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+ add methods to get GProps from curves and surfaces

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This commit is contained in:
wmayer
2015-03-22 18:39:49 +01:00
parent f6e36c49fd
commit 897591f765
8 changed files with 514 additions and 21 deletions
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80
src/Mod/Part/App/TopoShapeShellPyImp.cpp
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@@ -26,6 +26,9 @@
# include <gp_Ax1.hxx>
# include <BRep_Builder.hxx>
# include <BRepCheck_Analyzer.hxx>
# include <BRepGProp.hxx>
# include <GProp_GProps.hxx>
# include <GProp_PrincipalProps.hxx>
# include <TopoDS.hxx>
# include <TopoDS_Shell.hxx>
# include <ShapeUpgrade_ShellSewing.hxx>
@@ -38,6 +41,7 @@
#include <Base/GeometryPyCXX.h>
#include "OCCError.h"
#include "Tools.h"
#include "TopoShape.h"
#include "TopoShapeCompoundPy.h"
#include "TopoShapeCompSolidPy.h"
@@ -198,6 +202,82 @@ PyObject* TopoShapeShellPy::makeHalfSpace(PyObject *args)
}
}
Py::Object TopoShapeShellPy::getMass(void) const
{
GProp_GProps props;
BRepGProp::SurfaceProperties(getTopoShapePtr()->_Shape, props);
double c = props.Mass();
return Py::Float(c);
}
Py::Object TopoShapeShellPy::getCenterOfMass(void) const
{
GProp_GProps props;
BRepGProp::SurfaceProperties(getTopoShapePtr()->_Shape, props);
gp_Pnt c = props.CentreOfMass();
return Py::Vector(Base::Vector3d(c.X(),c.Y(),c.Z()));
}
Py::Object TopoShapeShellPy::getMatrixOfInertia(void) const
{
GProp_GProps props;
BRepGProp::SurfaceProperties(getTopoShapePtr()->_Shape, props);
gp_Mat m = props.MatrixOfInertia();
Base::Matrix4D mat;
for (int i=0; i<3; i++) {
for (int j=0; j<3; j++) {
mat[i][j] = m(i+1,j+1);
}
}
return Py::Matrix(mat);
}
Py::Object TopoShapeShellPy::getStaticMoments(void) const
{
GProp_GProps props;
BRepGProp::SurfaceProperties(getTopoShapePtr()->_Shape, props);
Standard_Real lx,ly,lz;
props.StaticMoments(lx,ly,lz);
Py::Tuple tuple(3);
tuple.setItem(0, Py::Float(lx));
tuple.setItem(1, Py::Float(ly));
tuple.setItem(2, Py::Float(lz));
return tuple;
}
Py::Dict TopoShapeShellPy::getPrincipalProperties(void) const
{
GProp_GProps props;
BRepGProp::SurfaceProperties(getTopoShapePtr()->_Shape, props);
GProp_PrincipalProps pprops = props.PrincipalProperties();
Py::Dict dict;
dict.setItem("SymmetryAxis", Py::Boolean(pprops.HasSymmetryAxis() ? true : false));
dict.setItem("SymmetryPoint", Py::Boolean(pprops.HasSymmetryPoint() ? true : false));
Standard_Real lx,ly,lz;
pprops.Moments(lx,ly,lz);
Py::Tuple tuple(3);
tuple.setItem(0, Py::Float(lx));
tuple.setItem(1, Py::Float(ly));
tuple.setItem(2, Py::Float(lz));
dict.setItem("Moments",tuple);
dict.setItem("FirstAxisOfInertia",Py::Vector(Base::convertTo
<Base::Vector3d>(pprops.FirstAxisOfInertia())));
dict.setItem("SecondAxisOfInertia",Py::Vector(Base::convertTo
<Base::Vector3d>(pprops.SecondAxisOfInertia())));
dict.setItem("ThirdAxisOfInertia",Py::Vector(Base::convertTo
<Base::Vector3d>(pprops.ThirdAxisOfInertia())));
Standard_Real Rxx,Ryy,Rzz;
pprops.RadiusOfGyration(Rxx,Ryy,Rzz);
Py::Tuple rog(3);
rog.setItem(0, Py::Float(Rxx));
rog.setItem(1, Py::Float(Ryy));
rog.setItem(2, Py::Float(Rzz));
dict.setItem("RadiusOfGyration",rog);
return dict;
}
PyObject *TopoShapeShellPy::getCustomAttributes(const char* /*attr*/) const
{
return 0;