bb235fa316
Map and Layer objects both have a new parameter 'srs', initialized to "+proj=latlong +datum=WGS84" by default.
Basic usage (Python):
p = Projection("+proj=merc +datum=WGS84")
point = p.forward(Coord(-2,51))
...
2.reflected arithmetic operators for Envelope/Coord into Python
3.altered return policies for python objects
4.modified build system to require proj4 lib and headers
86 lines
3.1 KiB
C++
86 lines
3.1 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: map.hpp 39 2005-04-10 20:39:53Z pavlenko $
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#ifndef MAP_HPP
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#define MAP_HPP
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#include <mapnik/feature_type_style.hpp>
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namespace mapnik
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{
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class Layer;
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class MAPNIK_DECL Map
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{
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static const unsigned MIN_MAPSIZE=16;
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static const unsigned MAX_MAPSIZE=2048;
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unsigned width_;
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unsigned height_;
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std::string srs_;
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Color background_;
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std::map<std::string,feature_type_style> styles_;
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std::vector<Layer> layers_;
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Envelope<double> currentExtent_;
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public:
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typedef std::map<std::string,feature_type_style>::const_iterator style_iterator;
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Map();
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Map(int width, int height, std::string const& srs="+proj=latlong +datum=WGS84");
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Map(const Map& rhs);
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Map& operator=(const Map& rhs);
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style_iterator begin_styles() const;
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style_iterator end_styles() const;
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bool insert_style(std::string const& name,feature_type_style const& style);
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void remove_style(const std::string& name);
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feature_type_style const& find_style(std::string const& name) const;
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size_t layerCount() const;
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void addLayer(const Layer& l);
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const Layer& getLayer(size_t index) const;
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Layer& getLayer(size_t index);
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void removeLayer(size_t index);
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std::vector<Layer> const& layers() const;
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void remove_all();
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unsigned getWidth() const;
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unsigned getHeight() const;
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void setWidth(unsigned width);
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void setHeight(unsigned height);
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void resize(unsigned width,unsigned height);
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std::string const& srs() const;
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void set_srs(std::string const& srs);
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void setBackground(const Color& c);
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const Color& getBackground() const;
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void zoom(double zoom);
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void zoomToBox(const Envelope<double>& box);
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void zoom_all();
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void pan(int x,int y);
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void pan_and_zoom(int x,int y,double zoom);
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const Envelope<double>& getCurrentExtent() const;
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double scale() const;
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~Map();
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private:
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void fixAspectRatio();
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};
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}
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#endif //MAP_HPP
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