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+ implement Python interface to discretize wires or edge with given deflection or number of points

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git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5423 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
This commit is contained in:
wmayer
2012-01-24 15:23:58 +00:00
parent 108aeec88e
commit 3933c6b109
6 changed files with 129 additions and 14 deletions
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47
src/Mod/Part/App/TopoShapeEdgePyImp.cpp
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@@ -53,6 +53,7 @@
#include <BRepGProp.hxx>
#include <GProp_GProps.hxx>
#include <GCPnts_AbscissaPoint.hxx>
#include <GCPnts_UniformAbscissa.hxx>
#include <Base/VectorPy.h>
#include <Base/GeometryPyCXX.h>
@@ -396,6 +397,52 @@ PyObject* TopoShapeEdgePy::derivative3At(PyObject *args)
}
}
PyObject* TopoShapeEdgePy::discretize(PyObject *args)
{
PyObject* defl_or_num;
if (!PyArg_ParseTuple(args, "O", &defl_or_num))
return 0;
try {
BRepAdaptor_Curve adapt(TopoDS::Edge(getTopoShapePtr()->_Shape));
GCPnts_UniformAbscissa discretizer;
if (PyInt_Check(defl_or_num)) {
int num = PyInt_AsLong(defl_or_num);
discretizer.Initialize (adapt, num);
}
else if (PyFloat_Check(defl_or_num)) {
double defl = PyFloat_AsDouble(defl_or_num);
discretizer.Initialize (adapt, defl);
}
else {
PyErr_SetString(PyExc_TypeError, "Either int or float expected");
return 0;
}
if (discretizer.IsDone () && discretizer.NbPoints () > 0) {
Py::List points;
int nbPoints = discretizer.NbPoints ();
for (int i=1; i<=nbPoints; i++) {
gp_Pnt p = adapt.Value (discretizer.Parameter (i));
points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
}
return Py::new_reference_to(points);
}
else {
PyErr_SetString(PyExc_Exception, "Descretization of curve failed");
return 0;
}
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
PyErr_SetString(PyExc_Exception, e->GetMessageString());
return 0;
}
PyErr_SetString(PyExc_Exception, "Geometry is not a curve");
return 0;
}
PyObject* TopoShapeEdgePy::setTolerance(PyObject *args)
{
double tol;