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add method to get u,v nodes of the tessellation of a face

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add method to get the nodes of the tessellation of an edge
This commit is contained in:
wmayer
2018-01-14 15:52:08 +01:00
parent 327957110a
commit 9980b74816
4 changed files with 118 additions and 2 deletions
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65
src/Mod/Part/App/TopoShapeEdgePyImp.cpp
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@@ -49,11 +49,17 @@
# include <gp_Hypr.hxx>
# include <gp_Parab.hxx>
# include <gp_Lin.hxx>
# include <Poly_Polygon2D.hxx>
# include <Poly_Polygon3D.hxx>
# include <Poly_Triangulation.hxx>
# include <Poly_PolygonOnTriangulation.hxx>
# include <TColStd_Array1OfReal.hxx>
# include <TopExp.hxx>
# include <TopoDS.hxx>
# include <TopoDS_Shape.hxx>
# include <TopoDS_Edge.hxx>
# include <TopoDS_Vertex.hxx>
# include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
# include <ShapeAnalysis_Edge.hxx>
# include <Standard_Failure.hxx>
# include <Standard_Version.hxx>
@@ -221,6 +227,65 @@ PyObject* TopoShapeEdgePy::valueAt(PyObject *args)
return new Base::VectorPy(new Base::Vector3d(V.X(),V.Y(),V.Z()));
}
PyObject* TopoShapeEdgePy::parameters(PyObject *args)
{
PyObject* pyface = 0;
if (!PyArg_ParseTuple(args, "|O!", &(TopoShapeFacePy::Type), &pyface))
return 0;
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->getShape());
TopLoc_Location aLoc;
Handle(Poly_Polygon3D) aPoly = BRep_Tool::Polygon3D(e, aLoc);
if (!aPoly.IsNull()) {
Py::List list;
if (!aPoly->HasParameters()) {
return Py::new_reference_to(list);
}
const TColStd_Array1OfReal& aNodes = aPoly->Parameters();
for (int i=aNodes.Lower(); i<=aNodes.Upper(); i++) {
list.append(Py::Float(aNodes(i)));
}
return Py::new_reference_to(list);
}
else if (pyface) {
// build up map edge->face
const TopoDS_Shape& face = static_cast<TopoShapeFacePy*>(pyface)->getTopoShapePtr()->getShape();
TopTools_IndexedDataMapOfShapeListOfShape edge2Face;
TopExp::MapShapesAndAncestors(TopoDS::Face(face), TopAbs_EDGE, TopAbs_FACE, edge2Face);
if (edge2Face.Contains(e)) {
Handle(Poly_Triangulation) aPolyTria = BRep_Tool::Triangulation(TopoDS::Face(face),aLoc);
if (!aPolyTria.IsNull()) {
Handle(Poly_PolygonOnTriangulation) aPoly = BRep_Tool::PolygonOnTriangulation(e, aPolyTria, aLoc);
if (!aPoly.IsNull()) {
if (!aPoly->HasParameters()) {
Py::List list;
return Py::new_reference_to(list);
}
Handle(TColStd_HArray1OfReal) aNodes = aPoly->Parameters();
if (!aNodes.IsNull()) {
Py::List list;
for (int i=aNodes->Lower(); i<=aNodes->Upper(); i++) {
list.append(Py::Float(aNodes->Value(i)));
}
return Py::new_reference_to(list);
}
}
}
}
else {
PyErr_SetString(PyExc_ValueError, "Edge is not part of the face");
return 0;
}
}
PyErr_SetString(PyExc_RuntimeError, "Edge has no polygon");
return 0;
}
PyObject* TopoShapeEdgePy::parameterAt(PyObject *args)
{
PyObject* pnt;