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GeometryCurvePyImp.cpp
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GeometryCurvePyImp.cpp
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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 <sstream>
# include <BRepBuilderAPI_MakeEdge.hxx>
# include <gp_Dir.hxx>
# include <gp_Vec.hxx>
# include <gp_Pln.hxx>
# include <gp_Quaternion.hxx>
# include <GCPnts_UniformAbscissa.hxx>
# include <GCPnts_UniformDeflection.hxx>
# include <GCPnts_TangentialDeflection.hxx>
# include <GCPnts_QuasiUniformAbscissa.hxx>
# include <GCPnts_QuasiUniformDeflection.hxx>
# include <GCPnts_AbscissaPoint.hxx>
# include <Geom2dAPI_InterCurveCurve.hxx>
# include <GeomAPI.hxx>
# include <Geom_Geometry.hxx>
# include <Geom_Curve.hxx>
# include <Geom_Plane.hxx>
# include <Geom_Surface.hxx>
# include <GeomAdaptor_Curve.hxx>
# include <GeomFill.hxx>
# include <GeomLProp.hxx>
# include <GeomLProp_CLProps.hxx>
# include <Geom_RectangularTrimmedSurface.hxx>
# include <Geom_BSplineSurface.hxx>
# include <Precision.hxx>
# include <GeomAPI_ProjectPointOnCurve.hxx>
# include <GeomConvert_ApproxCurve.hxx>
# include <Standard_Failure.hxx>
# include <Standard_NullValue.hxx>
# include <ShapeConstruct_Curve.hxx>
# include <GeomAPI_IntCS.hxx>
# include <GeomAPI_ExtremaCurveCurve.hxx>
# include <IntRes2d_IntersectionSegment.hxx>
#endif
#include <Base/GeometryPyCXX.h>
#include <Base/VectorPy.h>
#include "Geometry.h"
#include "GeometryCurvePy.h"
#include "GeometryCurvePy.cpp"
#include "RectangularTrimmedSurfacePy.h"
#include "BSplineSurfacePy.h"
#include "PlanePy.h"
#include "PointPy.h"
#include "BSplineCurvePy.h"
#include "OCCError.h"
#include "TopoShape.h"
#include "TopoShapePy.h"
#include "TopoShapeEdgePy.h"
namespace Part {
extern const Py::Object makeGeometryCurvePy(const Handle(Geom_Curve)& c);
extern const Py::Object makeTrimmedCurvePy(const Handle(Geom_Curve)& c, double f,double l);
}
using namespace Part;
// returns a string which represents the object e.g. when printed in python
std::string GeometryCurvePy::representation(void) const
{
return "<Curve object>";
}
PyObject *GeometryCurvePy::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 'GeometryCurve'.");
return 0;
}
// constructor method
int GeometryCurvePy::PyInit(PyObject* /*args*/, PyObject* /*kwd*/)
{
return 0;
}
PyObject* GeometryCurvePy::toShape(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u,v;
u=c->FirstParameter();
v=c->LastParameter();
if (!PyArg_ParseTuple(args, "|dd", &u,&v))
return 0;
BRepBuilderAPI_MakeEdge mkBuilder(c, u, v);
TopoDS_Shape sh = mkBuilder.Shape();
return new TopoShapeEdgePy(new TopoShape(sh));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::discretize(PyObject *args, PyObject *kwds)
{
try {
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
if (c.IsNull()) {
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
GeomAdaptor_Curve adapt(c);
bool uniformAbscissaPoints = false;
bool uniformAbscissaDistance = false;
int numPoints = -1;
double distance = -1;
double first = adapt.FirstParameter();
double last = adapt.LastParameter();
// use no kwds
PyObject* dist_or_num;
if (PyArg_ParseTuple(args, "O", &dist_or_num)) {
if (PyLong_Check(dist_or_num)) {
numPoints = PyLong_AsLong(dist_or_num);
uniformAbscissaPoints = true;
}
else if (PyFloat_Check(dist_or_num)) {
distance = PyFloat_AsDouble(dist_or_num);
uniformAbscissaDistance = true;
}
else {
PyErr_SetString(PyExc_TypeError, "Either int or float expected");
