70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
#define CATCH_CONFIG_MAIN
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#include "catch.hpp"
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#include <mapnik/map.hpp>
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#include <mapnik/memory_datasource.hpp>
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#include <mapnik/json/feature_parser.hpp>
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#include <mapnik/feature_type_style.hpp>
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#include <mapnik/rule.hpp>
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#include <mapnik/symbolizer.hpp>
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#include <mapnik/layer.hpp>
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/debug.hpp>
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#include <iostream>
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// geojson box of the world
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const std::string geojson("{ \"type\": \"Feature\", \"properties\": { }, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -17963313.143242701888084, -6300857.11560364998877 ], [ -17963313.143242701888084, 13071343.332991421222687 ], [ 7396658.353099936619401, 13071343.332991421222687 ], [ 7396658.353099936619401, -6300857.11560364998877 ], [ -17963313.143242701888084, -6300857.11560364998877 ] ] ] } }");
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TEST_CASE("agg_rasterizer_integer_overflow") {
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SECTION("coordinates_do_not_overflow_and_polygon_is_rendered") {
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try {
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auto expected_color = mapnik::color("white");
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mapnik::Map m(256,256);
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m.set_background(mapnik::color("black"));
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mapnik::feature_type_style s;
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{
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mapnik::rule r;
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mapnik::polygon_symbolizer sym;
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mapnik::put(sym, mapnik::keys::fill, expected_color);
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mapnik::put(sym, mapnik::keys::clip, false);
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r.append(std::move(sym));
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s.add_rule(std::move(r));
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}
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m.insert_style("style",std::move(s));
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mapnik::layer lyr("Layer");
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lyr.styles().emplace_back("style");
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{
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auto ds = std::make_shared<mapnik::memory_datasource>(mapnik::parameters());
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auto context = std::make_shared<mapnik::context_type>();
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auto f = std::make_shared<mapnik::feature_impl>(context, 0);
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REQUIRE(mapnik::json::from_geojson(geojson, *f));
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ds->push(f);
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lyr.set_datasource(ds);
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}
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m.add_layer(std::move(lyr));
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// 17/20864/45265.png
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m.zoom_to_box(mapnik::box2d<double>(-13658379.710221574,6197514.253362091,-13657768.213995293,6198125.749588372));
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// works 15/5216/11316.png
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//m.zoom_to_box(mapnik::box2d<double>(-13658379.710221574,6195679.764683247,-13655933.72531645,6198125.749588372));
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mapnik::image_rgba8 im(256, 256);
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{
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mapnik::agg_renderer<mapnik::image_rgba8> ren(m, im);
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ren.apply();
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}
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REQUIRE(im(128,128) == expected_color.rgba());
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} catch (std::exception const &e) {
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std::clog << e.what() << std::endl;
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REQUIRE(false);
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}
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} // SECTION
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} // TEST_CASE
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