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Finish get nodes by surface

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This commit is contained in:
jriegel 2014-02-09 17:53:21 +01:00
parent 1341c43e5f
commit cd69467ede
3 changed files with 24 additions and 12 deletions
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21
src/Mod/Fem/App/FemMesh.cpp
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@ -29,7 +29,9 @@
# include <strstream>
# include <Bnd_Box.hxx>
# include <BRepBndLib.hxx>
# include <BRepAlgo_NormalProjection.hxx>
# include <BRepExtrema_DistShapeShape.hxx>
# include <TopoDS_Vertex.hxx>
# include <BRepBuilderAPI_MakeVertex.hxx>
# include <gp_Pnt.hxx>
#endif
@ -408,6 +410,9 @@ std::set<long> FemMesh::getSurfaceNodes(const TopoDS_Face &face)const
Bnd_Box box;
BRepBndLib::Add(face, box);
// limit where the mesh node belongs to the face:
double limit = box.SquareExtent()/10000.0;
box.Enlarge(limit);
// get the actuall transform of the FemMesh
const Base::Matrix4D Mtrx(getTransform());
@ -420,15 +425,21 @@ std::set<long> FemMesh::getSurfaceNodes(const TopoDS_Face &face)const
vec = Mtrx * vec;
if(!box.IsOut(gp_Pnt(vec.x,vec.y,vec.z))){
// create a Vertex
BRepBuilderAPI_MakeVertex aBuilder(gp_Pnt(vec.x,vec.y,vec.z));
TopoDS_Shape s = aBuilder.Vertex();
// measure distance
BRepExtrema_DistShapeShape measure(face,s);
measure.Perform();
if (!measure.IsDone() || measure.NbSolution() < 1)
continue;
result.insert(aNode->GetID());
if(measure.Value() < limit)
result.insert(aNode->GetID());
}
}
BRepAlgo_NormalProjection algo;
return result;
}

2
src/Mod/Fem/App/FemMeshPy.xml
View File

@ -89,7 +89,7 @@
<UserDocu>Get the node position vector by an Node-ID</UserDocu>
</Documentation>
</Methode>
<Methode Name="getNodesByFace">
<Methode Name="getNodesByFace" Const="true">
<Documentation>
<UserDocu>Return a list of node IDs which belong to a TopoFace</UserDocu>
</Documentation>

13
src/Mod/Fem/Gui/ViewProviderFemMeshPyImp.cpp
View File

@ -218,13 +218,14 @@ Py::List ViewProviderFemMeshPy::getHighlightedNodes(void) const
void ViewProviderFemMeshPy::setHighlightedNodes(Py::List arg)
{
/* std::set<long>& nodeSet;
for (Py::List::iterator it = arg.begin(); it != arg.end() && index < 16; ++it) {
nodeSet.i (double)Py::Int(*it);
}
setHighlightNodes*/
throw Py::AttributeError("Not yet implemented");
std::set<long> res;
for( Py::List::iterator it = arg.begin(); it!= arg.end();++it){
Py::Int id(*it);
if(id)
res.insert(id);
}
this->getViewProviderFemMeshPtr()->setHighlightNodes(res);
}
Py::List ViewProviderFemMeshPy::getVisibleElementFaces(void) const