312 lines
10 KiB
C++
312 lines
10 KiB
C++
#define BOOST_TEST_MODULE path_element_tests
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// mapnik
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#include <mapnik/map.hpp>
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#include <mapnik/layer.hpp>
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#include <mapnik/rule.hpp>
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#include <mapnik/feature_type_style.hpp>
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#include <mapnik/svg/output/svg_renderer.hpp>
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#include <mapnik/text/placements/dummy.hpp>
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#include <mapnik/datasource_cache.hpp>
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#include <mapnik/expression.hpp>
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#include <mapnik/color_factory.hpp>
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#include <mapnik/image_util.hpp>
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#include <mapnik/graphics.hpp>
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#include <mapnik/agg_renderer.hpp>
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// boost
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#include <boost/test/included/unit_test.hpp>
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#include <boost/filesystem.hpp>
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// stl
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#include <fstream>
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#include <iterator>
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namespace fs = boost::filesystem;
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using namespace mapnik;
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const std::string srs_lcc="+proj=lcc +ellps=GRS80 +lat_0=49 +lon_0=-95 +lat+1=49 +lat_2=77 \
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+datum=NAD83 +units=m +no_defs";
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const std::string srs_merc="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 \
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+y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over";
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void prepare_map(Map & m)
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{
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// Provinces (polygon)
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feature_type_style provpoly_style;
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{
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rule r;
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r.set_filter(parse_expression("[NAME_EN] = 'Ontario'"));
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{
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polygon_symbolizer poly_sym;
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put(poly_sym, keys::fill, color(250, 190, 183));
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r.append(std::move(poly_sym));
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}
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provpoly_style.add_rule(std::move(r));
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}
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{
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rule r;
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r.set_filter(parse_expression("[NOM_FR] = 'Québec'"));
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{
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polygon_symbolizer poly_sym;
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put(poly_sym, keys::fill, color(217, 235, 203));
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r.append(std::move(poly_sym));
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}
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provpoly_style.add_rule(std::move(r));
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}
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m.insert_style("provinces",provpoly_style);
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// Provinces (polyline)
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feature_type_style provlines_style;
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{
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rule r;
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{
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line_symbolizer line_sym;
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put(line_sym,keys::stroke,color(0,0,0));
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put(line_sym,keys::stroke_width,1.0);
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dash_array dash;
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dash.emplace_back(8,4);
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dash.emplace_back(2,2);
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dash.emplace_back(2,2);
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put(line_sym,keys::stroke_dasharray,dash);
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r.append(std::move(line_sym));
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}
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provlines_style.add_rule(std::move(r));
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}
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m.insert_style("provlines",provlines_style);
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// Drainage
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feature_type_style qcdrain_style;
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{
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rule r;
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r.set_filter(parse_expression("[HYC] = 8"));
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{
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polygon_symbolizer poly_sym;
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put(poly_sym, keys::fill, color(153, 204, 255));
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r.append(std::move(poly_sym));
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}
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qcdrain_style.add_rule(std::move(r));
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}
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m.insert_style("drainage",qcdrain_style);
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// Roads 3 and 4 (The "grey" roads)
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feature_type_style roads34_style;
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{
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rule r;
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r.set_filter(parse_expression("[CLASS] = 3 or [CLASS] = 4"));
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{
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line_symbolizer line_sym;
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put(line_sym,keys::stroke,color(171,158,137));
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put(line_sym,keys::stroke_width,2.0);
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put(line_sym,keys::stroke_linecap,ROUND_CAP);
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put(line_sym,keys::stroke_linejoin,ROUND_JOIN);
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r.append(std::move(line_sym));
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}
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roads34_style.add_rule(std::move(r));
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}
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m.insert_style("smallroads",roads34_style);
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// Roads 2 (The thin yellow ones)
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feature_type_style roads2_style_1;
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{
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rule r;
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r.set_filter(parse_expression("[CLASS] = 2"));
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{
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line_symbolizer line_sym;
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put(line_sym,keys::stroke,color(171,158,137));
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put(line_sym,keys::stroke_width,4.0);
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put(line_sym,keys::stroke_linecap,ROUND_CAP);
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put(line_sym,keys::stroke_linejoin,ROUND_JOIN);
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r.append(std::move(line_sym));
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}
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roads2_style_1.add_rule(std::move(r));
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}
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m.insert_style("road-border", roads2_style_1);
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feature_type_style roads2_style_2;
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{
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rule r;
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r.set_filter(parse_expression("[CLASS] = 2"));
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{
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line_symbolizer line_sym;
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put(line_sym,keys::stroke,color(255,250,115));
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put(line_sym,keys::stroke_width,2.0);
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put(line_sym,keys::stroke_linecap,ROUND_CAP);
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put(line_sym,keys::stroke_linejoin,ROUND_JOIN);
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r.append(std::move(line_sym));
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}
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roads2_style_2.add_rule(std::move(r));
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}
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m.insert_style("road-fill", roads2_style_2);
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// Roads 1 (The big orange ones, the highways)
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feature_type_style roads1_style_1;
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{
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rule r;
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r.set_filter(parse_expression("[CLASS] = 1"));
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{
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line_symbolizer line_sym;
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put(line_sym,keys::stroke,color(188,149,28));
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put(line_sym,keys::stroke_width,7.0);
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put(line_sym,keys::stroke_linecap,ROUND_CAP);
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put(line_sym,keys::stroke_linejoin,ROUND_JOIN);
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r.append(std::move(line_sym));
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}
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roads1_style_1.add_rule(std::move(r));
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}
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m.insert_style("highway-border", roads1_style_1);
