The result of applying a RasterOverlayTile to geometry. More...

#include <Cesium3DTilesSelection/RasterMappedTo3DTile.h>

Public Types
enum class	AttachmentState { Unattached = 0 , TemporarilyAttached = 1 , Attached = 2 }
	The states indicating whether the raster tile is attached to the geometry. More...

Public Member Functions
	RasterMappedTo3DTile (const CesiumUtility::IntrusivePointer< CesiumRasterOverlays::RasterOverlayTile > &pRasterTile, int32_t textureCoordinateIndex)
	Creates a new instance. More...

CesiumRasterOverlays::RasterOverlayTile *	getLoadingTile () noexcept
	Returns a RasterOverlayTile that is currently loading. More...

const CesiumRasterOverlays::RasterOverlayTile *	getLoadingTile () const noexcept
	Returns a RasterOverlayTile that is currently loading. More...

CesiumRasterOverlays::RasterOverlayTile *	getReadyTile () noexcept
	Returns the RasterOverlayTile that represents the imagery data that is ready to render. More...

const CesiumRasterOverlays::RasterOverlayTile *	getReadyTile () const noexcept
	Returns the RasterOverlayTile that represents the imagery data that is ready to render. More...

int32_t	getTextureCoordinateID () const noexcept
	Returns an identifier for the texture coordinates of this tile. More...

void	setTextureCoordinateID (int32_t textureCoordinateID) noexcept
	Sets the texture coordinate ID. More...

const glm::dvec2 &	getTranslation () const noexcept
	Returns the translation that converts between the geometry texture coordinates and the texture coordinates that should be used to sample this raster texture. More...

const glm::dvec2 &	getScale () const noexcept
	Returns the scaling that converts between the geometry texture coordinates and the texture coordinates that should be used to sample this raster texture. More...

AttachmentState	getState () const noexcept
	Indicates whether this overlay tile is currently attached to its owning geometry tile. More...

CesiumRasterOverlays::RasterOverlayTile::MoreDetailAvailable	update (IPrepareRendererResources &prepareRendererResources, Tile &tile)
	Update this tile during the update of its owner. More...

bool	isMoreDetailAvailable () const noexcept

void	detachFromTile (IPrepareRendererResources &prepareRendererResources, Tile &tile) noexcept
	Detach the raster from the given tile. More...

bool	loadThrottled () noexcept
	Does a throttled load of the mapped RasterOverlayTile. More...

Static Public Member Functions
static RasterMappedTo3DTile *	mapOverlayToTile (double maximumScreenSpaceError, CesiumRasterOverlays::RasterOverlayTileProvider &tileProvider, CesiumRasterOverlays::RasterOverlayTileProvider &placeholder, Tile &tile, std::vector< CesiumGeospatial::Projection > &missingProjections, const CesiumGeospatial::Ellipsoid &ellipsoid CESIUM_DEFAULT_ELLIPSOID)
	Creates a maping between a RasterOverlay and a Tile. More...

Detailed Description

The result of applying a RasterOverlayTile to geometry.

Instances of this class are used by a Tile in order to map imagery data that is given as RasterOverlayTile instances to the 2D region that is covered by the tile geometry.

Definition at line 23 of file RasterMappedTo3DTile.h.

Member Enumeration Documentation

◆ AttachmentState

enum Cesium3DTilesSelection::RasterMappedTo3DTile::AttachmentState

strong

The states indicating whether the raster tile is attached to the geometry.

Enumerator
Unattached	This raster tile is not yet attached to the geometry at all.
TemporarilyAttached	This raster tile is attached to the geometry, but it is a temporary, low-res version usable while the full-res version is loading.
Attached	This raster tile is attached to the geometry.

Definition at line 29 of file RasterMappedTo3DTile.h.

Constructor & Destructor Documentation

◆ RasterMappedTo3DTile()

Cesium3DTilesSelection::RasterMappedTo3DTile::RasterMappedTo3DTile	(	const CesiumUtility::IntrusivePointer< CesiumRasterOverlays::RasterOverlayTile > &	pRasterTile,
		int32_t	textureCoordinateIndex
	)

Creates a new instance.

Parameters

pRasterTile	The RasterOverlayTile that is mapped to the geometry.
textureCoordinateIndex	The index of the texture coordinates to use with this mapped raster overlay.

Member Function Documentation

◆ detachFromTile()

void Cesium3DTilesSelection::RasterMappedTo3DTile::detachFromTile	(	IPrepareRendererResources &	prepareRendererResources,
		Tile &	tile
	)

noexcept

Detach the raster from the given tile.

Parameters

prepareRendererResources	The IPrepareRendererResources used to detach raster overlay from the tile geometry
tile	The owner tile.

◆ getLoadingTile() [1/2]

const CesiumRasterOverlays::RasterOverlayTile* Cesium3DTilesSelection::RasterMappedTo3DTile::getLoadingTile ( ) const

inlinenoexcept

Returns a RasterOverlayTile that is currently loading.

