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52d65e20851b8134680430a92c1cb59f6ef024c6
create/src/Mod/Part/App/GeometrySurfacePyImp.cpp
wmayer 52d65e2085 + port to OCC 6.5.2 
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5318 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
2011-12-17 12:58:47 +00:00

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/***************************************************************************
* Copyright (c) 2009 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <BRepBuilderAPI_MakeFace.hxx>
# include <gp_Dir.hxx>
# include <gp_Vec.hxx>
# include <Geom_Geometry.hxx>
# include <Geom_Surface.hxx>
# include <GeomConvert_ApproxSurface.hxx>
# include <GeomLProp_SLProps.hxx>
# include <Precision.hxx>
# include <Standard_Failure.hxx>
# include <Standard_Version.hxx>
# include <ShapeAnalysis_Surface.hxx>
#endif
#include <Base/GeometryPyCXX.h>
#include <Base/VectorPy.h>
#include "Geometry.h"
#include "GeometrySurfacePy.h"
#include "GeometrySurfacePy.cpp"
#include "BSplineSurfacePy.h"
#include "TopoShape.h"
#include "TopoShapePy.h"
#include "TopoShapeFacePy.h"
using namespace Part;
// returns a string which represents the object e.g. when printed in python
std::string GeometrySurfacePy::representation(void) const
{
return "<Surface object>";
}
PyObject *GeometrySurfacePy::PyMake(struct _typeobject *, PyObject *, PyObject *) // Python wrapper
{
// never create such objects with the constructor
PyErr_SetString(PyExc_RuntimeError,
"You cannot create an instance of the abstract class 'GeometrySurface'.");
return 0;
}
// constructor method
int GeometrySurfacePy::PyInit(PyObject* /*args*/, PyObject* /*kwd*/)
{
return 0;
}
PyObject* GeometrySurfacePy::toShape(PyObject *args)
{
Handle_Geom_Geometry g = getGeometryPtr()->handle();
Handle_Geom_Surface s = Handle_Geom_Surface::DownCast(g);
try {
if (!s.IsNull()) {
double u1,u2,v1,v2;
s->Bounds(u1,u2,v1,v2);
if (!PyArg_ParseTuple(args, "|dddd", &u1,&u2,&v1,&v2))
return 0;
BRepBuilderAPI_MakeFace mkBuilder(s, u1, u2, v1, v2
#if OCC_VERSION_HEX >= 0x060502
, Precision::Confusion()
#endif
);
TopoDS_Shape sh = mkBuilder.Shape();
return new TopoShapeFacePy(new TopoShape(sh));
}
}
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 surface");
return 0;
}
PyObject* GeometrySurfacePy::value(PyObject *args)
{
Handle_Geom_Geometry g = getGeometryPtr()->handle();
Handle_Geom_Surface s = Handle_Geom_Surface::DownCast(g);
try {
if (!s.IsNull()) {
double u,v;
if (!PyArg_ParseTuple(args, "dd", &u,&v))
return 0;
gp_Pnt p = s->Value(u,v);
return new Base::VectorPy(Base::Vector3d(p.X(),p.Y(),p.Z()));
}
}
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 surface");
return 0;
}
PyObject* GeometrySurfacePy::tangent(PyObject *args)
{
Handle_Geom_Geometry g = getGeometryPtr()->handle();
Handle_Geom_Surface s = Handle_Geom_Surface::DownCast(g);
try {
if (!s.IsNull()) {
double u,v;
if (!PyArg_ParseTuple(args, "dd", &u,&v))
return 0;
gp_Dir dir;
Py::Tuple tuple(2);
GeomLProp_SLProps prop(s,u,v,1,Precision::Confusion());
if (prop.IsTangentUDefined()) {
prop.TangentU(dir);
tuple.setItem(0, Py::Vector(Base::Vector3d(dir.X(),dir.Y(),dir.Z())));
}
if (prop.IsTangentVDefined()) {
prop.TangentV(dir);
tuple.setItem(1, Py::Vector(Base::Vector3d(dir.X(),dir.Y(),dir.Z())));
}
return Py::new_reference_to(tuple);
}
}
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 surface");
return 0;
}
PyObject* GeometrySurfacePy::parameter(PyObject *args)
{
Handle_Geom_Surface surf = Handle_Geom_Surface
::DownCast(getGeometryPtr()->handle());
try {
if (!surf.IsNull()) {
PyObject *p;
double prec = Precision::Confusion();
if (!PyArg_ParseTuple(args, "O!|d", &(Base::VectorPy::Type), &p, &prec))
return 0;
Base::Vector3d v = Py::Vector(p, false).toVector();
gp_Pnt pnt(v.x,v.y,v.z);
ShapeAnalysis_Surface as(surf);
gp_Pnt2d uv = as.ValueOfUV(pnt, prec);
