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+ add method getPolesAndWeights() to NURBS surfaces and curves

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This commit is contained in:
wmayer 2015-05-09 00:58:07 +02:00
parent 814c144ecb
commit fbdfeef2a3
4 changed files with 78 additions and 0 deletions
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5
src/Mod/Part/App/BSplineCurvePy.xml
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@ -201,6 +201,11 @@ to the pole of index Index in the poles table.</UserDocu>
<UserDocu>Get all weights of the B-Spline curve.</UserDocu>
</Documentation>
</Methode>
<Methode Name="getPolesAndWeights">
<Documentation>
<UserDocu>Returns the table of poles and weights in homogenous ccordinates.</UserDocu>
</Documentation>
</Methode>
<Methode Name="getResolution" Const="true">
<Documentation>
<UserDocu>Computes for this B-Spline curve the parametric tolerance (UTolerance)

32
src/Mod/Part/App/BSplineCurvePyImp.cpp
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@ -435,6 +435,38 @@ PyObject* BSplineCurvePy::getPoles(PyObject * args)
}
}
PyObject* BSplineCurvePy::getPolesAndWeights(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
try {
Handle_Geom_BSplineCurve curve = Handle_Geom_BSplineCurve::DownCast
(getGeometryPtr()->handle());
TColgp_Array1OfPnt p(1,curve->NbPoles());
curve->Poles(p);
TColStd_Array1OfReal w(1,curve->NbPoles());
curve->Weights(w);
Py::List poles;
for (Standard_Integer i=p.Lower(); i<=p.Upper(); i++) {
gp_Pnt pnt = p(i);
double weight = w(i);
Py::Tuple t(4);
t.setItem(0, Py::Float(pnt.X()));
t.setItem(1, Py::Float(pnt.Y()));
t.setItem(2, Py::Float(pnt.Z()));
t.setItem(3, Py::Float(weight));
poles.append(t);
}
return Py::new_reference_to(poles);
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
return 0;
}
}
PyObject* BSplineCurvePy::setWeight(PyObject * args)
{
int index;

5
src/Mod/Part/App/BSplineSurfacePy.xml
View File

@ -491,6 +491,11 @@
<UserDocu>Returns the table of weights of the poles for this B-Spline surface.</UserDocu>
</Documentation>
</Methode>
<Methode Name="getPolesAndWeights">
<Documentation>
<UserDocu>Returns the table of poles and weights in homogenous ccordinates.</UserDocu>
</Documentation>
</Methode>
<Methode Name="getResolution" Const="true">
<Documentation>
<UserDocu>

36
src/Mod/Part/App/BSplineSurfacePyImp.cpp
View File

@ -917,6 +917,42 @@ PyObject* BSplineSurfacePy::getWeights(PyObject *args)
}
}
PyObject* BSplineSurfacePy::getPolesAndWeights(PyObject *args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
try {
Handle_Geom_BSplineSurface surf = Handle_Geom_BSplineSurface::DownCast
(getGeometryPtr()->handle());
TColgp_Array2OfPnt p(1,surf->NbUPoles(),1,surf->NbVPoles());
surf->Poles(p);
TColStd_Array2OfReal w(1,surf->NbUPoles(),1,surf->NbVPoles());
surf->Weights(w);
Py::List poles;
for (Standard_Integer i=p.LowerRow(); i<=p.UpperRow(); i++) {
Py::List row;
for (Standard_Integer j=p.LowerCol(); j<=p.UpperCol(); j++) {
const gp_Pnt& pole = p(i,j);
double weight = w(i,j);
Py::Tuple t(4);
t.setItem(0, Py::Float(pole.X()));
t.setItem(1, Py::Float(pole.Y()));
t.setItem(2, Py::Float(pole.Z()));
t.setItem(3, Py::Float(weight));
row.append(t);
}
poles.append(row);
}
return Py::new_reference_to(poles);
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
return 0;
}
}
PyObject* BSplineSurfacePy::getResolution(PyObject *args)
{
double tol;