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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 2fd3f1634e
commit 1aa7e55e92
6 changed files with 129 additions and 14 deletions
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25
src/Mod/Part/App/GeometryCurvePyImp.cpp
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@@ -108,22 +108,33 @@ PyObject* GeometryCurvePy::toShape(PyObject *args)
PyObject* GeometryCurvePy::discretize(PyObject *args)
{
double d;
if (!PyArg_ParseTuple(args, "d", &d))
PyObject* defl_or_num;
if (!PyArg_ParseTuple(args, "O", &defl_or_num))
return 0;
Handle_Geom_Geometry g = getGeometryPtr()->handle();
Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
try {
Handle_Geom_Geometry g = getGeometryPtr()->handle();
Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
if (!c.IsNull()) {
GeomAdaptor_Curve curve_adaptator(c);
GeomAdaptor_Curve adapt(c);
GCPnts_UniformAbscissa discretizer;
discretizer.Initialize (curve_adaptator, d);
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 = curve_adaptator.Value (discretizer.Parameter (i));
gp_Pnt p = adapt.Value (discretizer.Parameter (i));
points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
}