/***************************************************************************** * * This file is part of Mapnik (c++ mapping toolkit) * * Copyright (C) 2006 Artem Pavlenko * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * *****************************************************************************/ // $Id$ #include #include #include #include #include #include #include #include #include int main ( int argc , char** argv) { if (argc != 2) { std::cout << "usage: ./rundemo \n"; return EXIT_SUCCESS; } using namespace mapnik; try { std::cout << " running demo ... \n"; datasource_cache::instance()->register_datasources(argv[1]); freetype_engine::register_font("/usr/local/lib/mapnik/fonts/DejaVuSans.ttf"); Map m(800,600); m.set_background(color_factory::from_string("white")); // create styles // Provinces (polygon) feature_type_style provpoly_style; rule_type provpoly_rule_on; provpoly_rule_on.set_filter(create_filter("[NAME_EN] = 'Ontario'")); provpoly_rule_on.append(polygon_symbolizer(Color(250, 190, 183))); provpoly_style.add_rule(provpoly_rule_on); rule_type provpoly_rule_qc; provpoly_rule_qc.set_filter(create_filter("[NAME_EN] = 'Quebec'")); provpoly_rule_qc.append(polygon_symbolizer(Color(217, 235, 203))); provpoly_style.add_rule(provpoly_rule_qc); m.insert_style("provinces",provpoly_style); // Provinces (polyline) feature_type_style provlines_style; stroke provlines_stk (Color(0,0,0),1.0); provlines_stk.add_dash(8, 4); provlines_stk.add_dash(2, 2); provlines_stk.add_dash(2, 2); rule_type provlines_rule; provlines_rule.append(line_symbolizer(provlines_stk)); provlines_style.add_rule(provlines_rule); m.insert_style("provlines",provlines_style); // Drainage feature_type_style qcdrain_style; rule_type qcdrain_rule; qcdrain_rule.set_filter(create_filter("[HYC] = 8")); qcdrain_rule.append(polygon_symbolizer(Color(153, 204, 255))); qcdrain_style.add_rule(qcdrain_rule); m.insert_style("drainage",qcdrain_style); // Roads 3 and 4 (The "grey" roads) feature_type_style roads34_style; rule_type roads34_rule; roads34_rule.set_filter(create_filter("[CLASS] = 3 or [CLASS] = 4")); stroke roads34_rule_stk(Color(171,158,137),2.0); roads34_rule_stk.set_line_cap(ROUND_CAP); roads34_rule_stk.set_line_join(ROUND_JOIN); roads34_rule.append(line_symbolizer(roads34_rule_stk)); roads34_style.add_rule(roads34_rule); m.insert_style("smallroads",roads34_style); // Roads 2 (The thin yellow ones) feature_type_style roads2_style_1; rule_type roads2_rule_1; roads2_rule_1.set_filter(create_filter("[CLASS] = 2")); stroke roads2_rule_stk_1(Color(171,158,137),4.0); roads2_rule_stk_1.set_line_cap(ROUND_CAP); roads2_rule_stk_1.set_line_join(ROUND_JOIN); roads2_rule_1.append(line_symbolizer(roads2_rule_stk_1)); roads2_style_1.add_rule(roads2_rule_1); m.insert_style("road-border", roads2_style_1); feature_type_style roads2_style_2; rule_type roads2_rule_2; roads2_rule_2.set_filter(create_filter("[CLASS] = 2")); stroke roads2_rule_stk_2(Color(255,250,115),2.0); roads2_rule_stk_2.set_line_cap(ROUND_CAP); roads2_rule_stk_2.set_line_join(ROUND_JOIN); roads2_rule_2.append(line_symbolizer(roads2_rule_stk_2)); roads2_style_2.add_rule(roads2_rule_2); m.insert_style("road-fill", roads2_style_2); // Roads 1 (The big orange ones, the highways) feature_type_style roads1_style_1; rule_type