return 0;
}
}
else {
// use Number kwds
static char* kwds_numPoints[] = {"Number","First","Last",NULL};
PyErr_Clear();
if (PyArg_ParseTupleAndKeywords(args, kwds, "i|dd", kwds_numPoints, &numPoints, &first, &last)) {
uniformAbscissaPoints = true;
}
else {
// use Abscissa kwds
static char* kwds_Distance[] = {"Distance","First","Last",NULL};
PyErr_Clear();
if (PyArg_ParseTupleAndKeywords(args, kwds, "d|dd", kwds_Distance, &distance, &first, &last)) {
uniformAbscissaDistance = true;
}
}
}
if (uniformAbscissaPoints || uniformAbscissaDistance) {
GCPnts_UniformAbscissa discretizer;
if (uniformAbscissaPoints)
discretizer.Initialize (adapt, numPoints, first, last);
else
discretizer.Initialize (adapt, distance, first, last);
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(PartExceptionOCCError, "Discretization of curve failed");
return 0;
}
}
// use Deflection kwds
static char* kwds_Deflection[] = {"Deflection","First","Last",NULL};
PyErr_Clear();
double deflection;
if (PyArg_ParseTupleAndKeywords(args, kwds, "d|dd", kwds_Deflection, &deflection, &first, &last)) {
GCPnts_UniformDeflection discretizer(adapt, deflection, first, last);
if (discretizer.IsDone () && discretizer.NbPoints () > 0) {
Py::List points;
int nbPoints = discretizer.NbPoints ();
for (int i=1; i<=nbPoints; i++) {
gp_Pnt p = discretizer.Value (i);
points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
}
return Py::new_reference_to(points);
}
else {
PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
return 0;
}
}
// use TangentialDeflection kwds
static char* kwds_TangentialDeflection[] = {"Angular","Curvature","First","Last","Minimum",NULL};
PyErr_Clear();
double angular;
double curvature;
int minimumPoints = 2;
if (PyArg_ParseTupleAndKeywords(args, kwds, "dd|ddi", kwds_TangentialDeflection, &angular, &curvature, &first, &last, &minimumPoints)) {
GCPnts_TangentialDeflection discretizer(adapt, first, last, angular, curvature, minimumPoints);
if (discretizer.NbPoints () > 0) {
Py::List points;
int nbPoints = discretizer.NbPoints ();
for (int i=1; i<=nbPoints; i++) {
gp_Pnt p = discretizer.Value (i);
points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
}
return Py::new_reference_to(points);
}
else {
PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
return 0;
}
}
// use QuasiNumber kwds
static char* kwds_QuasiNumPoints[] = {"QuasiNumber","First","Last",NULL};
PyErr_Clear();
int quasiNumPoints;
if (PyArg_ParseTupleAndKeywords(args, kwds, "i|dd", kwds_QuasiNumPoints, &quasiNumPoints, &first, &last)) {
GCPnts_QuasiUniformAbscissa discretizer(adapt, quasiNumPoints, first, last);
if (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(PartExceptionOCCError, "Discretization of curve failed");
return 0;
}
}
// use QuasiDeflection kwds
static char* kwds_QuasiDeflection[] = {"QuasiDeflection","First","Last",NULL};
PyErr_Clear();
double quasiDeflection;
if (PyArg_ParseTupleAndKeywords(args, kwds, "d|dd", kwds_QuasiDeflection, &quasiDeflection, &first, &last)) {
GCPnts_QuasiUniformDeflection discretizer(adapt, quasiDeflection, first, last);
if (discretizer.NbPoints () > 0) {
Py::List points;
int nbPoints = discretizer.NbPoints ();
for (int i=1; i<=nbPoints; i++) {
gp_Pnt p = discretizer.Value (i);
points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
}
return Py::new_reference_to(points);
}
else {
PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
return 0;
}
}
}
catch (const Base::Exception& e) {
