89 lines
3.3 KiB
C++
89 lines
3.3 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) 2011 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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#ifndef MAPNIK_PYTHON_BINDING_GRID_UTILS_INCLUDED
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#define MAPNIK_PYTHON_BINDING_GRID_UTILS_INCLUDED
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// boost
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#include <boost/python.hpp>
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// mapnik
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#include <mapnik/map.hpp>
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#include <mapnik/grid/grid.hpp>
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namespace mapnik {
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template <typename T>
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void grid2utf(T const& grid_type,
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boost::python::list& l,
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std::vector<typename T::lookup_type>& key_order);
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template <typename T>
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void grid2utf(T const& grid_type,
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boost::python::list& l,
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std::vector<typename T::lookup_type>& key_order,
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unsigned int resolution);
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template <typename T>
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void grid2utf2(T const& grid_type,
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boost::python::list& l,
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std::vector<typename T::lookup_type>& key_order,
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unsigned int resolution);
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template <typename T>
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void write_features(T const& grid_type,
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boost::python::dict& feature_data,
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std::vector<typename T::lookup_type> const& key_order);
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template <typename T>
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void grid_encode_utf(T const& grid_type,
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boost::python::dict & json,
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bool add_features,
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unsigned int resolution);
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template <typename T>
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boost::python::dict grid_encode( T const& grid, std::string const& format, bool add_features, unsigned int resolution);
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/* new approach: key comes from grid object
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* grid size should be same as the map
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* encoding, resizing handled as method on grid object
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* whether features are dumped is determined by argument not 'fields'
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*/
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void render_layer_for_grid(const mapnik::Map& map,
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mapnik::grid& grid,
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unsigned layer_idx, // TODO - layer by name or index
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boost::python::list const& fields);
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/* old, original impl - to be removed after further testing
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* grid object is created on the fly at potentially reduced size
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*/
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boost::python::dict render_grid(const mapnik::Map& map,
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unsigned layer_idx, // layer
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std::string const& key, // key_name
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unsigned int step, // resolution
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boost::python::list const& fields);
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}
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#endif // MAPNIK_PYTHON_BINDING_GRID_UTILS_INCLUDED
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