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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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32
src/Mod/Part/App/TopoShapeFacePyImp.cpp
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@@ -43,6 +43,7 @@
# include <Geom_ToroidalSurface.hxx>
# include <Geom_Surface.hxx>
# include <Geom2d_Curve.hxx>
# include <Poly_Triangulation.hxx>
# include <TopoDS.hxx>
# include <TopoDS_Face.hxx>
# include <TopoDS_Wire.hxx>
@@ -56,6 +57,7 @@
# include <Standard_Version.hxx>
# include <ShapeFix_Shape.hxx>
# include <ShapeFix_Wire.hxx>
# include <TColgp_Array1OfPnt2d.hxx>
# include <TopExp_Explorer.hxx>
# include <TopTools_IndexedMapOfShape.hxx>
#endif
@@ -433,6 +435,36 @@ PyObject* TopoShapeFacePy::normalAt(PyObject *args)
}
}
PyObject* TopoShapeFacePy::getUVNodes(PyObject *args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
const TopoDS_Face& f = TopoDS::Face(getTopoShapePtr()->getShape());
TopLoc_Location aLoc;
Handle (Poly_Triangulation) mesh = BRep_Tool::Triangulation(f,aLoc);
if (mesh.IsNull()) {
PyErr_SetString(PyExc_RuntimeError, "Face has no triangulation");
return 0;
}
Py::List list;
if (!mesh->HasUVNodes()) {
return Py::new_reference_to(list);
}
const TColgp_Array1OfPnt2d& aNodesUV = mesh->UVNodes();
for (int i=aNodesUV.Lower(); i<=aNodesUV.Upper(); i++) {
gp_Pnt2d pt2d = aNodesUV(i);
Py::Tuple uv(2);
uv.setItem(0, Py::Float(pt2d.X()));
uv.setItem(1, Py::Float(pt2d.Y()));
list.append(uv);
}
return Py::new_reference_to(list);
}
PyObject* TopoShapeFacePy::tangentAt(PyObject *args)
{
double u,v;