return Py::new_reference_to(PythonObject);
+}
+