827 lines
29 KiB
C++
827 lines
29 KiB
C++
/***************************************************************************
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* Copyright (c) 2009 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <sstream>
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# include <BRepBuilderAPI_MakeEdge.hxx>
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# include <gp_Dir.hxx>
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# include <gp_Vec.hxx>
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# include <gp_Pln.hxx>
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# include <GCPnts_UniformAbscissa.hxx>
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# include <GCPnts_UniformDeflection.hxx>
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# include <GCPnts_TangentialDeflection.hxx>
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# include <GCPnts_QuasiUniformAbscissa.hxx>
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# include <GCPnts_QuasiUniformDeflection.hxx>
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# include <GCPnts_AbscissaPoint.hxx>
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# include <Geom2dAPI_InterCurveCurve.hxx>
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# include <GeomAPI.hxx>
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# include <Geom_Geometry.hxx>
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# include <Geom_Curve.hxx>
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# include <Geom_Plane.hxx>
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# include <Geom_Surface.hxx>
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# include <GeomAdaptor_Curve.hxx>
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# include <GeomFill.hxx>
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# include <GeomLProp_CLProps.hxx>
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# include <Geom_RectangularTrimmedSurface.hxx>
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# include <Geom_BSplineSurface.hxx>
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# include <Precision.hxx>
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# include <GeomAPI_ProjectPointOnCurve.hxx>
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# include <GeomConvert_ApproxCurve.hxx>
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# include <Standard_Failure.hxx>
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# include <Standard_NullValue.hxx>
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# include <ShapeConstruct_Curve.hxx>
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# include <GeomAPI_IntCS.hxx>
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# include <GeomAPI_ExtremaCurveCurve.hxx>
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#endif
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#include <Base/GeometryPyCXX.h>
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#include <Base/VectorPy.h>
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#include "Geometry.h"
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#include "GeometryCurvePy.h"
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#include "GeometryCurvePy.cpp"
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#include "RectangularTrimmedSurfacePy.h"
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#include "BSplineSurfacePy.h"
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#include "PlanePy.h"
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#include "PointPy.h"
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#include "BSplineCurvePy.h"
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#include "OCCError.h"
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#include "TopoShape.h"
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#include "TopoShapePy.h"
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#include "TopoShapeEdgePy.h"
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namespace Part {
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extern const Py::Object makeGeometryCurvePy(const Handle_Geom_Curve& c);
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}
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using namespace Part;
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// returns a string which represents the object e.g. when printed in python
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std::string GeometryCurvePy::representation(void) const
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{
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return "<Curve object>";
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}
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PyObject *GeometryCurvePy::PyMake(struct _typeobject *, PyObject *, PyObject *) // Python wrapper
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{
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// never create such objects with the constructor
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PyErr_SetString(PyExc_RuntimeError,
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"You cannot create an instance of the abstract class 'GeometryCurve'.");
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return 0;
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}
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// constructor method
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int GeometryCurvePy::PyInit(PyObject* /*args*/, PyObject* /*kwd*/)
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{
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return 0;
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}
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PyObject* GeometryCurvePy::toShape(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double u,v;
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u=c->FirstParameter();
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v=c->LastParameter();
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if (!PyArg_ParseTuple(args, "|dd", &u,&v))
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return 0;
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BRepBuilderAPI_MakeEdge mkBuilder(c, u, v);
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TopoDS_Shape sh = mkBuilder.Shape();
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return new TopoShapeEdgePy(new TopoShape(sh));
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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PyObject* GeometryCurvePy::discretize(PyObject *args, PyObject *kwds)
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{
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try {
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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if (c.IsNull()) {
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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GeomAdaptor_Curve adapt(c);
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bool uniformAbscissaPoints = false;
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bool uniformAbscissaDistance = false;
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int numPoints = -1;
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double distance = -1;
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double first = adapt.FirstParameter();
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double last = adapt.LastParameter();
