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// This file is part of ff3d - http://www.freefem.org/ff3d
// Copyright (C) 2001, 2002, 2003 Stphane Del Pino
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// $Id: MeshReader.cpp,v 1.21 2007/05/11 09:45:44 delpinux Exp $
#include <MeshReader.hpp>
#include <SurfaceMeshOfTriangles.hpp>
#include <SurfaceMeshOfQuadrangles.hpp>
#include <MeshOfHexahedra.hpp>
#include <MeshOfTetrahedra.hpp>
#include <MeshOfTriangles.hpp>
MeshReader::MeshReader(const std::string & s)
: MeshGenerator(),
__ifh(NULL),
__fileName(s),
__vertices(0),
__hexahedra(0),
__quadrilaterals(0),
__tetrahedra(0),
__triangles(0)
{
__ifh = fopen(__fileName.c_str(),"r");
if (__ifh == NULL) {
throw MeshReader::Error("cannot open file '"+__fileName+"'");
}
}
MeshReader::~MeshReader()
{
if (__ifh != NULL) {
fclose(__ifh);
}
}
void
MeshReader::__createMesh()
{
ReferenceCounting<VerticesCorrespondance> correspondance
= new VerticesCorrespondance((*__vertices).numberOfVertices());
if (__hexahedra != 0) {
SurfaceMeshOfQuadrangles* quadrilaterals = 0;
if (__quadrilaterals != 0) {
quadrilaterals = new SurfaceMeshOfQuadrangles(__vertices,
correspondance,
__quadrilaterals);
}
MeshOfHexahedra* m
= new MeshOfHexahedra(__vertices,
correspondance,
__hexahedra,
quadrilaterals);
__mesh = m;
ffout(3) << "- Number of Hexahedra: " << (*__hexahedra).size() << '\n';
return;
}
if (__tetrahedra != 0) {
SurfaceMeshOfTriangles* triangles = 0;
if (__triangles != 0) {
triangles = new SurfaceMeshOfTriangles(__vertices,
correspondance,
__triangles);
}
MeshOfTetrahedra* m
= new MeshOfTetrahedra(__vertices,
correspondance,
__tetrahedra,
triangles);
__mesh = m;
ffout(3) << "- Number of Tetrahedra: " << (*__tetrahedra).size() << '\n';
return;
}
if (__triangles != 0) {
for (size_t i=0; i<__vertices->numberOfVertices();++i) {
const Vertex& v = (*__vertices)[i];
if (v[2] != 0) {
SurfaceMeshOfTriangles* m
= new SurfaceMeshOfTriangles(__vertices,
correspondance,
__triangles);
__mesh = m;
ffout(3) << "- Number of Triangles: " << __triangles->size() << '\n';
return;
}
}
// If we get there: the mesh is a planar mesh
MeshOfTriangles* m
= new MeshOfTriangles(__vertices,
correspondance,
__triangles);
__mesh = m;
ffout(3) << "- Number of Triangles: " << __triangles->size() << '\n';
return;
}
if (__quadrilaterals != 0) {
SurfaceMeshOfQuadrangles* m
= new SurfaceMeshOfQuadrangles(__vertices,
correspondance,
__quadrilaterals);
__mesh = m;
ffout(3) << "- Number of Quadrilaterals: " << (*__quadrilaterals).size() << '\n';
return;
}
}
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