roads1_rule_1; roads1_rule_1.set_filter(create_filter("[CLASS] = 1")); stroke roads1_rule_stk_1(Color(188,149,28),7.0); roads1_rule_stk_1.set_line_cap(ROUND_CAP); roads1_rule_stk_1.set_line_join(ROUND_JOIN); roads1_rule_1.append(line_symbolizer(roads1_rule_stk_1)); roads1_style_1.add_rule(roads1_rule_1); m.insert_style("highway-border", roads1_style_1); feature_type_style roads1_style_2; rule_type roads1_rule_2; roads1_rule_2.set_filter(create_filter("[CLASS] = 1")); stroke roads1_rule_stk_2(Color(242,191,36),5.0); roads1_rule_stk_2.set_line_cap(ROUND_CAP); roads1_rule_stk_2.set_line_join(ROUND_JOIN); roads1_rule_2.append(line_symbolizer(roads1_rule_stk_2)); roads1_style_2.add_rule(roads1_rule_2); m.insert_style("highway-fill", roads1_style_2); // Populated Places feature_type_style popplaces_style; rule_type popplaces_rule; text_symbolizer popplaces_text_symbolizer("GEONAME","DejaVu Sans Book",10,Color(0,0,0)); popplaces_text_symbolizer.set_halo_fill(Color(255,255,200)); popplaces_text_symbolizer.set_halo_radius(1); popplaces_rule.append(popplaces_text_symbolizer); popplaces_style.add_rule(popplaces_rule); m.insert_style("popplaces",popplaces_style ); // Layers // Provincial polygons { parameters p; p["type"]="shape"; p["file"]="../data/boundaries"; Layer lyr("Provinces"); lyr.set_datasource(datasource_cache::instance()->create(p)); lyr.add_style("provinces"); m.addLayer(lyr); } // Drainage { parameters p; p["type"]="shape"; p["file"]="../data/qcdrainage"; Layer lyr("Quebec Hydrography"); lyr.set_datasource(datasource_cache::instance()->create(p)); lyr.add_style("drainage"); m.addLayer(lyr); } { parameters p; p["type"]="shape"; p["file"]="../data/ontdrainage"; Layer lyr("Ontario Hydrography"); lyr.set_datasource(datasource_cache::instance()->create(p)); lyr.add_style("drainage"); m.addLayer(lyr); } // Provincial boundaries { parameters p; p["type"]="shape"; p["file"]="../data/boundaries_l"; Layer lyr("Provincial borders"); lyr.set_datasource(datasource_cache::instance()->create(p)); lyr.add_style("provlines"); m.addLayer(lyr); } // Roads { parameters p; p["type"]="shape"; p["file"]="../data/roads"; Layer lyr("Roads"); lyr.set_datasource(datasource_cache::instance()->create(p)); lyr.add_style("smallroads"); lyr.add_style("road-border"); lyr.add_style("road-fill"); lyr.add_style("highway-border"); lyr.add_style("highway-fill"); m.addLayer(lyr); } // popplaces { parameters p; p["type"]="shape"; p["file"]="../data/popplaces"; p["encoding"] = "latin1"; Layer lyr("Populated Places"); lyr.set_datasource(datasource_cache::instance()->create(p)); lyr.add_style("popplaces"); m.addLayer(lyr); } m.zoomToBox(Envelope(1405120.04127408,-247003.813399447, 1706357.31328276,-25098.593149577)); Image32 buf(m.getWidth(),m.getHeight()); agg_renderer ren(m,buf); ren.apply(); save_to_file("demo.jpg","jpeg",buf.data()); save_to_file("demo.png","png",buf.data()); std::cout << "Two maps have been rendered in the current directory:\n" "- demo.jpg\n" "- demo.png\n" "Have a look!\n"; } catch ( const mapnik::config_error & ex ) { std::cerr << "### Configuration error: " << ex.what(); return EXIT_FAILURE; } catch ( const std::exception & ex ) { std::cerr << "### std::exception: " << ex.what(); return EXIT_FAILURE; } catch ( ... ) { std::cerr << "### Unknown exception." << std::endl; return EXIT_FAILURE; } return EXIT_SUCCESS; }