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#pragma once
#include <mapbox/geometry/geometry.hpp>
#include <mapbox/geometry/point_arithmetic.hpp>
#include <mapbox/geometry/for_each_point.hpp>
#include <mbgl/util/feature.hpp>
#include <mbgl/util/optional.hpp>
namespace mbgl {
enum class FeatureType : uint8_t {
Unknown = 0,
Point = 1,
LineString = 2,
Polygon = 3
};
template <class T>
using Point = mapbox::geometry::point<T>;
template <class T>
using LineString = mapbox::geometry::line_string<T>;
template <class T>
using Polygon = mapbox::geometry::polygon<T>;
template <class T>
using MultiPoint = mapbox::geometry::multi_point<T>;
template <class T>
using MultiLineString = mapbox::geometry::multi_line_string<T>;
template <class T>
using MultiPolygon = mapbox::geometry::multi_polygon<T>;
template <class T>
using LinearRing = mapbox::geometry::linear_ring<T>;
template <class T>
using Geometry = mapbox::geometry::geometry<T>;
// Normalized vector tile coordinates.
// Each geometry coordinate represents a point in a bidimensional space,
// varying from -V...0...+V, where V is the maximum extent applicable.
using GeometryCoordinate = Point<int16_t>;
class GeometryCoordinates : public std::vector<GeometryCoordinate> {
public:
using coordinate_type = int16_t;
GeometryCoordinates() = default;
GeometryCoordinates(const std::vector<GeometryCoordinate>& v)
: std::vector<GeometryCoordinate>(v) {}
GeometryCoordinates(std::vector<GeometryCoordinate>&& v)
: std::vector<GeometryCoordinate>(std::move(v)) {}
using std::vector<GeometryCoordinate>::vector;
};
class GeometryCollection : public std::vector<GeometryCoordinates> {
public:
using coordinate_type = int16_t;
using std::vector<GeometryCoordinates>::vector;
};
class GeometryTileFeature {
public:
virtual ~GeometryTileFeature() = default;
virtual FeatureType getType() const = 0;
virtual optional<Value> getValue(const std::string& key) const = 0;
virtual PropertyMap getProperties() const { return PropertyMap(); }
virtual optional<FeatureIdentifier> getID() const { return {}; }
virtual GeometryCollection getGeometries() const = 0;
};
template <class S, class T>
Point<S> convertPoint(const Point<T>& p) {
return Point<S>(p.x, p.y);
}
struct ToFeatureType {
template <class T>
FeatureType operator()(const Point<T> &) const { return FeatureType::Point; }
template <class T>
FeatureType operator()(const MultiPoint<T> &) const { return FeatureType::Point; }
template <class T>
FeatureType operator()(const LineString<T> &) const { return FeatureType::LineString; }
template <class T>
FeatureType operator()(const MultiLineString<T> &) const { return FeatureType::LineString; }
template <class T>
FeatureType operator()(const Polygon<T> &) const { return FeatureType::Polygon; }
template <class T>
FeatureType operator()(const MultiPolygon<T> &) const { return FeatureType::Polygon; }
template <class T>
FeatureType operator()(const mapbox::geometry::geometry_collection<T> &) const { return FeatureType::Unknown; }
};
template <class T, typename F>
auto forEachPoint(const Geometry<T>& g, F f) {
mapbox::geometry::for_each_point(g, f);
}
} // namespace mbgl
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