59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
#include <mapnik/map.hpp>
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#include <mapnik/layer.hpp>
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#include <mapnik/envelope.hpp>
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/image_util.hpp>
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#include <mapnik/load_map.hpp>
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#include <mapnik/datasource_cache.hpp>
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#include <mapnik/font_engine_freetype.hpp>
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#include <mapnik/projection.hpp>
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using namespace mapnik;
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#include <iostream>
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#include <cmath>
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using namespace std;
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int main(int argc,char *argv[])
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{
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if(argc < 6)
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{
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std::cerr<<"Usage: render XMLfile w s e n [OSMfile]" << std::endl;
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exit(0);
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}
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datasource_cache::instance()->register_datasources
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("/usr/local/lib/mapnik/input");
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freetype_engine::register_font
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("/usr/local/lib/mapnik/fonts/DejaVuSans.ttf");
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Map m (800,800);
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load_map(m,argv[1]);
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if(argc>6)
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{
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parameters p;
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p["type"] = "osm";
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p["file"] = argv[6];
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for(int count=0; count<m.layerCount(); count++)
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{
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parameters q = m.getLayer(count).datasource()->params();
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m.getLayer(count).set_datasource(datasource_cache::instance()->
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create(p));
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}
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}
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Envelope<double> bbox (atof(argv[2]),atof(argv[3]),
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atof(argv[4]),atof(argv[5]));
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m.zoomToBox(bbox);
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Image32 buf (m.getWidth(), m.getHeight());
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agg_renderer<Image32> r(m,buf);
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r.apply();
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save_to_file<ImageData32>(buf.data(),"blah.png","png");
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return 0;
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}
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