FEM: implement interface of ComplexGeoData

src/Mod/Fem/App/FemMesh.cpp

@@ -2596,6 +2596,23 @@ Data::Segment* FemMesh::getSubElement(const char* /*Type*/, unsigned long /*n*/)
     return nullptr;
 }
 
+void FemMesh::getPoints(std::vector<Base::Vector3d> &Points,
+                        std::vector<Base::Vector3d> & /*Normals*/,
+                        double /*Accuracy*/, uint16_t /*flags*/) const
+{
+    const SMESHDS_Mesh* data = getSMesh()->GetMeshDS();
+    std::vector<Base::Vector3d> nodes;
+    nodes.reserve(data->NbNodes());
+
+    SMDS_NodeIteratorPtr aNodeIter = data->nodesIterator();
+    for (;aNodeIter->more();) {
+        const SMDS_MeshNode* aNode = aNodeIter->next();
+        nodes.emplace_back(aNode->X(), aNode->Y(), aNode->Z());
+    }
+
+    Points = transformPointsToOutside(nodes);
+}
+
 struct Fem::FemMesh::FemMeshInfo FemMesh::getInfo() const{
 
     struct FemMeshInfo rtrn;

src/Mod/Fem/App/FemMesh.h

@@ -85,6 +85,10 @@ public:
     unsigned long countSubElements(const char* Type) const override;
     /// get the subelement by type and number
     Data::Segment* getSubElement(const char* Type, unsigned long) const override;
+    /** Get points from object with given accuracy */
+    void getPoints(std::vector<Base::Vector3d> &Points,
+        std::vector<Base::Vector3d> &Normals,
+        double Accuracy, uint16_t flags=0) const override;
     //@}
 
     /** @name search and retrieval */

src/Mod/Fem/App/FemMeshObject.cpp

@@ -22,7 +22,7 @@
 
 #include "PreCompiled.h"
 
-#include <App/DocumentObjectPy.h>
+#include <App/GeoFeaturePy.h>
 #include <App/FeaturePythonPyImp.h>
 #include <Base/Placement.h>
 
@@ -56,7 +56,7 @@ PyObject *FemMeshObject::getPyObject()
 {
     if (PythonObject.is(Py::_None())){
         // ref counter is set to 1
-        PythonObject = Py::Object(new DocumentObjectPy(this), true);
+        PythonObject = Py::asObject(new GeoFeaturePy(this));
     }
     return Py::new_reference_to(PythonObject);
 }
@@ -84,7 +84,7 @@ template<> const char* Fem::FemMeshObjectPython::getViewProviderName() const {
 template<> PyObject* Fem::FemMeshObjectPython::getPyObject() {
     if (PythonObject.is(Py::_None())) {
         // ref counter is set to 1
-        PythonObject = Py::Object(new App::FeaturePythonPyT<App::DocumentObjectPy>(this), true);
+        PythonObject = Py::asObject(new App::FeaturePythonPyT<App::GeoFeaturePy>(this));
     }
     return Py::new_reference_to(PythonObject);
 }

src/Mod/Fem/App/FemMeshObject.h

@@ -51,6 +51,9 @@ public:
     }
     short mustExecute() const override;
     PyObject *getPyObject() override;
+    const App::PropertyComplexGeoData* getPropertyOfGeometry() const override {
+        return &FemMesh;
+    }
 
     PropertyFemMesh FemMesh;