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// use no kwds
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PyObject* dist_or_num;
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if (PyArg_ParseTuple(args, "O", &dist_or_num)) {
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if (PyInt_Check(dist_or_num)) {
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numPoints = PyInt_AsLong(dist_or_num);
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uniformAbscissaPoints = true;
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}
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else if (PyFloat_Check(dist_or_num)) {
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distance = PyFloat_AsDouble(dist_or_num);
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uniformAbscissaDistance = true;
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}
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else {
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PyErr_SetString(PyExc_TypeError, "Either int or float expected");
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return 0;
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}
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}
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else {
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// use Number kwds
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static char* kwds_numPoints[] = {"Number","First","Last",NULL};
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PyErr_Clear();
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if (PyArg_ParseTupleAndKeywords(args, kwds, "i|dd", kwds_numPoints, &numPoints, &first, &last)) {
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uniformAbscissaPoints = true;
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}
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else {
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// use Abscissa kwds
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static char* kwds_Distance[] = {"Distance","First","Last",NULL};
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PyErr_Clear();
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if (PyArg_ParseTupleAndKeywords(args, kwds, "d|dd", kwds_Distance, &distance, &first, &last)) {
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uniformAbscissaDistance = true;
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}
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}
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}
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if (uniformAbscissaPoints || uniformAbscissaDistance) {
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GCPnts_UniformAbscissa discretizer;
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if (uniformAbscissaPoints)
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discretizer.Initialize (adapt, numPoints, first, last);
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else
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discretizer.Initialize (adapt, distance, first, last);
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if (discretizer.IsDone () && discretizer.NbPoints () > 0) {
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Py::List points;
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int nbPoints = discretizer.NbPoints ();
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for (int i=1; i<=nbPoints; i++) {
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gp_Pnt p = adapt.Value (discretizer.Parameter (i));
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points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
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}
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return Py::new_reference_to(points);
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}
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else {
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PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
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return 0;
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}
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}
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// use Deflection kwds
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static char* kwds_Deflection[] = {"Deflection","First","Last",NULL};
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PyErr_Clear();
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double deflection;
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if (PyArg_ParseTupleAndKeywords(args, kwds, "d|dd", kwds_Deflection, &deflection, &first, &last)) {
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GCPnts_UniformDeflection discretizer(adapt, deflection, first, last);
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if (discretizer.IsDone () && discretizer.NbPoints () > 0) {
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Py::List points;
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int nbPoints = discretizer.NbPoints ();
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for (int i=1; i<=nbPoints; i++) {
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gp_Pnt p = discretizer.Value (i);
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points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
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}
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return Py::new_reference_to(points);
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}
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else {
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PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
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return 0;
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}
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}
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// use TangentialDeflection kwds
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static char* kwds_TangentialDeflection[] = {"Angular","Curvature","First","Last","Minimum",NULL};
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PyErr_Clear();
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double angular;
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double curvature;
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int minimumPoints = 2;
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if (PyArg_ParseTupleAndKeywords(args, kwds, "dd|ddi", kwds_TangentialDeflection, &angular, &curvature, &first, &last, &minimumPoints)) {
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GCPnts_TangentialDeflection discretizer(adapt, first, last, angular, curvature, minimumPoints);
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if (discretizer.NbPoints () > 0) {
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Py::List points;
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int nbPoints = discretizer.NbPoints ();
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for (int i=1; i<=nbPoints; i++) {
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gp_Pnt p = discretizer.Value (i);
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points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
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}
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return Py::new_reference_to(points);
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}