PyErr_SetString(PartExceptionOCCError, e.what());
return 0;
}
PyErr_SetString(PartExceptionOCCError,"Wrong arguments");
return 0;
}
PyObject* GeometryCurvePy::length(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u=c->FirstParameter();
double v=c->LastParameter();
double t=Precision::Confusion();
if (!PyArg_ParseTuple(args, "|ddd", &u,&v,&t))
return 0;
GeomAdaptor_Curve adapt(c);
double len = GCPnts_AbscissaPoint::Length(adapt,u,v,t);
return PyFloat_FromDouble(len);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::parameterAtDistance(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double abscissa;
double u = 0;
if (!PyArg_ParseTuple(args, "d|d", &abscissa,&u))
return 0;
GeomAdaptor_Curve adapt(c);
GCPnts_AbscissaPoint abscissaPoint(adapt,abscissa,u);
double parm = abscissaPoint.Parameter();
return PyFloat_FromDouble(parm);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::getD0(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return nullptr;
gp_Pnt p;
c->D0(u, p);
return new Base::VectorPy(Base::Vector3d(p.X(),p.Y(),p.Z()));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return nullptr;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return nullptr;
}
PyObject* GeometryCurvePy::getD1(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return nullptr;
gp_Pnt p;
gp_Vec v;
c->D1(u, p, v);
Py::Tuple tuple(2);
tuple.setItem(0, Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
tuple.setItem(1, Py::Vector(Base::Vector3d(v.X(),v.Y(),v.Z())));
return Py::new_reference_to(tuple);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return nullptr;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return nullptr;
}
PyObject* GeometryCurvePy::getD2(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return nullptr;
gp_Pnt p1;
gp_Vec v1, v2;
c->D2(u, p1, v1, v2);
Py::Tuple tuple(3);
tuple.setItem(0, Py::Vector(Base::Vector3d(p1.X(),p1.Y(),p1.Z())));
tuple.setItem(1, Py::Vector(Base::Vector3d(v1.X(),v1.Y(),v1.Z())));
tuple.setItem(2, Py::Vector(Base::Vector3d(v2.X(),v2.Y(),v2.Z())));
return Py::new_reference_to(tuple);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return nullptr;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return nullptr;
}
PyObject* GeometryCurvePy::getD3(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return nullptr;
gp_Pnt p1;
gp_Vec v1, v2, v3;
c->D3(u, p1, v1, v2, v3);
Py::Tuple tuple(4);
tuple.setItem(0, Py::Vector(Base::Vector3d(p1.X(),p1.Y(),p1.Z())));
tuple.setItem(1, Py::Vector(Base::Vector3d(v1.X(),v1.Y(),v1.Z())));
tuple.setItem(2, Py::Vector(Base::Vector3d(v2.X(),v2.Y(),v2.Z())));
tuple.setItem(3, Py::Vector(Base::Vector3d(v3.X(),v3.Y(),v3.Z())));
return Py::new_reference_to(tuple);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return nullptr;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return nullptr;
}
PyObject* GeometryCurvePy::getDN(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
int n;
double u;
if (!PyArg_ParseTuple(args, "di", &u, &n))
return nullptr;
gp_Vec v = c->DN(u, n);
return new Base::VectorPy(Base::Vector3d(v.X(),v.Y(),v.Z()));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return nullptr;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return nullptr;
}
PyObject* GeometryCurvePy::value(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return 0;
gp_Pnt p = c->Value(u);
return new Base::VectorPy(Base::Vector3d(p.X(),p.Y(),p.Z()));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::tangent(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return 0;
