249 lines
8.3 KiB
C++
249 lines
8.3 KiB
C++
/*****************************************************************************
|
|
*
|
|
* 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 <mapnik/map.hpp>
|
|
#include <mapnik/datasource_cache.hpp>
|
|
#include <mapnik/font_engine_freetype.hpp>
|
|
#include <mapnik/agg_renderer.hpp>
|
|
#include <mapnik/filter_factory.hpp>
|
|
#include <mapnik/color_factory.hpp>
|
|
#include <mapnik/image_util.hpp>
|
|
|
|
#include <iostream>
|
|
|
|
int main ( int argc , char** argv)
|
|
{
|
|
if (argc != 2)
|
|
{
|
|
std::cout << "usage: ./rundemo <plugins_dir>\n";
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
std::cout << " running demo ... \n";
|
|
using namespace mapnik;
|
|
datasource_cache::instance()->register_datasources(argv[1]);
|
|
freetype_engine::register_font("/usr/share/fonts/truetype/ttf-dejavu/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<double>(1405120.04127408,-247003.813399447,
|
|
1706357.31328276,-25098.593149577));
|
|
|
|
Image32 buf(m.getWidth(),m.getHeight());
|
|
agg_renderer<Image32> ren(m,buf);
|
|
ren.apply();
|
|
|
|
save_to_file<ImageData32>("demo.jpg","jpeg",buf.data());
|
|
save_to_file<ImageData32>("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";
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|