Fem: Export PostObject data to VTK - fixes #5816

src/Mod/Fem/App/FemPostObjectPyImp.cpp

@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+/***************************************************************************
+ *   Copyright (c) 2024 Mario Passaglia <mpassaglia[at]cbc.uba.ar>         *
+ *                                                                         *
+ *   This file is part of FreeCAD.                                         *
+ *                                                                         *
+ *   FreeCAD is free software: you can redistribute it and/or modify it    *
+ *   under the terms of the GNU Lesser General Public License as           *
+ *   published by the Free Software Foundation, either version 2.1 of the  *
+ *   License, or (at your option) any later version.                       *
+ *                                                                         *
+ *   FreeCAD 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      *
+ *   Lesser General Public License for more details.                       *
+ *                                                                         *
+ *   You should have received a copy of the GNU Lesser General Public      *
+ *   License along with FreeCAD. If not, see                               *
+ *   <https://www.gnu.org/licenses/>.                                      *
+ *                                                                         *
+ **************************************************************************/
+
+#include "PreCompiled.h"
+#ifndef _PreComp_
+#include <Python.h>
+#endif
+
+#include "FemPostObjectPy.h"
+#include "FemPostObjectPy.cpp"
+
+
+using namespace Fem;
+
+// returns a string which represent the object e.g. when printed in python
+std::string FemPostObjectPy::representation() const
+{
+    std::stringstream str;
+    str << "<FemPostObject object at " << getFemPostObjectPtr() << ">";
+
+    return str.str();
+}
+
+PyObject* FemPostObjectPy::writeVTK(PyObject* args)
+{
+    char* filename;
+    if (!PyArg_ParseTuple(args, "et", "utf-8", &filename)) {
+        return nullptr;
+    }
+
+    std::string utf8Name(filename);
+    PyMem_Free(filename);
+    getFemPostObjectPtr()->writeVTK(utf8Name.c_str());
+
+    Py_Return;
+}
+
+PyObject* FemPostObjectPy::getCustomAttributes(const char* /*attr*/) const
+{
+    return nullptr;
+}
+
+int FemPostObjectPy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
+{
+    return 0;
+}