184 lines
4.5 KiB
C++
184 lines
4.5 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2006 Artem Pavlenko
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id: feature.hpp 40 2005-04-13 20:20:46Z pavlenko $
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#ifndef FEATURE_HPP
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#define FEATURE_HPP
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// mapnik
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#include <mapnik/value.hpp>
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#include <mapnik/geometry.hpp>
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#include <mapnik/raster.hpp>
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// boost
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#include <boost/version.hpp>
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#if BOOST_VERSION >= 104000
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#include <boost/property_map/property_map.hpp>
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#else
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#include <boost/property_map.hpp>
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#endif
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#include <boost/utility.hpp>
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#include <boost/shared_ptr.hpp>
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// stl
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#include <map>
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namespace mapnik {
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typedef boost::shared_ptr<raster> raster_ptr;
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typedef boost::associative_property_map<
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std::map<std::string,value
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> > properties;
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template <typename T1,typename T2>
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struct feature : public properties,
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private boost::noncopyable
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{
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public:
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typedef T1 geometry_type;
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typedef T2 raster_type;
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typedef std::map<std::string,value>::value_type value_type;
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typedef std::map<std::string,value>::size_type size_type;
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typedef std::map<std::string,value>::difference_type difference_type;
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private:
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int id_;
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boost::ptr_vector<geometry_type> geom_cont_;
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raster_type raster_;
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std::map<std::string,value> props_;
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public:
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typedef std::map<std::string,value>::iterator iterator;
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explicit feature(int id)
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: properties(props_),
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id_(id),
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geom_cont_(),
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raster_() {}
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int id() const
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{
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return id_;
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}
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void set_id(int id)
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{
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id_ = id;
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}
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boost::ptr_vector<geometry_type> & paths()
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{
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return geom_cont_;
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}
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void add_geometry(geometry_type * geom)
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{
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geom_cont_.push_back(geom);
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}
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unsigned num_geometries() const
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{
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return geom_cont_.size();
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}
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geometry_type const& get_geometry(unsigned index) const
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{
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return geom_cont_[index];
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}
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geometry_type& get_geometry(unsigned index)
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{
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return geom_cont_[index];
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}
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box2d<double> envelope() const
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{
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box2d<double> result;
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for (unsigned i=0;i<num_geometries();++i)
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{
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geometry_type const& geom = get_geometry(i);
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if (i==0)
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{
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box2d<double> box = geom.envelope();
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result.init(box.minx(),box.miny(),box.maxx(),box.maxy());
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}
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else
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{
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result.expand_to_include(geom.envelope());
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}
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}
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return result;
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}
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const raster_type& get_raster() const
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{
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return raster_;
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}
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void set_raster(raster_type const& raster)
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{
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raster_=raster;
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}
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std::map<std::string,value> const& props() const
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{
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return props_;
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}
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std::map<std::string,value>& props()
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{
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return props_;
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}
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iterator begin()
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{
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return props_.begin();
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}
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iterator end()
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{
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return props_.end();
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}
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std::string to_string() const
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{
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std::stringstream ss;
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ss << "feature (" << std::endl;
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ss << " id:" << id_ << std::endl;
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for (std::map<std::string,value>::const_iterator itr=props_.begin();
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itr != props_.end();++itr)
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{
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ss << " " << itr->first << ":" << itr->second << std::endl;
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}
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ss << ")" << std::endl;
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return ss.str();
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}
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};
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typedef feature<geometry_type,raster_ptr> Feature;
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inline std::ostream& operator<< (std::ostream & out,Feature const& f)
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{
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out << f.to_string();
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return out;
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}
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}
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#endif //FEATURE_HPP
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