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feature_type_style roads1_style_2;
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{
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rule r;
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r.set_filter(parse_expression("[CLASS] = 1"));
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{
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line_symbolizer line_sym;
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put(line_sym,keys::stroke,color(242,191,36));
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put(line_sym,keys::stroke_width,5.0);
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put(line_sym,keys::stroke_linecap,ROUND_CAP);
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put(line_sym,keys::stroke_linejoin,ROUND_JOIN);
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r.append(std::move(line_sym));
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}
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roads1_style_2.add_rule(std::move(r));
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}
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m.insert_style("highway-fill", roads1_style_2);
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// Populated Places
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feature_type_style popplaces_style;
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{
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rule r;
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{
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text_symbolizer text_sym;
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text_placements_ptr placement_finder = std::make_shared<text_placements_dummy>();
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placement_finder->defaults.format_defaults.face_name = "DejaVu Sans Book";
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placement_finder->defaults.format_defaults.text_size = mapnik::value_integer(10);
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placement_finder->defaults.format_defaults.fill = color(0,0,0);
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placement_finder->defaults.format_defaults.halo_fill = color(255,255,200);
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placement_finder->defaults.format_defaults.halo_radius = mapnik::value_integer(1);
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placement_finder->defaults.set_old_style_expression(parse_expression("[GEONAME]"));
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put<text_placements_ptr>(text_sym, keys::text_placements_, placement_finder);
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r.append(std::move(text_sym));
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}
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popplaces_style.add_rule(std::move(r));
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}
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m.insert_style("popplaces",popplaces_style );
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// layers
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// Provincial polygons
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{
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parameters p;
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p["type"]="shape";
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p["file"]="demo/data/boundaries";
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p["encoding"]="latin1";
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layer lyr("Provinces");
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lyr.set_datasource(datasource_cache::instance().create(p));
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lyr.set_srs(srs_lcc);
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lyr.add_style("provinces");
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m.add_layer(lyr);
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}
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// Drainage
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{
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parameters p;
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p["type"]="shape";
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p["file"]="demo/data/qcdrainage";
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layer lyr("Quebec Hydrography");
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lyr.set_datasource(datasource_cache::instance().create(p));
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lyr.set_srs(srs_lcc);
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lyr.add_style("drainage");
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m.add_layer(lyr);
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}
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{
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parameters p;
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p["type"]="shape";
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p["file"]="demo/data/ontdrainage";
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layer lyr("Ontario Hydrography");
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lyr.set_datasource(datasource_cache::instance().create(p));
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lyr.set_srs(srs_lcc);
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lyr.add_style("drainage");
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m.add_layer(lyr);
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}
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// Provincial boundaries
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{
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parameters p;
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p["type"]="shape";
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p["file"]="demo/data/boundaries_l";
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layer lyr("Provincial borders");
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lyr.set_srs(srs_lcc);
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lyr.set_datasource(datasource_cache::instance().create(p));
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lyr.add_style("provlines");
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m.add_layer(lyr);
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}
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// Roads
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{
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parameters p;
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p["type"]="shape";
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p["file"]="demo/data/roads";
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layer lyr("Roads");
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lyr.set_srs(srs_lcc);
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lyr.set_datasource(datasource_cache::instance().create(p));
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lyr.add_style("smallroads");
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lyr.add_style("road-border");
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lyr.add_style("road-fill");
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lyr.add_style("highway-border");
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lyr.add_style("highway-fill");
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m.add_layer(lyr);
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}
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// popplaces
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{
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parameters p;
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p["type"]="shape";
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p["file"]="demo/data/popplaces";
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p["encoding"] = "latin1";
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layer lyr("Populated Places");
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lyr.set_srs(srs_lcc);
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lyr.set_datasource(datasource_cache::instance().create(p));
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lyr.add_style("popplaces");
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m.add_layer(lyr);
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}
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}
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void render_to_file(Map const& m, const std::string output_filename)
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{
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std::ofstream output_stream(output_filename.c_str());
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if(output_stream)
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{
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using svg_ren = svg_renderer<std::ostream_iterator<char> >;
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std::ostream_iterator<char> output_stream_iterator(output_stream);
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svg_ren renderer(m, output_stream_iterator);
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renderer.apply();
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output_stream.close();
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fs::path output_filename_path =
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fs::system_complete(fs::path(".")) / fs::path(output_filename);
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BOOST_CHECK_MESSAGE(fs::exists(output_filename_path),
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"File '"+output_filename_path.string()+"' was created.");
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}
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else
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{
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BOOST_FAIL("Could not create create/open file '"+output_filename+"'.");
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}
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}
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BOOST_AUTO_TEST_CASE(path_element_test_case_1)
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{
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std::cout << " looking for 'shape.input' plugin in ./plugins/input/" << "\n";
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datasource_cache::instance().register_datasources("plugins/input/");
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Map m(800,600);
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m.set_background(parse_color("white"));
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m.set_srs(srs_merc);
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prepare_map(m);
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m.zoom_to_box(box2d<double>(-8024477.28459,5445190.38849,-7381388.20071,5662941.44855));
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render_to_file(m, "path_element_test_case_1.svg");
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mapnik::image_32 buf(m.width(),m.height());
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mapnik::agg_renderer<mapnik::image_32> ren(m,buf);
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ren.apply();
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mapnik::save_to_file(buf,"path_element_test_case_1.png");
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}
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