mirror of https://github.com/CGAL/cgal
400 lines
9.1 KiB
C++
400 lines
9.1 KiB
C++
// Copyright (c) 2018 GeometryFactory Sarl (France).
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// All rights reserved.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0+
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//
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// Author(s) : Maxime Gimeno
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#ifndef CGAL_IO_WKT_H
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#define CGAL_IO_WKT_H
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#include <CGAL/Point_2.h>
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#include <CGAL/Point_3.h>
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#include <CGAL/Polygon_2.h>
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#include <CGAL/Polygon_with_holes_2.h>
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#if BOOST_VERSION >= 105600 || BOOST_GCC < 40500
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#include <iostream>
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#include <sstream>
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#include <string>
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#include <boost/geometry/io/wkt/read.hpp>
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#include <boost/geometry/io/wkt/write.hpp>
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#include <boost/foreach.hpp>
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#include <CGAL/IO/traits_point.h>
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#include <CGAL/IO/traits_point_3.h>
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#include <CGAL/IO/traits_linestring.h>
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#include <CGAL/IO/traits_polygon.h>
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#include <CGAL/IO/traits_multipoint.h>
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#include <CGAL/IO/traits_multilinestring.h>
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#include <CGAL/IO/traits_multipolygon.h>
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namespace CGAL{
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template<typename Point>
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std::istream&
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read_point_WKT( std::istream& in,
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Point& point)
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{
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if(!in)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return in;
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}
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std::string line;
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while(std::getline(in, line))
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{
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std::istringstream iss(line);
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std::string type;
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iss >> type;
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if(type.substr(0, 5).compare("POINT")==0)
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{
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boost::geometry::read_wkt(line, point);
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break;
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}
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}
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return in;
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}
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template<typename MultiPoint>
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std::istream&
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read_multi_point_WKT( std::istream& in,
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MultiPoint& mp)
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{
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if(!in)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return in;
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}
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internal::Geometry_container<MultiPoint, boost::geometry::multi_point_tag> gc(mp);
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std::string line;
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while(std::getline(in, line))
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{
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std::istringstream iss(line);
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std::string type;
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iss >> type;
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if(type.substr(0, 10).compare("MULTIPOINT")==0)
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{
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boost::geometry::read_wkt(line, gc);
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break;
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}
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}
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return in;
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}
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template<typename LineString>
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std::istream&
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read_linestring_WKT( std::istream& in,
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LineString& polyline)
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{
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if(!in)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return in;
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}
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internal::Geometry_container<LineString, boost::geometry::linestring_tag> gc(polyline);
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std::string line;
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while(std::getline(in, line))
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{
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std::istringstream iss(line);
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std::string type;
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iss >> type;
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if(type.substr(0, 10).compare("LINESTRING")==0)
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{
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boost::geometry::read_wkt(line, gc);
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break;
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}
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}
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return in;
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}
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template<typename MultiLineString>
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std::istream&
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read_multi_linestring_WKT( std::istream& in,
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MultiLineString& mls)
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{
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if(!in)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return in;
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}
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typedef typename MultiLineString::value_type PointRange;
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typedef internal::Geometry_container<PointRange, boost::geometry::linestring_tag> LineString;
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std::vector<LineString> pr_range;
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internal::Geometry_container<std::vector<LineString>, boost::geometry::multi_linestring_tag> gc(pr_range);
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std::string line;
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while(std::getline(in, line))
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{
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std::istringstream iss(line);
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std::string type;
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iss >> type;
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if(type.substr(0, 15).compare("MULTILINESTRING")==0)
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{
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boost::geometry::read_wkt(line, gc);
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break;
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}
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}
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BOOST_FOREACH(LineString& ls, gc)
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{
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mls.push_back(*ls.range);
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}
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return in;
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}
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template<typename Polygon>
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std::istream&
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read_polygon_WKT( std::istream& in,
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Polygon& polygon
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)
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{
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if(!in)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return in;
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}
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std::string line;
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while(std::getline(in, line))
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{
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std::istringstream iss(line);
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std::string type;
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iss >> type;
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if(type.substr(0, 7).compare("POLYGON")==0)
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{
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boost::geometry::read_wkt(line, polygon);
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break;
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}
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}
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return in;
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}
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template<typename MultiPolygon>
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std::istream&
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read_multi_polygon_WKT( std::istream& in,
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MultiPolygon& polygons
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)
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{
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if(!in)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return in;
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}
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internal::Geometry_container<MultiPolygon, boost::geometry::multi_polygon_tag> gc(polygons);
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std::string line;
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while(std::getline(in, line))
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{
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std::istringstream iss(line);
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std::string type;
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iss >> type;
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if(type.substr(0, 12).compare("MULTIPOLYGON")==0)
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{
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boost::geometry::read_wkt(line, gc);