gp_Dir dir;
Py::Tuple tuple(1);
GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
if (prop.IsTangentDefined()) {
prop.Tangent(dir);
tuple.setItem(0, Py::Vector(Base::Vector3d(dir.X(),dir.Y(),dir.Z())));
}
return Py::new_reference_to(tuple);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::normal(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return 0;
gp_Dir dir;
GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
prop.Normal(dir);
return new Base::VectorPy(new Base::Vector3d(dir.X(),dir.Y(),dir.Z()));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::curvature(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return 0;
GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
double C = prop.Curvature();
return Py::new_reference_to(Py::Float(C));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::centerOfCurvature(PyObject *args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u;
if (!PyArg_ParseTuple(args, "d", &u))
return 0;
GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
gp_Pnt V ;
prop.CentreOfCurvature(V);
return new Base::VectorPy(new Base::Vector3d(V.X(),V.Y(),V.Z()));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::parameter(PyObject *args)
{
try {
PyObject *p;
if (!PyArg_ParseTuple(args, "O!", &(Base::VectorPy::Type), &p))
return 0;
Base::Vector3d v = Py::Vector(p, false).toVector();
double u;
if (static_cast<Part::GeomCurve *>(getGeometryPtr())->closestParameter(v,u))
return Py::new_reference_to(Py::Float(u));
}
catch (Base::CADKernelError& e) {
PyErr_SetString(PartExceptionOCCError, e.what());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::makeRuledSurface(PyObject *args)
{
PyObject* curve;
if (!PyArg_ParseTuple(args, "O!", &(Part::GeometryCurvePy::Type), &curve))
return 0;
try {
Handle(Geom_Curve) aCrv1 = Handle(Geom_Curve)::DownCast(getGeometryPtr()->handle());
GeometryCurvePy* c = static_cast<GeometryCurvePy*>(curve);
Handle(Geom_Curve) aCrv2 = Handle(Geom_Curve)::DownCast(c->getGeometryPtr()->handle());
Handle(Geom_Surface) aSurf = GeomFill::Surface (aCrv1, aCrv2);
if (aSurf.IsNull()) {
PyErr_SetString(PartExceptionOCCError, "Failed to create ruled surface");
return 0;
}
// check the result surface type
if (aSurf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
Handle(Geom_RectangularTrimmedSurface) aTSurf =
Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurf);
return new RectangularTrimmedSurfacePy(new GeomTrimmedSurface(aTSurf));
}
else if (aSurf->IsKind(STANDARD_TYPE(Geom_BSplineSurface))) {
Handle(Geom_BSplineSurface) aBSurf =
Handle(Geom_BSplineSurface)::DownCast(aSurf);
return new BSplineSurfacePy(new GeomBSplineSurface(aBSurf));
}
else {
PyErr_Format(PyExc_NotImplementedError, "Ruled surface is of type '%s'",
aSurf->DynamicType()->Name());
return 0;
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
}
PyObject* GeometryCurvePy::intersect2d(PyObject *args)
{
PyObject *c,*p;
if (!PyArg_ParseTuple(args, "O!O!", &(Part::GeometryCurvePy::Type), &c,
&(Part::PlanePy::Type), &p))
return 0;
try {
Handle(Geom_Curve) self = Handle(Geom_Curve)::DownCast(getGeometryPtr()->handle());
Handle(Geom_Curve) curv = Handle(Geom_Curve)::DownCast(static_cast<GeometryPy*>(c)->
getGeometryPtr()->handle());
Handle(Geom_Plane) plane = Handle(Geom_Plane)::DownCast(static_cast<GeometryPy*>(p)->
getGeometryPtr()->handle());
Handle(Geom2d_Curve) curv1 = GeomAPI::To2d(self, plane->Pln());
