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#include <mbgl/test/util.hpp>
#include <mbgl/gl/gl.hpp>
#include <mbgl/map/map.hpp>
#include <mbgl/util/shared_thread_pool.hpp>
#include <mbgl/storage/default_file_source.hpp>
#include <mbgl/gl/headless_frontend.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/style/sources/custom_geometry_source.hpp>
#include <mbgl/style/layers/fill_layer.hpp>
#include <mbgl/style/layers/line_layer.hpp>
#include <mbgl/util/geojson.hpp>
#include <mbgl/util/io.hpp>
#include <mbgl/util/mat4.hpp>
#include <mbgl/util/run_loop.hpp>
using namespace mbgl;
using namespace mbgl::style;
TEST(CustomGeometrySource, Grid) {
util::RunLoop loop;
DefaultFileSource fileSource(":memory:", "test/fixtures/api/assets");
auto threadPool = sharedThreadPool();
float pixelRatio { 1 };
HeadlessFrontend frontend { pixelRatio, fileSource, *threadPool };
Map map(frontend, MapObserver::nullObserver(), frontend.getSize(), pixelRatio, fileSource,
*threadPool, MapMode::Static);
map.getStyle().loadJSON(util::readFile("test/fixtures/api/water.json"));
map.setLatLngZoom({ 37.8, -122.5 }, 10);
CustomGeometrySource::Options options;
options.fetchTileFunction = [&map](const mbgl::CanonicalTileID& tileID) {
double gridSpacing = 0.1;
FeatureCollection features;
const LatLngBounds bounds(tileID);
for (double y = ceil(bounds.north() / gridSpacing) * gridSpacing; y >= floor(bounds.south() / gridSpacing) * gridSpacing; y -= gridSpacing) {
mapbox::geojson::line_string gridLine;
gridLine.emplace_back(bounds.west(), y);
gridLine.emplace_back(bounds.east(), y);
features.emplace_back(gridLine);
}
for (double x = floor(bounds.west() / gridSpacing) * gridSpacing; x <= ceil(bounds.east() / gridSpacing) * gridSpacing; x += gridSpacing) {
mapbox::geojson::line_string gridLine;
gridLine.emplace_back(x, bounds.south());
gridLine.emplace_back(x, bounds.north());
features.emplace_back(gridLine);
}
auto source = static_cast<CustomGeometrySource *>(map.getStyle().getSource("custom"));
if (source) {
source->setTileData(tileID, features);
}
};
map.getStyle().addSource(std::make_unique<CustomGeometrySource>("custom", options));
auto fillLayer = std::make_unique<FillLayer>("landcover", "mapbox");
fillLayer->setSourceLayer("landcover");
fillLayer->setFillColor(Color{ 1.0, 1.0, 0.0, 1.0 });
map.getStyle().addLayer(std::move(fillLayer));
auto layer = std::make_unique<LineLayer>("grid", "custom");
layer->setLineColor(Color{ 1.0, 1.0, 1.0, 1.0 });
map.getStyle().addLayer(std::move(layer));
test::checkImage("test/fixtures/custom_geometry_source/grid", frontend.render(map), 0.0006, 0.1);
}
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