Py::Tuple tuple(2);
tuple.setItem(0, Py::Float(uv.X()));
tuple.setItem(1, Py::Float(uv.Y()));
return Py::new_reference_to(tuple);
}
}
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 surface");
return 0;
}
PyObject* GeometrySurfacePy::bounds(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
Handle_Geom_Surface surf = Handle_Geom_Surface
::DownCast(getGeometryPtr()->handle());
Py::Tuple bound(4);
Standard_Real u1,u2,v1,v2;
surf->Bounds(u1,u2,v1,v2);
bound.setItem(0,Py::Float(u1));
bound.setItem(1,Py::Float(u2));
bound.setItem(2,Py::Float(v1));
bound.setItem(3,Py::Float(v2));
return Py::new_reference_to(bound);
}
PyObject* GeometrySurfacePy::isUPeriodic(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
Standard_Boolean val = surf->IsUPeriodic();
if (val) {
Py_INCREF(Py_True);
return Py_True;
}
else {
Py_INCREF(Py_False);
return Py_False;
}
}
PyObject* GeometrySurfacePy::isVPeriodic(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
Standard_Boolean val = surf->IsVPeriodic();
if (val) {
Py_INCREF(Py_True);
return Py_True;
}
else {
Py_INCREF(Py_False);
return Py_False;
}
}
PyObject* GeometrySurfacePy::isUClosed(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
Standard_Boolean val = surf->IsUClosed();
if (val) {
Py_INCREF(Py_True);
return Py_True;
}
else {
Py_INCREF(Py_False);
return Py_False;
}
}
PyObject* GeometrySurfacePy::isVClosed(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
Standard_Boolean val = surf->IsVClosed();
if (val) {
Py_INCREF(Py_True);
return Py_True;
}
else {
Py_INCREF(Py_False);
return Py_False;
}
}
PyObject* GeometrySurfacePy::UPeriod(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
try {
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
Standard_Real val = surf->UPeriod();
return PyFloat_FromDouble(val);
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
PyErr_SetString(PyExc_Exception, e->GetMessageString());
return 0;
}
}
PyObject* GeometrySurfacePy::VPeriod(PyObject * args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
try {
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
Standard_Real val = surf->VPeriod();
return PyFloat_FromDouble(val);
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
PyErr_SetString(PyExc_Exception, e->GetMessageString());
return 0;
}
}
PyObject* GeometrySurfacePy::toBSpline(PyObject * args)
{
double tol3d;
char *ucont, *vcont;
int maxDegU,maxDegV,maxSegm,prec=0;
if (!PyArg_ParseTuple(args, "dssiii|i",&tol3d,&ucont,&vcont,
&maxDegU,&maxDegV,&maxSegm,&prec))
return 0;
std::string uc = ucont;
GeomAbs_Shape absU, absV;
if (uc == "C0")
absU = GeomAbs_C0;
else if (uc == "C1")
absU = GeomAbs_C1;
else if (uc == "C2")
absU = GeomAbs_C2;
else if (uc == "C3")
absU = GeomAbs_C3;
else if (uc == "CN")
absU = GeomAbs_CN;
else if (uc == "G1")
absU = GeomAbs_G1;
else
absU = GeomAbs_G2;
std::string vc = vcont;
if (vc == "C0")
absV = GeomAbs_C0;
else if (vc == "C1")
absV = GeomAbs_C1;
else if (vc == "C2")
absV = GeomAbs_C2;
else if (vc == "C3")
absV = GeomAbs_C3;
else if (vc == "CN")
absV = GeomAbs_CN;
else if (vc == "G1")
absV = GeomAbs_G1;
else
absV = GeomAbs_G2;
try {
Handle_Geom_Surface surf = Handle_Geom_Surface::DownCast
(getGeometryPtr()->handle());
GeomConvert_ApproxSurface cvt(surf, tol3d, absU, absV, maxDegU, maxDegV, maxSegm, prec);
if (cvt.IsDone() && cvt.HasResult()) {
return new BSplineSurfacePy(new GeomBSplineSurface(cvt.Surface()));
}
else {
Standard_Failure::Raise("Cannot convert to B-Spline surface");
}
}
catch (Standard_Failure) {
Handle_Standard_Failure e = Standard_Failure::Caught();
PyErr_SetString(PyExc_Exception, e->GetMessageString());
}
return 0;
}
PyObject *GeometrySurfacePy::getCustomAttributes(const char* /*attr*/) const
{
return 0;
}
int GeometrySurfacePy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
{
return 0;
}
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