mirror of https://github.com/CGAL/cgal
258 lines
8.3 KiB
C++
258 lines
8.3 KiB
C++
// Copyright (c) 2020 GeometryFactory (France). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Maxime Gimeno
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#ifndef CGAL_BOOST_GRAPH_POLYGON_MESH_IO_H
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#define CGAL_BOOST_GRAPH_POLYGON_MESH_IO_H
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#include <CGAL/boost/graph/io.h>
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#include <CGAL/IO/helpers.h>
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#include <fstream>
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#include <string>
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namespace CGAL {
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////////////////////////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Read
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//not for now : some readers will return "ok" despite not managing to read anything
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/*
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template <class Graph, typename NamedParameters>
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bool read_polygon_mesh(std::istream& is,
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Graph& g,
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const NamedParameters& np)
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{
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bool ok = false;
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ok = read_OFF(is, g, np, false);
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if(ok)
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return true;
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g.clear();
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is.clear();//reset the error state
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is.seekg (0, is.beg);
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ok = read_OBJ(is, g, np, false);
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if(ok)
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return true;
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g.clear();
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is.clear();
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is.seekg (0, is.beg);
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ok = read_PLY(is, g, np, false);
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if(ok)
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return true;
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g.clear();
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is.clear();
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is.seekg (0, is.beg);
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ok = read_STL(is, g, np, false);
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if(ok)
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return true;
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g.clear();
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is.clear();
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is.seekg (0, is.beg);
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ok = read_GOCAD(is, g, np, false);
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return ok;
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}
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template <class Graph>
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bool read_polygon_mesh(std::istream& is,
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Graph& g)
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{
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return read_polygon_mesh(is, g, parameters::all_default());
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}
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*/
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/*!
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* \ingroup PkgBGLIOFct
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*
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* \brief reads a polygon mesh from a file.
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*
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* \tparam Graph a model of `MutableFaceGraph`
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* \tparam NamedParameters a sequence of \ref bgl_namedparameters "Named Parameters"
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*
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* \param fname the name of the file. Its extension must be one of the following :
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* `.off` (\ref IOStreamOFF "OFF file format") , `.obj` (\ref IOStreamOBJ "OBJ file format"),
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* `.stl` (\ref IOStreamSTL "STL file format"), `.ply` (\ref IOStreamPLY "PLY file format"),
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* `.vtp` (\ref IOStreamVTK "VTP file format") or `.ts` (\ref IOStreamGocad "GOCAD file format").
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* \param g the mesh
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* \param verbose whether extra information is printed when an incident occurs during reading
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* \param np optional \ref bgl_namedparameters "Named Parameters" described below
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*
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* \cgalNamedParamsBegin
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* \cgalParamNBegin{vertex_point_map}
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* \cgalParamDescription{a property map associating points to the vertices of `g`}
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* \cgalParamType{a class model of `ReadWritePropertyMap` with `boost::graph_traits<Graph>::%vertex_descriptor`
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* as key type and `%Point_3` as value type}
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* \cgalParamDefault{`boost::get(CGAL::vertex_point, g)`}
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* \cgalParamExtra{If this parameter is omitted, an internal property map for `CGAL::vertex_point_t`
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* must be available in `Graph`.}
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* \cgalParamNEnd
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* \cgalNamedParamsEnd
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*
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* Other named parameters may be used according to the file extension, see \ref PkgBGLIOFct for an exhaustive list.
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*
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* \pre The data must represent a 2-manifold
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*
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* \return `true` if reading was successful, `false` otherwise.
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*/
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template <class Graph, typename NamedParameters>
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bool read_polygon_mesh(const std::string& fname,
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Graph& g,
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const NamedParameters& np,
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const bool verbose = false)
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{
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const std::string ext = IO::internal::get_file_extension(fname);
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if(ext == std::string())
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{
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if(verbose)
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std::cerr << "Error: cannot read from file without extension" << std::endl;
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return false;
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}
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if(ext == "obj")
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return read_OBJ(fname, g, np);
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else if(ext == "off")
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return read_OFF(fname, g, np);
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else if(ext == "ply")
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return read_PLY(fname, g, np);
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else if(ext == "stl")
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return read_STL(fname, g, np);
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else if(ext == "ts")
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return read_GOCAD(fname, g, np);
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#ifdef CGAL_USE_VTK
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else if(ext == "vtp")
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return read_VTP(fname, g, np);
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#endif
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if(verbose)
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{
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std::cerr << "Error: unknown input file extension: " << ext << "\n"
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<< "Please refer to the documentation for the list of supported file formats" << std::endl;
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}
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return false;
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}
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template <class Graph>
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bool read_polygon_mesh(const std::string& fname, Graph& g)
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{
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return read_polygon_mesh(fname, g, parameters::all_default());
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}
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template <class Graph, typename NamedParameters>
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bool read_polygon_mesh(const char* fname, Graph& g, const NamedParameters& np)
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{
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return read_polygon_mesh(std::string(fname), g, np);
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}
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template <class Graph>
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bool read_polygon_mesh(const char* fname, Graph& g)
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{
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return read_polygon_mesh(fname, g, parameters::all_default());
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Write
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/*!