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break;
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}
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}
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return in;
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}
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template<typename Point>
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std::ostream&
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write_point_WKT( std::ostream& out,
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const Point& point
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)
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{
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if(!out)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return out;
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}
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out<<boost::geometry::wkt(point)<<std::endl;
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return out;
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}
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template<typename Polygon>
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std::ostream&
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write_polygon_WKT( std::ostream& out,
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const Polygon& poly
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)
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{
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if(!out)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return out;
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}
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out<<boost::geometry::wkt(poly)<<std::endl;
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return out;
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}
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template<typename LineString>
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std::ostream&
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write_linestring_WKT( std::ostream& out,
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LineString ls
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)
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{
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if(!out)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return out;
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}
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internal::Geometry_container<LineString, boost::geometry::linestring_tag> gc(ls);
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out<<boost::geometry::wkt(gc)<<std::endl;
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return out;
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}
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template<typename MultiPoint>
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std::ostream&
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write_multi_point_WKT( std::ostream& out,
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MultiPoint& mp
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)
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{
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if(!out)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return out;
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}
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internal::Geometry_container<MultiPoint, boost::geometry::multi_point_tag> gc(mp);
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out<<boost::geometry::wkt(gc)<<std::endl;
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return out;
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}
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template<typename MultiPolygon>
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std::ostream&
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write_multi_polygon_WKT( std::ostream& out,
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MultiPolygon& polygons
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)
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{
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if(!out)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return out;
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}
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internal::Geometry_container<MultiPolygon, boost::geometry::multi_polygon_tag> gc(polygons);
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out<<boost::geometry::wkt(gc)<<std::endl;
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return out;
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}
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template<typename MultiLineString>
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std::ostream&
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write_multi_linestring_WKT( std::ostream& out,
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MultiLineString& mls
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)
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{
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if(!out)
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{
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std::cerr << "Error: cannot open file" << std::endl;
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return out;
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}
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typedef typename MultiLineString::value_type PointRange;
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typedef internal::Geometry_container<PointRange, boost::geometry::linestring_tag> LineString;
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std::vector<LineString> pr_range;
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BOOST_FOREACH(PointRange& pr, mls)
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{
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LineString ls(pr);
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pr_range.push_back(ls);
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}
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internal::Geometry_container<std::vector<LineString>, boost::geometry::multi_linestring_tag> gc(pr_range);
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out<<boost::geometry::wkt(gc)<<std::endl;
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return out;
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}
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template<typename MultiPoint,
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typename MultiLineString,
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typename MultiPolygon>
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std::istream&
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read_WKT( std::istream& input,
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MultiPoint& points,
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MultiLineString& polylines,
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MultiPolygon& polygons)
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{
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do
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{
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typedef typename MultiPoint::value_type Point;
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typedef typename MultiLineString::value_type LineString;
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typedef typename MultiPolygon::value_type Polygon;
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std::string line;
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std::streampos input_pos = input.tellg();
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std::getline(input, line);
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std::istringstream iss(line);
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std::string t;
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std::string type="";
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iss >> t;
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for(std::size_t pos=0; pos < t.length(); ++pos)
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{
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char c=t[pos];
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if(c=='(')
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break;
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type.push_back(c);
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}
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input.seekg(input_pos);
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if(type == "POINT")
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{
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Point p;
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CGAL::read_point_WKT(input, p);
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points.push_back(p);
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}
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else if(type == "LINESTRING")
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{
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LineString l;
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CGAL::read_linestring_WKT(input, l);
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polylines.push_back(l);
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}
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else if(type == "POLYGON")
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{
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Polygon p;
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CGAL::read_polygon_WKT(input, p);
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if(!p.outer_boundary().is_empty())
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polygons.push_back(p);
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}
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else if(type == "MULTIPOINT")
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{
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MultiPoint mp;
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CGAL::read_multi_point_WKT(input, mp);
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BOOST_FOREACH(const Point& point, mp)
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points.push_back(point);
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}
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else if(type == "MULTILINESTRING")
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{
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MultiLineString mls;
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CGAL::read_multi_linestring_WKT(input, mls);
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BOOST_FOREACH(const LineString& ls, mls)
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polylines.push_back(ls);
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}
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else if(type == "MULTIPOLYGON")
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{
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MultiPolygon mp;
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CGAL::read_multi_polygon_WKT(input, mp);
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BOOST_FOREACH(const Polygon& poly, mp)
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polygons.push_back(poly);
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}
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}while(input.good() && !input.eof());
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return input;
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}
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}//end CGAL
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#endif
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#endif
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