CesiumGeometry::QuadtreeTilingScheme Class Reference

Defines how a rectangular region is divided into quadtree tiles. More...

#include <CesiumGeometry/QuadtreeTilingScheme.h>

Public Member Functions
	QuadtreeTilingScheme (const CesiumGeometry::Rectangle &rectangle, uint32_t rootTilesX, uint32_t rootTilesY) noexcept
	Constructs a new instance. More...
const CesiumGeometry::Rectangle &	getRectangle () const noexcept
	Return the overall rectangle that is tiled. More...
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	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.
std::optional< CesiumGeometry::QuadtreeTileID >	positionToTile (const glm::dvec2 &position, uint32_t level) const noexcept
	Computes the CesiumGeometry::QuadtreeTileID for a given position and level. More...
CesiumGeometry::Rectangle	tileToRectangle (const CesiumGeometry::QuadtreeTileID &tileID) const noexcept
	Returns the CesiumGeometry::Rectangle that is covered by the specified tile. More...

Detailed Description

Defines how a rectangular region is divided into quadtree tiles.

Definition at line 16 of file QuadtreeTilingScheme.h.

Constructor & Destructor Documentation

QuadtreeTilingScheme()

CesiumGeometry::QuadtreeTilingScheme::QuadtreeTilingScheme ( const CesiumGeometry::Rectangle &  rectangle, uint32_t  rootTilesX, uint32_t  rootTilesY  )

noexcept

Constructs a new instance.

Parameters

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

Member Function Documentation

getRectangle()

const CesiumGeometry::Rectangle& CesiumGeometry::QuadtreeTilingScheme::getRectangle ( ) const

inlinenoexcept

Return the overall rectangle that is tiled.

The rectangle is expressed in projected coordinates.

Definition at line 38 of file QuadtreeTilingScheme.h.

positionToTile()

std::optional<CesiumGeometry::QuadtreeTileID> CesiumGeometry::QuadtreeTilingScheme::positionToTile ( const glm::dvec2 &  position, uint32_t  level  ) const

noexcept

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

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

Parameters

position	The 2D position
level	The level

Returns

The tile ID, or nullopt.

tileToRectangle()

CesiumGeometry::Rectangle CesiumGeometry::QuadtreeTilingScheme::tileToRectangle ( const CesiumGeometry::QuadtreeTileID &  tileID ) const

noexcept

Returns the CesiumGeometry::Rectangle that is covered by the specified tile.

The rectangle that is covered by the tile that is identified with the given CesiumGeometry::QuadtreeTileID will be computed, based on the getRectangle of this tiling scheme.

Parameters

tileID

The tile ID

Returns

The rectangle

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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/QuadtreeTilingScheme.h