Handle(Geom2d_Curve) curv2 = GeomAPI::To2d(curv, plane->Pln());
Geom2dAPI_InterCurveCurve intCC(curv1, curv2);
int nbPoints = intCC.NbPoints();
Py::List list;
for (int i=1; i<= nbPoints; i++) {
gp_Pnt2d pt = intCC.Point(i);
Py::Tuple tuple(2);
tuple.setItem(0, Py::Float(pt.X()));
tuple.setItem(1, Py::Float(pt.Y()));
list.append(tuple);
}
if (intCC.NbSegments() > 0) {
// See also Curve2dPy::intersectCC() that uses Geom2dAPI_ExtremaCurveCurve
const Geom2dInt_GInter& gInter = intCC.Intersector();
for (int i=1; i <= gInter.NbSegments(); i++) {
const IntRes2d_IntersectionSegment& segm = gInter.Segment(i);
if (segm.HasFirstPoint()) {
const IntRes2d_IntersectionPoint& fp = segm.FirstPoint();
gp_Pnt2d pt = fp.Value();
Py::Tuple tuple(2);
tuple.setItem(0, Py::Float(pt.X()));
tuple.setItem(1, Py::Float(pt.Y()));
list.append(tuple);
}
}
}
return Py::new_reference_to(list);
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
}
PyObject* GeometryCurvePy::toBSpline(PyObject * args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u,v;
u=c->FirstParameter();
v=c->LastParameter();
if (!PyArg_ParseTuple(args, "|dd", &u,&v))
return 0;
GeomBSplineCurve* spline = getGeomCurvePtr()->toBSpline(u, v);
return new BSplineCurvePy(spline);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::toNurbs(PyObject * args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u,v;
u=c->FirstParameter();
v=c->LastParameter();
if (!PyArg_ParseTuple(args, "|dd", &u,&v))
return 0;
GeomBSplineCurve* spline = getGeomCurvePtr()->toNurbs(u, v);
return new BSplineCurvePy(spline);
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::trim(PyObject * args)
{
Handle(Geom_Geometry) g = getGeometryPtr()->handle();
Handle(Geom_Curve) c = Handle(Geom_Curve)::DownCast(g);
try {
if (!c.IsNull()) {
double u,v;
u=c->FirstParameter();
v=c->LastParameter();
if (!PyArg_ParseTuple(args, "|dd", &u,&v))
return 0;
return Py::new_reference_to(makeTrimmedCurvePy(c,u,v));
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
PyObject* GeometryCurvePy::approximateBSpline(PyObject *args)
{
double tolerance;
int maxSegment, maxDegree;
char* order = "C2";
if (!PyArg_ParseTuple(args, "dii|s", &tolerance, &maxSegment, &maxDegree, &order))
return 0;
GeomAbs_Shape absShape;
std::string str = order;
if (str == "C0")
absShape = GeomAbs_C0;
else if (str == "G1")
absShape = GeomAbs_G1;
else if (str == "C1")
absShape = GeomAbs_C1;
else if (str == "G2")
absShape = GeomAbs_G2;
else if (str == "C2")
absShape = GeomAbs_C2;
else if (str == "C3")
absShape = GeomAbs_C3;
else if (str == "CN")
absShape = GeomAbs_CN;
else
absShape = GeomAbs_C2;
try {
Handle(Geom_Curve) self = Handle(Geom_Curve)::DownCast(getGeometryPtr()->handle());
GeomConvert_ApproxCurve approx(self, tolerance, absShape, maxSegment, maxDegree);
if (approx.IsDone()) {
return new BSplineCurvePy(new GeomBSplineCurve(approx.Curve()));
}
else if (approx.HasResult()) {
std::stringstream str;
str << "Maximum error (" << approx.MaxError() << ") is outside tolerance";
PyErr_SetString(PyExc_RuntimeError, str.str().c_str());
return 0;
}
else {
PyErr_SetString(PyExc_RuntimeError, "Approximation of curve failed");
return 0;
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
}
PyObject* GeometryCurvePy::continuityWith(PyObject *args)
{
double u1 = -1.0, u2 = -1.0;
double tl = -1.0, ta = -1.0;
PyObject* curve;
PyObject* rev1 = Py_False;
PyObject* rev2 = Py_False;
if (!PyArg_ParseTuple(args, "O!|ddO!O!dd",
&GeometryCurvePy::Type, &curve,
&u1, &u2,
&PyBool_Type, &rev1,
