296 lines
10 KiB
C++
296 lines
10 KiB
C++
/***************************************************************************
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* Copyright (c) 2008 Jürgen Riegel <juergen.riegel@web.de> *
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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 <gp_Ax1.hxx>
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# include <BRep_Builder.hxx>
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# include <BRepCheck_Analyzer.hxx>
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# include <BRepGProp.hxx>
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# include <BRepPrimAPI_MakeHalfSpace.hxx>
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# include <GProp_GProps.hxx>
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# include <GProp_PrincipalProps.hxx>
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# include <TopoDS.hxx>
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# include <TopoDS_Shell.hxx>
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# include <ShapeUpgrade_ShellSewing.hxx>
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# include <ShapeAnalysis_Shell.hxx>
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# include <BRepPrimAPI_MakeHalfSpace.hxx>
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#endif
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#include <Base/VectorPy.h>
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#include <Base/GeometryPyCXX.h>
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#include "OCCError.h"
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#include "Tools.h"
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#include "TopoShape.h"
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#include "TopoShapeCompoundPy.h"
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#include "TopoShapeCompSolidPy.h"
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#include "TopoShapeFacePy.h"
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#include "TopoShapeShellPy.h"
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#include "TopoShapeShellPy.cpp"
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#include "TopoShapeSolidPy.h"
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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 TopoShapeShellPy::representation(void) const
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{
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// Note: As the return type is 'const char*' we cannot create a temporary
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// char array neither on the stack because the array would be freed when
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// leaving the scope nor on the heap because we would have a memory leak.
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// So we use a static array that is used by all instances of this class.
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// This, however, is not a problem as long as we only use this method in
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// _repr().
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std::stringstream str;
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str << "<Shell object at " << getTopoShapePtr() << ">";
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return str.str();
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}
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PyObject *TopoShapeShellPy::PyMake(struct _typeobject *, PyObject *, PyObject *)
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{
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// create a new instance of TopoShapeSolidPy and the Twin object
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return new TopoShapeShellPy(new TopoShape);
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}
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// constructor method
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int TopoShapeShellPy::PyInit(PyObject* args, PyObject* /*kwd*/)
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{
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if (PyArg_ParseTuple(args, "")) {
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// Undefined Shell
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getTopoShapePtr()->setShape(TopoDS_Shell());
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return 0;
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}
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PyErr_Clear();
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PyObject *obj;
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if (!PyArg_ParseTuple(args, "O", &obj))
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return -1;
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BRep_Builder builder;
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TopoDS_Shape shape;
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TopoDS_Shell shell;
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//BRepOffsetAPI_Sewing mkShell;
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builder.MakeShell(shell);
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try {
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Py::Sequence list(obj);
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for (Py::Sequence::iterator it = list.begin(); it != list.end(); ++it) {
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if (PyObject_TypeCheck((*it).ptr(), &(Part::TopoShapeFacePy::Type))) {
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const TopoDS_Shape& sh = static_cast<TopoShapeFacePy*>((*it).ptr())->
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getTopoShapePtr()->getShape();
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if (!sh.IsNull())
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builder.Add(shell, sh);
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}
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}
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shape = shell;
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BRepCheck_Analyzer check(shell);
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if (!check.IsValid()) {
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ShapeUpgrade_ShellSewing sewShell;
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shape = sewShell.ApplySewing(shell);
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}
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if (shape.IsNull())
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Standard_Failure::Raise("Shape is null");
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if (shape.ShapeType() != TopAbs_SHELL)
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Standard_Failure::Raise("Shape is not a shell");
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}
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catch (Standard_Failure& e) {
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PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
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return -1;
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}
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getTopoShapePtr()->setShape(shape);
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return 0;
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}
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PyObject* TopoShapeShellPy::add(PyObject *args)
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{
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PyObject *obj;
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if (!PyArg_ParseTuple(args, "O!", &(Part::TopoShapeFacePy::Type), &obj))
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return NULL;
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BRep_Builder builder;
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TopoDS_Shape shell = getTopoShapePtr()->getShape();
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try {
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const TopoDS_Shape& sh = static_cast<TopoShapeFacePy*>(obj)->
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getTopoShapePtr()->getShape();
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if (!sh.IsNull()) {
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builder.Add(shell, sh);
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BRepCheck_Analyzer check(shell);
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if (!check.IsValid()) {
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ShapeUpgrade_ShellSewing sewShell;
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getTopoShapePtr()->setShape(sewShell.ApplySewing(shell));
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}
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}
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else {
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Standard_Failure::Raise("cannot add empty shape");
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}
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}
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catch (Standard_Failure& e) {
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PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
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return 0;
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}
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getTopoShapePtr()->setShape(shell);
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Py_Return;
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}
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PyObject* TopoShapeShellPy::getFreeEdges(PyObject *args)
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{
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if (!PyArg_ParseTuple(args, ""))
