f1b8ad4ee7
geometries directly inside a XML file by specifying a WKT text. Useful a lot for building legend images for layers or drawing fixed geometries in the map. An update of the main SConstruct and python bindings for this will follow. Be careful with this, as it's mainly alpha code.
56 lines
1.9 KiB
C++
56 lines
1.9 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) 2007 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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//$Id$
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#ifndef GEOS_DATASOURCE_HPP
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#define GEOS_DATASOURCE_HPP
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// mapnik
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#include <mapnik/datasource.hpp>
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#include <mapnik/feature.hpp>
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#include <mapnik/feature_layer_desc.hpp>
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// boost
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#include <boost/shared_ptr.hpp>
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class geos_datasource : public mapnik::datasource
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{
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public:
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geos_datasource(mapnik::parameters const& params, bool bind=true);
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virtual ~geos_datasource ();
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int type() const;
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static std::string name();
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mapnik::featureset_ptr features(mapnik::query const& q) const;
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mapnik::featureset_ptr features_at_point(mapnik::coord2d const& pt) const;
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mapnik::box2d<double> envelope() const;
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mapnik::layer_descriptor get_descriptor() const;
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void bind() const;
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private:
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mutable mapnik::box2d<double> extent_;
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int type_;
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mutable mapnik::layer_descriptor desc_;
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mutable std::string geometry_;
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bool multiple_geometries_;
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};
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#endif // GEOS_DATASOURCE_HPP
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