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* \ingroup PkgBGLIOFct
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*
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* \brief writes a polygon mesh in a file.
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*
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* \tparam Graph a model of `FaceListGraph` and `HalfedgeListGraph`
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* \tparam NamedParameters a sequence of \ref bgl_namedparameters "Named Parameters"
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*
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* \param fname the name of the file. Its extension must be one of the following :
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* `.off` (\ref IOStreamOFF "OFF file format") , `.obj` (\ref IOStreamOBJ "OBJ file format"),
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* `.stl` (\ref IOStreamSTL "STL file format"), `.ply` (\ref IOStreamPLY "PLY file format"),
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* `.vtp` (\ref IOStreamVTK "VTP file format") or `.ts` (\ref IOStreamGocad "GOCAD file format").
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* \param g the mesh to be output
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* \param verbose whether extra information is printed when an incident occurs during writing
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* \param np optional \ref bgl_namedparameters "Named Parameters" described below
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*
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* \cgalNamedParamsBegin
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* \cgalParamNBegin{vertex_point_map}
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* \cgalParamDescription{a property map associating points to the vertices of `g`}
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* \cgalParamType{a class model of `ReadablePropertyMap` with `boost::graph_traits<Graph>::%vertex_descriptor`
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* as key type and `%Point_3` as value type}
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* \cgalParamDefault{`boost::get(CGAL::vertex_point, g)`}
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* \cgalParamExtra{If this parameter is omitted, an internal property map for `CGAL::vertex_point_t`
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* must be available in `Graph`.}
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* \cgalParamNEnd
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*
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* \cgalParamNBegin{stream_precision}
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* \cgalParamDescription{a parameter used to set the precision (i.e. how many digits are generated) of the output stream}
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* \cgalParamType{int}
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* \cgalParamDefault{`6`}
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* \cgalParamNEnd
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* \cgalNamedParamsEnd
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*
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* Other named parameters may be used according to the file extension, see \ref PkgBGLIOFct for an exhaustive list.
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*
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* \return `true` if writing was successful, `false` otherwise.
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*/
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template <class Graph, typename NamedParameters>
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bool write_polygon_mesh(const std::string& fname,
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Graph& g,
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const NamedParameters& np,
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const bool verbose = false)
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{
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const std::string ext = IO::internal::get_file_extension(fname);
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if(ext == std::string())
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{
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if(verbose)
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std::cerr << "Error: trying to output to file without extension" << std::endl;
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return false;
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}
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if(ext == "obj")
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return write_OBJ(fname, g, np);
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else if(ext == "off")
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return write_OFF(fname, g, np);
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else if(ext == "ply")
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return write_PLY(fname, g, np);
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else if(ext == "stl")
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return write_STL(fname, g, np);
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else if(ext == "ts")
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return write_GOCAD(fname, g, np);
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#ifdef CGAL_USE_VTK
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else if(ext == "vtp")
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return write_VTP(fname, g, np);
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#endif
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if(verbose)
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{
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std::cerr << "Error: unknown output file extension: " << ext << "\n"
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<< "Please refer to the documentation for the list of supported file formats" << std::endl;
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}
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return false;
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}
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template <class Graph>
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bool write_polygon_mesh(const std::string& fname, Graph& g)
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{
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return write_polygon_mesh(fname, g, parameters::all_default());
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}
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template <class Graph, typename NamedParameters>
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bool write_polygon_mesh(const char* fname, Graph& g, const NamedParameters& np)
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{
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return write_polygon_mesh(std::string(fname), g, np);
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}
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template <class Graph>
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bool write_polygon_mesh(const char* fname, Graph& g)
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{
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return write_polygon_mesh(fname, g, parameters::all_default());
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}
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} // namespace CGAL
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#endif // CGAL_BOOST_GRAPH_POLYGON_MESH_IO_H
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