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else {
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PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
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return 0;
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}
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}
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// use QuasiNumber kwds
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static char* kwds_QuasiNumPoints[] = {"QuasiNumber","First","Last",NULL};
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PyErr_Clear();
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int quasiNumPoints;
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if (PyArg_ParseTupleAndKeywords(args, kwds, "i|dd", kwds_QuasiNumPoints, &quasiNumPoints, &first, &last)) {
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GCPnts_QuasiUniformAbscissa discretizer(adapt, quasiNumPoints, first, last);
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if (discretizer.NbPoints () > 0) {
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Py::List points;
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int nbPoints = discretizer.NbPoints ();
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for (int i=1; i<=nbPoints; i++) {
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gp_Pnt p = adapt.Value (discretizer.Parameter (i));
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points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
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}
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return Py::new_reference_to(points);
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}
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else {
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PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
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return 0;
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}
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}
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// use QuasiDeflection kwds
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static char* kwds_QuasiDeflection[] = {"QuasiDeflection","First","Last",NULL};
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PyErr_Clear();
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double quasiDeflection;
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if (PyArg_ParseTupleAndKeywords(args, kwds, "d|dd", kwds_QuasiDeflection, &quasiDeflection, &first, &last)) {
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GCPnts_QuasiUniformDeflection discretizer(adapt, quasiDeflection, first, last);
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if (discretizer.NbPoints () > 0) {
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Py::List points;
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int nbPoints = discretizer.NbPoints ();
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for (int i=1; i<=nbPoints; i++) {
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gp_Pnt p = discretizer.Value (i);
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points.append(Py::Vector(Base::Vector3d(p.X(),p.Y(),p.Z())));
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}
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return Py::new_reference_to(points);
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}
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else {
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PyErr_SetString(PartExceptionOCCError, "Discretization of curve failed");
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return 0;
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}
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}
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}
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catch (const Base::Exception& e) {
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PyErr_SetString(PartExceptionOCCError, e.what());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError,"Wrong arguments");
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return 0;
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}
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PyObject* GeometryCurvePy::length(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double u=c->FirstParameter();
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double v=c->LastParameter();
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double t=Precision::Confusion();
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if (!PyArg_ParseTuple(args, "|ddd", &u,&v,&t))
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return 0;
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GeomAdaptor_Curve adapt(c);
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double len = GCPnts_AbscissaPoint::Length(adapt,u,v,t);
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return PyFloat_FromDouble(len);
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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PyObject* GeometryCurvePy::parameterAtDistance(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double abscissa;
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double u = 0;
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if (!PyArg_ParseTuple(args, "d|d", &abscissa,&u))
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return 0;
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GeomAdaptor_Curve adapt(c);
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GCPnts_AbscissaPoint abscissaPoint(adapt,abscissa,u);
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double parm = abscissaPoint.Parameter();
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return PyFloat_FromDouble(parm);
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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PyObject* GeometryCurvePy::value(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double u;
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if (!PyArg_ParseTuple(args, "d", &u))
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return 0;
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gp_Pnt p = c->Value(u);
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return new Base::VectorPy(Base::Vector3d(p.X(),p.Y(),p.Z()));
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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PyObject* GeometryCurvePy::tangent(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double u;
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if (!PyArg_ParseTuple(args, "d", &u))
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return 0;
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gp_Dir dir;
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Py::Tuple tuple(1);
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GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
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if (prop.IsTangentDefined()) {
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prop.Tangent(dir);
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tuple.setItem(0, Py::Vector(Base::Vector3d(dir.X(),dir.Y(),dir.Z())));
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}
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return Py::new_reference_to(tuple);
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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PyObject* GeometryCurvePy::normal(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double u;
