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+ unify DLL export defines to namespace names

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git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
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wmayer
2011-10-10 13:44:52 +00:00
commit 120ca87015
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src/Mod/MeshPart/App/Mesher.cpp Normal file
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/***************************************************************************
* Copyright (c) 2010 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"
#include "Mesher.h"
#include <Base/Exception.h>
#include <Mod/Mesh/App/Mesh.h>
#include <TopoDS_Shape.hxx>
#ifdef HAVE_SMESH
#include <SMESH_Gen.hxx>
#include <StdMeshers_MaxLength.hxx>
#include <StdMeshers_LocalLength.hxx>
#include <StdMeshers_NumberOfSegments.hxx>
#include <StdMeshers_AutomaticLength.hxx>
#include <StdMeshers_TrianglePreference.hxx>
#include <StdMeshers_MEFISTO_2D.hxx>
#include <StdMeshers_Deflection1D.hxx>
#include <StdMeshers_MaxElementArea.hxx>
#include <StdMeshers_Regular_1D.hxx>
#include <StdMeshers_QuadranglePreference.hxx>
#include <StdMeshers_Quadrangle_2D.hxx>
#include <StdMeshers_LengthFromEdges.hxx>
#include <StdMeshers_NotConformAllowed.hxx>
#include <StdMeshers_Arithmetic1D.hxx>
#endif // HAVE_SMESH
using namespace MeshPart;
Mesher::Mesher(const TopoDS_Shape& s)
: shape(s), maxLength(0), maxArea(0), localLength(0),
regular(false)
{
}
Mesher::~Mesher()
{
}
Mesh::MeshObject* Mesher::createMesh() const
{
#ifndef HAVE_SMESH
throw Base::Exception("SMESH is not available on this platform");
#else
std::list<SMESH_Hypothesis*> hypoth;
SMESH_Gen* meshgen = new SMESH_Gen();
SMESH_Mesh* mesh = meshgen->CreateMesh(0, true);
int hyp=0;
if (maxLength > 0) {
StdMeshers_MaxLength* hyp1d = new StdMeshers_MaxLength(hyp++, 0, meshgen);
hyp1d->SetLength(maxLength);
hypoth.push_back(hyp1d);
}
if (localLength > 0) {
StdMeshers_LocalLength* hyp1d = new StdMeshers_LocalLength(hyp++,0,meshgen);
hyp1d->SetLength(localLength);
hypoth.push_back(hyp1d);
}
if (maxArea > 0) {
StdMeshers_MaxElementArea* hyp2d = new StdMeshers_MaxElementArea(hyp++,0,meshgen);
hyp2d->SetMaxArea(1.0f);
hypoth.push_back(hyp2d);
}
{
StdMeshers_NumberOfSegments* hyp1d = new StdMeshers_NumberOfSegments(hyp++,0,meshgen);
hyp1d->SetNumberOfSegments(1);
hypoth.push_back(hyp1d);
}
// if none of the above hypothesis were applied
if (hypoth.empty()) {
StdMeshers_AutomaticLength* hyp1d = new StdMeshers_AutomaticLength(hyp++,0,meshgen);
hypoth.push_back(hyp1d);
}
if (deflection > 0) {
StdMeshers_Deflection1D* hyp1d = new StdMeshers_Deflection1D(hyp++,0,meshgen);
hyp1d->SetDeflection(deflection);
hypoth.push_back(hyp1d);
}
if (regular) {
StdMeshers_Regular_1D* hyp1d = new StdMeshers_Regular_1D(hyp++,0,meshgen);
hypoth.push_back(hyp1d);
}
#if 1
StdMeshers_TrianglePreference* hyp2d_1 = new StdMeshers_TrianglePreference(hyp++,0,meshgen);
hypoth.push_back(hyp2d_1);
StdMeshers_MEFISTO_2D* alg2d = new StdMeshers_MEFISTO_2D(hyp++,0,meshgen);
hypoth.push_back(alg2d);
#else
StdMeshers_QuadranglePreference hyp2d_1(hyp++,0,meshgen);
StdMeshers_Quadrangle_2D alg2d(hyp++,0,meshgen);
#endif
// Apply the hypothesis and create the mesh
mesh->ShapeToMesh(shape);
for (int i=0; i<hyp;i++)
mesh->AddHypothesis(shape, i);
meshgen->Compute(*mesh, mesh->GetShapeToMesh());
// build up the mesh structure
SMDS_FaceIteratorPtr aFaceIter = mesh->GetMeshDS()->facesIterator();
SMDS_NodeIteratorPtr aNodeIter = mesh->GetMeshDS()->nodesIterator();
MeshCore::MeshPointArray verts;
MeshCore::MeshFacetArray faces;
verts.reserve(mesh->NbNodes());
faces.reserve(mesh->NbFaces());
int index=0;
std::map<const SMDS_MeshNode*, int> mapNodeIndex;
for (;aNodeIter->more();) {
const SMDS_MeshNode* aNode = aNodeIter->next();
MeshCore::MeshPoint p;
p.Set((float)aNode->X(), (float)aNode->Y(), (float)aNode->Z());
verts.push_back(p);
mapNodeIndex[aNode] = index++;
}
for (;aFaceIter->more();) {
const SMDS_MeshFace* aFace = aFaceIter->next();
MeshCore::MeshFacet f;
for (int i=0; i<3;i++) {
const SMDS_MeshNode* node = aFace->GetNode(i);
//int index = node->GetID() - 1;
f._aulPoints[i] = /*index*/mapNodeIndex[node];
}
faces.push_back(f);
}
// clean up
//FIXME: Why can't we delete this object?
#if defined(__GNUC__)
delete meshgen; // crashes with MSVC
#endif
TopoDS_Shape aNull;
mesh->ShapeToMesh(aNull);
mesh->Clear();
delete mesh;
for (std::list<SMESH_Hypothesis*>::iterator it = hypoth.begin(); it != hypoth.end(); ++it)
delete *it;
MeshCore::MeshKernel kernel;
kernel.Adopt(verts, faces, true);
Mesh::MeshObject* meshdata = new Mesh::MeshObject();
meshdata->swap(kernel);
return meshdata;
#endif // HAVE_SMESH
}