diff options
Diffstat (limited to 'src/mbgl/util/tile_cover.hpp')
-rw-r--r-- | src/mbgl/util/tile_cover.hpp | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/mbgl/util/tile_cover.hpp b/src/mbgl/util/tile_cover.hpp index b2098b59b8..c953d764d2 100644 --- a/src/mbgl/util/tile_cover.hpp +++ b/src/mbgl/util/tile_cover.hpp @@ -2,9 +2,11 @@ #include <mbgl/tile/tile_id.hpp> #include <mbgl/style/types.hpp> -#include <mbgl/util/tile_coordinate.hpp> +#include <mbgl/util/geometry.hpp> +#include <mbgl/util/optional.hpp> #include <vector> +#include <memory> namespace mbgl { @@ -13,13 +15,31 @@ class LatLngBounds; namespace util { +// Helper class to stream tile-cover results per row +class TileCover { +public: + TileCover(const LatLngBounds&, int32_t z); + // When project == true, projects the geometry points to tile coordinates + TileCover(const Geometry<double>&, int32_t z, bool project = true); + ~TileCover(); + + optional<UnwrappedTileID> next(); + bool hasNext(); + +private: + class Impl; + std::unique_ptr<Impl> impl; +}; + int32_t coveringZoomLevel(double z, style::SourceType type, uint16_t tileSize); std::vector<UnwrappedTileID> tileCover(const TransformState&, int32_t z); std::vector<UnwrappedTileID> tileCover(const LatLngBounds&, int32_t z); +std::vector<UnwrappedTileID> tileCover(const Geometry<double>&, int32_t z); // Compute only the count of tiles needed for tileCover -uint64_t tileCount(const LatLngBounds&, uint8_t z, uint16_t tileSize); +uint64_t tileCount(const LatLngBounds&, uint8_t z); +uint64_t tileCount(const Geometry<double>&, uint8_t z); } // namespace util } // namespace mbgl |