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return NULL;
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ShapeAnalysis_Shell as;
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as.LoadShells(getTopoShapePtr()->getShape());
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#if OCC_VERSION_HEX < 0x060500
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as.CheckOrientedShells(getTopoShapePtr()->getShape(), Standard_True);
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#else
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as.CheckOrientedShells(getTopoShapePtr()->getShape(), Standard_True, Standard_True);
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#endif
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TopoDS_Compound comp = as.FreeEdges();
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return new TopoShapeCompoundPy(new TopoShape(comp));
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}
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PyObject* TopoShapeShellPy::getBadEdges(PyObject *args)
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{
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if (!PyArg_ParseTuple(args, ""))
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return NULL;
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ShapeAnalysis_Shell as;
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as.LoadShells(getTopoShapePtr()->getShape());
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#if OCC_VERSION_HEX < 0x060500
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as.CheckOrientedShells(getTopoShapePtr()->getShape(), Standard_True);
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#else
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as.CheckOrientedShells(getTopoShapePtr()->getShape(), Standard_True, Standard_True);
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#endif
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TopoDS_Compound comp = as.BadEdges();
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return new TopoShapeCompoundPy(new TopoShape(comp));
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}
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PyObject* TopoShapeShellPy::makeHalfSpace(PyObject *args)
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{
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PyObject* pPnt;
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if (!PyArg_ParseTuple(args, "O!",&(Base::VectorPy::Type),&pPnt))
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return 0;
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try {
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Base::Vector3d pt = Py::Vector(pPnt,false).toVector();
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BRepPrimAPI_MakeHalfSpace mkHS(TopoDS::Shell(this->getTopoShapePtr()->getShape()), gp_Pnt(pt.x,pt.y,pt.z));
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return new TopoShapeSolidPy(new TopoShape(mkHS.Solid()));
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}
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catch (Standard_Failure& e) {
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PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
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return 0;
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}
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}
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Py::Object TopoShapeShellPy::getMass(void) const
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{
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GProp_GProps props;
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BRepGProp::SurfaceProperties(getTopoShapePtr()->getShape(), props);
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double c = props.Mass();
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return Py::Float(c);
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}
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Py::Object TopoShapeShellPy::getCenterOfMass(void) const
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{
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GProp_GProps props;
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BRepGProp::SurfaceProperties(getTopoShapePtr()->getShape(), props);
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gp_Pnt c = props.CentreOfMass();
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return Py::Vector(Base::Vector3d(c.X(),c.Y(),c.Z()));
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}
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Py::Object TopoShapeShellPy::getMatrixOfInertia(void) const
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{
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GProp_GProps props;
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BRepGProp::SurfaceProperties(getTopoShapePtr()->getShape(), props);
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gp_Mat m = props.MatrixOfInertia();
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Base::Matrix4D mat;
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for (int i=0; i<3; i++) {
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for (int j=0; j<3; j++) {
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mat[i][j] = m(i+1,j+1);
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}
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}
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return Py::Matrix(mat);
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}
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Py::Object TopoShapeShellPy::getStaticMoments(void) const
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{
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GProp_GProps props;
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BRepGProp::SurfaceProperties(getTopoShapePtr()->getShape(), props);
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Standard_Real lx,ly,lz;
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props.StaticMoments(lx,ly,lz);
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Py::Tuple tuple(3);
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tuple.setItem(0, Py::Float(lx));
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tuple.setItem(1, Py::Float(ly));
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tuple.setItem(2, Py::Float(lz));
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return tuple;
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}
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Py::Dict TopoShapeShellPy::getPrincipalProperties(void) const
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{
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GProp_GProps props;
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BRepGProp::SurfaceProperties(getTopoShapePtr()->getShape(), props);
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GProp_PrincipalProps pprops = props.PrincipalProperties();
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Py::Dict dict;
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dict.setItem("SymmetryAxis", Py::Boolean(pprops.HasSymmetryAxis() ? true : false));
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dict.setItem("SymmetryPoint", Py::Boolean(pprops.HasSymmetryPoint() ? true : false));
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Standard_Real lx,ly,lz;
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pprops.Moments(lx,ly,lz);
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Py::Tuple tuple(3);
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tuple.setItem(0, Py::Float(lx));
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tuple.setItem(1, Py::Float(ly));
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tuple.setItem(2, Py::Float(lz));
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dict.setItem("Moments",tuple);
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dict.setItem("FirstAxisOfInertia",Py::Vector(Base::convertTo
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<Base::Vector3d>(pprops.FirstAxisOfInertia())));
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dict.setItem("SecondAxisOfInertia",Py::Vector(Base::convertTo
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<Base::Vector3d>(pprops.SecondAxisOfInertia())));
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dict.setItem("ThirdAxisOfInertia",Py::Vector(Base::convertTo
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<Base::Vector3d>(pprops.ThirdAxisOfInertia())));
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Standard_Real Rxx,Ryy,Rzz;
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pprops.RadiusOfGyration(Rxx,Ryy,Rzz);
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Py::Tuple rog(3);
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rog.setItem(0, Py::Float(Rxx));
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rog.setItem(1, Py::Float(Ryy));
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rog.setItem(2, Py::Float(Rzz));
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dict.setItem("RadiusOfGyration",rog);
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return dict;
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}
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PyObject *TopoShapeShellPy::getCustomAttributes(const char* /*attr*/) const
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{
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return 0;
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}
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int TopoShapeShellPy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
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{
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return 0;
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}
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