68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
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#pragma once
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#include "ITilesetHeightSampler.h"
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#include <Cesium3DTilesSelection/Tileset.h>
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#include <CesiumGeometry/QuadtreeTilingScheme.h>
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namespace Cesium3DTilesSelection {
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/**
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* @brief A loader that will generate a tileset by tesselating the surface of an
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* ellipsoid, producing a simple globe tileset without any terrain features.
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*/
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class EllipsoidTilesetLoader : public TilesetContentLoader,
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public ITilesetHeightSampler {
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public:
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/**
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* @brief Constructs a new instance.
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*
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* @param ellipsoid The {@link CesiumGeospatial::Ellipsoid}.
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*/
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EllipsoidTilesetLoader(
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const CesiumGeospatial::Ellipsoid& ellipsoid CESIUM_DEFAULT_ELLIPSOID);
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/**
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* @brief Creates a new tileset with this loader.
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*
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* @param externals The external interfaces to use.
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* @param options Additional options for the tileset.
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*/
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static std::unique_ptr<Tileset> createTileset(
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const TilesetExternals& externals,
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const TilesetOptions& options = TilesetOptions{});
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CesiumAsync::Future<TileLoadResult>
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loadTileContent(const TileLoadInput& input) override;
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TileChildrenResult createTileChildren(
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const Tile& tile,
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const CesiumGeospatial::Ellipsoid& ellipsoid
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CESIUM_DEFAULT_ELLIPSOID) override;
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ITilesetHeightSampler* getHeightSampler() override;
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CesiumAsync::Future<SampleHeightResult> sampleHeights(
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const CesiumAsync::AsyncSystem& asyncSystem,
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std::vector<CesiumGeospatial::Cartographic>&& positions) override;
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private:
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struct Geometry {
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std::vector<uint16_t> indices;
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std::vector<glm::vec3> vertices;
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std::vector<glm::vec3> normals;
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};
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void createChildTile(
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const Tile& parent,
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std::vector<Tile>& children,
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const CesiumGeometry::QuadtreeTileID& childID) const;
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CesiumGeospatial::BoundingRegion
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createBoundingRegion(const CesiumGeometry::QuadtreeTileID& quadtreeID) const;
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Geometry createGeometry(const Tile& tile) const;
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CesiumGltf::Model createModel(const Geometry& geometry) const;
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CesiumGeospatial::GeographicProjection _projection;
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CesiumGeometry::QuadtreeTilingScheme _tilingScheme;
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};
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} // namespace Cesium3DTilesSelection
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