&PyBool_Type, &rev2,
&tl, &ta))
return nullptr;
Handle(Geom_Geometry) g1 = getGeometryPtr()->handle();
Handle(Geom_Curve) c1 = Handle(Geom_Curve)::DownCast(g1);
Handle(Geom_Geometry) g2 = static_cast<GeometryCurvePy*>(curve)->getGeomCurvePtr()->handle();
Handle(Geom_Curve) c2 = Handle(Geom_Curve)::DownCast(g2);
// if no parameter value is given then by default use the end of the parameter range
if (u1 < 0.0)
u1 = c1->LastParameter();
// if no parameter value is given then by default use the start of the parameter range
if (u2 < 0.0)
u2 = c2->FirstParameter();
Standard_Boolean r1 = PyObject_IsTrue(rev1) ? Standard_True : Standard_False;
Standard_Boolean r2 = PyObject_IsTrue(rev2) ? Standard_True : Standard_False;
try {
if (!c1.IsNull() && !c2.IsNull()) {
GeomAbs_Shape c;
if (tl >= 0.0 && ta >= 0.0)
c = GeomLProp::Continuity(c1, c2, u1, u2, r1, r2, tl, ta);
else
c = GeomLProp::Continuity(c1, c2, u1, u2, r1, r2);
std::string str;
switch (c) {
case GeomAbs_C0:
str = "C0";
break;
case GeomAbs_G1:
str = "G1";
break;
case GeomAbs_C1:
str = "C1";
break;
case GeomAbs_G2:
str = "G2";
break;
case GeomAbs_C2:
str = "C2";
break;
case GeomAbs_C3:
str = "C3";
break;
case GeomAbs_CN:
str = "CN";
break;
default:
str = "Unknown";
break;
}
return Py_BuildValue("s", str.c_str());
}
}
catch (Standard_Failure& e) {
PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
return 0;
}
PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
return 0;
}
Py::String GeometryCurvePy::getContinuity(void) const
{
GeomAbs_Shape c = Handle(Geom_Curve)::DownCast
(getGeometryPtr()->handle())->Continuity();
std::string str;
switch (c) {
case GeomAbs_C0:
str = "C0";
break;
case GeomAbs_G1:
str = "G1";
break;
case GeomAbs_C1:
str = "C1";
break;
case GeomAbs_G2:
str = "G2";
break;
case GeomAbs_C2:
str = "C2";
break;
case GeomAbs_C3:
str = "C3";
break;
case GeomAbs_CN:
str = "CN";
break;
default:
str = "Unknown";
break;
}
return Py::String(str);
}
Py::Float GeometryCurvePy::getFirstParameter(void) const
{
return Py::Float(Handle(Geom_Curve)::DownCast
(getGeometryPtr()->handle())->FirstParameter());
}
Py::Float GeometryCurvePy::getLastParameter(void) const
{
return Py::Float(Handle(Geom_Curve)::DownCast
(getGeometryPtr()->handle())->LastParameter());
}
PyObject *GeometryCurvePy::getCustomAttributes(const char* /*attr*/) const
{
return 0;
}
int GeometryCurvePy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
{
return 0;
}
// Specialized intersection functions
PyObject* GeometryCurvePy::intersectCS(PyObject *args)
{
Handle(Geom_Curve) curve = Handle(Geom_Curve)::DownCast(getGeometryPtr()->handle());
try {
if (!curve.IsNull()) {
PyObject *p;
double prec = Precision::Confusion();
if (!PyArg_ParseTuple(args, "O!|d", &(Part::GeometrySurfacePy::Type), &p, &prec))
return 0;
Handle(Geom_Surface) surf = Handle(Geom_Surface)::DownCast(static_cast<GeometryPy*>(p)->getGeometryPtr()->handle());
GeomAPI_IntCS intersector(curve, surf);
if (!intersector.IsDone()) {
PyErr_SetString(PyExc_RuntimeError, "Intersection of curve and surface failed");
return 0;
}
Py::List points;
for (int i = 1; i <= intersector.NbPoints(); i++) {
gp_Pnt p = intersector.Point(i);
points.append(Py::asObject(new PointPy(new GeomPoint(Base::Vector3d(p.X(), p.Y(), p.Z())))));
}
Py::List segments;
for (int i = 1; i <= intersector.NbSegments(); i++) {
Handle(Geom_Curve) seg = intersector.Segment(i);
segments.append(makeGeometryCurvePy(seg));
}
Py::Tuple tuple(2);
tuple.setItem(0, points);