CesiumGeometry::OctreeTilingScheme Class Reference

Defines how an AxisAlignedBox is divided into octree tiles. More...

#include <CesiumGeometry/OctreeTilingScheme.h>

Public Member Functions
	OctreeTilingScheme (const AxisAlignedBox &box, uint32_t rootTilesX, uint32_t rootTilesY, uint32_t rootTilesZ) noexcept
	Constructs a new instance. More...
const AxisAlignedBox &	getBox () const noexcept
	Return the overall box that is tiled.
uint32_t	getRootTilesX () const noexcept
	Returns the number of root tiles, in x-direction.
uint32_t	getRootTilesY () const noexcept
	Returns the number of root tiles, in y-direction.
uint32_t	getRootTilesZ () const noexcept
	Returns the number of root tiles, in z-direction.
uint32_t	getNumberOfXTilesAtLevel (uint32_t level) const noexcept
	Returns the number of tiles, in x-direction, at the given level.
uint32_t	getNumberOfYTilesAtLevel (uint32_t level) const noexcept
	Returns the number of tiles, in y-direction, at the given level.
uint32_t	getNumberOfZTilesAtLevel (uint32_t level) const noexcept
	Returns the number of tiles, in z-direction, at the given level.
std::optional< CesiumGeometry::OctreeTileID >	positionToTile (const glm::dvec3 &position, uint32_t level) const noexcept
	Computes the CesiumGeometry::OctreeTileID for a given position and level. More...
AxisAlignedBox	tileToBox (const CesiumGeometry::OctreeTileID &tileID) const noexcept
	Returns the AxisAlignedBox that is covered by the specified tile. More...

Detailed Description

Defines how an AxisAlignedBox is divided into octree tiles.

Definition at line 17 of file OctreeTilingScheme.h.

Constructor & Destructor Documentation

OctreeTilingScheme()

CesiumGeometry::OctreeTilingScheme::OctreeTilingScheme ( const AxisAlignedBox &  box, uint32_t  rootTilesX, uint32_t  rootTilesY, uint32_t  rootTilesZ  )

noexcept

Constructs a new instance.

Parameters

box	The overall box that is tiled, expressed in projected coordinates.
rootTilesX	The number of tiles at the root of the quadtree in the X direction.
rootTilesY	The nubmer of tiles at the root of the quadtree in the Y direction.
rootTilesZ	The number of tiles at the root of the quadtree in the Z direction.

Member Function Documentation

positionToTile()

std::optional<CesiumGeometry::OctreeTileID> CesiumGeometry::OctreeTilingScheme::positionToTile ( const glm::dvec3 &  position, uint32_t  level  ) const

noexcept

Computes the CesiumGeometry::OctreeTileID for a given position and level.

If the projected position is within the getBox of this tiling scheme, then this will compute the octree tile ID for the tile that contains the given position at the given level. Otherwise, nullopt is returned.

Parameters

position	The position in projected coordinates.
level	The level

Returns

The tile ID, or nullopt.

tileToBox()

AxisAlignedBox CesiumGeometry::OctreeTilingScheme::tileToBox ( const CesiumGeometry::OctreeTileID &  tileID ) const

noexcept

Returns the AxisAlignedBox that is covered by the specified tile.

The volume that is covered by the tile that is identified with the given CesiumGeometry::OctreeTileID will be computed, based on the getBox of this tiling scheme.

Parameters

tileID

The tile ID

Returns

The box

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The documentation for this class was generated from the following file:

• /home/runner/work/cesium-native/cesium-native/CesiumGeometry/include/CesiumGeometry/OctreeTilingScheme.h