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#include <mbgl/tile/geojson_tile.hpp>
#include <mbgl/tile/geometry_tile_data.hpp>
#include <mapbox/geojsonvt.hpp>
#include <supercluster.hpp>
namespace mbgl {
// Implements a simple in-memory Tile type that holds GeoJSON values. A GeoJSON tile can only have
// one layer, and it is always returned regardless of which layer is requested.
class GeoJSONTileFeature : public GeometryTileFeature {
public:
const mapbox::geometry::feature<int16_t>& feature;
GeoJSONTileFeature(const mapbox::geometry::feature<int16_t>& feature_)
: feature(feature_) {
}
FeatureType getType() const override {
return apply_visitor(ToFeatureType(), feature.geometry);
}
PropertyMap getProperties() const override {
return feature.properties;
}
optional<FeatureIdentifier> getID() const override {
return feature.id;
}
GeometryCollection getGeometries() const override {
GeometryCollection geometry = apply_visitor(ToGeometryCollection(), feature.geometry);
// https://github.com/mapbox/geojson-vt-cpp/issues/44
if (getType() == FeatureType::Polygon) {
geometry = fixupPolygons(geometry);
}
return geometry;
}
optional<Value> getValue(const std::string& key) const override {
auto it = feature.properties.find(key);
if (it != feature.properties.end()) {
return optional<Value>(it->second);
}
return optional<Value>();
}
};
class GeoJSONTileData : public GeometryTileData,
public GeometryTileLayer {
public:
mapbox::geometry::feature_collection<int16_t> features;
GeoJSONTileData(mapbox::geometry::feature_collection<int16_t> features_)
: features(std::move(features_)) {
}
std::unique_ptr<GeometryTileData> clone() const override {
return std::make_unique<GeoJSONTileData>(*this);
}
const GeometryTileLayer* getLayer(const std::string&) const override {
return this;
}
std::string getName() const override {
return "";
}
std::size_t featureCount() const override {
return features.size();
}
std::unique_ptr<GeometryTileFeature> getFeature(std::size_t i) const override {
return std::make_unique<GeoJSONTileFeature>(features[i]);
}
};
GeoJSONTile::GeoJSONTile(const OverscaledTileID& overscaledTileID,
std::string sourceID_,
const style::UpdateParameters& parameters)
: GeometryTile(overscaledTileID, sourceID_, parameters) {
}
void GeoJSONTile::updateData(const mapbox::geometry::feature_collection<int16_t>& features) {
setData(std::make_unique<GeoJSONTileData>(features));
}
void GeoJSONTile::setNecessity(Necessity) {}
} // namespace mbgl
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