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if (!PyArg_ParseTuple(args, "d", &u))
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return 0;
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gp_Dir dir;
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GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
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prop.Normal(dir);
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return new Base::VectorPy(new Base::Vector3d(dir.X(),dir.Y(),dir.Z()));
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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PyObject* GeometryCurvePy::curvature(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
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if (!c.IsNull()) {
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double u;
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if (!PyArg_ParseTuple(args, "d", &u))
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return 0;
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GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
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double C = prop.Curvature();
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return Py::new_reference_to(Py::Float(C));
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}
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
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}
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
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return 0;
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}
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|
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PyObject* GeometryCurvePy::centerOfCurvature(PyObject *args)
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{
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
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try {
|
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if (!c.IsNull()) {
|
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double u;
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if (!PyArg_ParseTuple(args, "d", &u))
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return 0;
|
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GeomLProp_CLProps prop(c,u,2,Precision::Confusion());
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gp_Pnt V ;
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prop.CentreOfCurvature(V);
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return new Base::VectorPy(new Base::Vector3d(V.X(),V.Y(),V.Z()));
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}
|
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}
|
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catch (Standard_Failure) {
|
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Handle_Standard_Failure e = Standard_Failure::Caught();
|
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PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
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return 0;
|
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}
|
|
|
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PyErr_SetString(PartExceptionOCCError, "Geometry is not a curve");
|
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return 0;
|
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}
|
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|
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PyObject* GeometryCurvePy::parameter(PyObject *args)
|
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{
|
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Handle_Geom_Geometry g = getGeometryPtr()->handle();
|
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Handle_Geom_Curve c = Handle_Geom_Curve::DownCast(g);
|
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try {
|
|
if (!c.IsNull()) {
|
|
PyObject *p;
|
|
if (!PyArg_ParseTuple(args, "O!", &(Base::VectorPy::Type), &p))
|
|
return 0;
|
|
Base::Vector3d v = Py::Vector(p, false).toVector();
|
|
gp_Pnt pnt(v.x,v.y,v.z);
|
|
GeomAPI_ProjectPointOnCurve ppc(pnt, c);
|
|
double val = ppc.LowerDistanceParameter();
|
|
return Py::new_reference_to(Py::Float(val));
|
|
}
|
|
}
|
|
catch (Standard_Failure) {
|
|
Handle_Standard_Failure e = Standard_Failure::Caught();
|
|
PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
|
|
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) {
|
|
Handle_Standard_Failure e = Standard_Failure::Caught();
|
|
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);
|
|
}
|
|
return Py::new_reference_to(list);
|
|
}
|
|
catch (Standard_Failure) {
|
|
Handle_Standard_Failure e = Standard_Failure::Caught();
|
|
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;
|
|
ShapeConstruct_Curve scc;
|
|
Handle_Geom_BSplineCurve spline = scc.ConvertToBSpline(c, u, v, Precision::Confusion());
|
|
if (spline.IsNull())
|
|
Standard_NullValue::Raise("Conversion to B-Spline failed");
|
|
return new BSplineCurvePy(new GeomBSplineCurve(spline));
|
|
}
|
|
}
|
|
catch (Standard_Failure) {
|
|
Handle_Standard_Failure e = Standard_Failure::Caught();
|
|
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) {
|
|
Handle_Standard_Failure e = Standard_Failure::Caught();
|
|
PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
|
|
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_Exception, "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::Object(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);
|
|
tuple.setItem(1, segments);
|
|
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 curve");
|
|
return 0;
|
|
}
|
|
|
|
PyObject* GeometryCurvePy::intersectCC(PyObject *args)
|
|
{
|
|
Handle_Geom_Curve curve1 = Handle_Geom_Curve::DownCast(getGeometryPtr()->handle());
|
|
try {
|
|
if (!curve1.IsNull()) {
|
|
PyObject *p;
|
|
double prec = Precision::Confusion();
|
|
if (!PyArg_ParseTuple(args, "O!|d", &(Part::GeometryCurvePy::Type), &p, &prec))
|
|
return 0;
|
|
Handle_Geom_Curve curve2 = Handle_Geom_Curve::DownCast(static_cast<GeometryPy*>(p)->getGeometryPtr()->handle());
|
|
GeomAPI_ExtremaCurveCurve intersector(curve1, curve2);
|
|
if (intersector.LowerDistance() > Precision::Confusion()) {
|
|
// No intersection
|
|
return Py::new_reference_to(Py::List());
|
|
}
|
|
|
|
Py::List points;
|
|
for (int i = 1; i <= intersector.NbExtrema(); i++) {
|
|
if (intersector.Distance(i) > Precision::Confusion())
|
|
continue;
|
|
gp_Pnt p1, p2;
|
|
intersector.Points(i, p1, p2);
|
|
points.append(Py::Object(new PointPy(new GeomPoint(Base::Vector3d(p1.X(), p1.Y(), p1.Z())))));
|
|
}
|
|
|
|
return Py::new_reference_to(points);
|
|
}
|
|
}
|
|
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 curve");
|
|
return 0;
|
|
}
|
|
|
|
// General intersection function
|
|
|
|
PyObject* GeometryCurvePy::intersect(PyObject *args)
|
|
{
|
|
Handle_Geom_Curve curve = Handle_Geom_Curve::DownCast(getGeometryPtr()->handle());
|
|
try {
|
|
if (!curve.IsNull()) {
|
|
PyObject *p;
|
|
double prec = Precision::Confusion();
|
|
try {
|
|
if (PyArg_ParseTuple(args, "O!|d", &(Part::GeometryCurvePy::Type), &p, &prec))
|
|
return intersectCC(args);
|
|
} catch(...) {}
|
|
PyErr_Clear();
|
|
|
|
if (PyArg_ParseTuple(args, "O!|d", &(Part::GeometrySurfacePy::Type), &p, &prec))
|
|
return intersectCS(args);
|
|
else
|
|
return 0;
|
|
}
|
|
}
|
|
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 curve");
|
|
return 0;
|
|
}
|