The caller has to check the exact state of this tile, using Tile::getState.

Returns: The tile that is loading, or nullptr.

Definition at line 74 of file RasterMappedTo3DTile.h.

◆ getLoadingTile() [2/2]

CesiumRasterOverlays::RasterOverlayTile* Cesium3DTilesSelection::RasterMappedTo3DTile::getLoadingTile ( )

inlinenoexcept

Returns a RasterOverlayTile that is currently loading.

The caller has to check the exact state of this tile, using Tile::getState.

Returns: The tile that is loading, or nullptr.

Definition at line 68 of file RasterMappedTo3DTile.h.

◆ getReadyTile() [1/2]

const CesiumRasterOverlays::RasterOverlayTile* Cesium3DTilesSelection::RasterMappedTo3DTile::getReadyTile ( ) const

inlinenoexcept

Returns the RasterOverlayTile that represents the imagery data that is ready to render.

This will be nullptr when the tile data has not yet been loaded.

Returns: The tile, or nullptr.

Definition at line 91 of file RasterMappedTo3DTile.h.

◆ getReadyTile() [2/2]

CesiumRasterOverlays::RasterOverlayTile* Cesium3DTilesSelection::RasterMappedTo3DTile::getReadyTile ( )

inlinenoexcept

Returns the RasterOverlayTile that represents the imagery data that is ready to render.

This will be nullptr when the tile data has not yet been loaded.

Returns: The tile, or nullptr.

Definition at line 86 of file RasterMappedTo3DTile.h.

◆ getScale()

const glm::dvec2& Cesium3DTilesSelection::RasterMappedTo3DTile::getScale ( ) const

inlinenoexcept

Returns the scaling that converts between the geometry texture coordinates and the texture coordinates that should be used to sample this raster texture.

See also: getTranslation

Returns: The scaling.

Definition at line 140 of file RasterMappedTo3DTile.h.

◆ getState()

AttachmentState Cesium3DTilesSelection::RasterMappedTo3DTile::getState ( ) const

inlinenoexcept

Indicates whether this overlay tile is currently attached to its owning geometry tile.

When a raster overlay tile is attached to a geometry tile, IPrepareRendererResources::attachRasterInMainThread is invoked. When it is detached, IPrepareRendererResources::detachRasterInMainThread is invoked.

Definition at line 151 of file RasterMappedTo3DTile.h.

◆ getTextureCoordinateID()

int32_t Cesium3DTilesSelection::RasterMappedTo3DTile::getTextureCoordinateID ( ) const

inlinenoexcept

Returns an identifier for the texture coordinates of this tile.

The texture coordinates for this raster are found in the glTF as an attribute named _CESIUMOVERLAY_n where n is this value.

Returns: The texture coordinate ID.

Definition at line 103 of file RasterMappedTo3DTile.h.

◆ getTranslation()

const glm::dvec2& Cesium3DTilesSelection::RasterMappedTo3DTile::getTranslation ( ) const

inlinenoexcept

Returns the translation that converts between the geometry texture coordinates and the texture coordinates that should be used to sample this raster texture.

rasterCoordinates = geometryCoordinates * scale + translation

Returns: The translation.

Definition at line 127 of file RasterMappedTo3DTile.h.

◆ loadThrottled()

bool Cesium3DTilesSelection::RasterMappedTo3DTile::loadThrottled ( )

noexcept

Does a throttled load of the mapped RasterOverlayTile.

Returns: If the mapped tile is already in the process of loading or it has already finished loading, this method does nothing and returns true. If too many loads are already in progress, this method does nothing and returns false. Otherwise, it begins the asynchronous process to load the tile and returns true.

◆ mapOverlayToTile()

static RasterMappedTo3DTile* Cesium3DTilesSelection::RasterMappedTo3DTile::mapOverlayToTile	(	double	maximumScreenSpaceError,
		CesiumRasterOverlays::RasterOverlayTileProvider &	tileProvider,
		CesiumRasterOverlays::RasterOverlayTileProvider &	placeholder,
		Tile &	tile,
		std::vector< CesiumGeospatial::Projection > &	missingProjections,
		const CesiumGeospatial::Ellipsoid &ellipsoid	CESIUM_DEFAULT_ELLIPSOID
	)

static

Creates a maping between a RasterOverlay and a Tile.

The returned mapping will be to a placeholder RasterOverlayTile if the overlay's tile provider is not yet ready (i.e. it's still a placeholder) or if the overlap between the tile and the raster overlay cannot yet be determined because the projected rectangle of the tile is not yet known.

Returns a pointer to the created RasterMappedTo3DTile in the Tile's Tile::getMappedRasterTiles collection. Note that this pointer may become invalid as soon as another item is added to or removed from this collection.

Parameters

maximumScreenSpaceError	The maximum screen space error that is used for the current tile
tileProvider	The overlay tile provider to map to the tile. This may be a placeholder if the tile provider is not yet ready.
placeholder	The placeholder tile provider for this overlay. This is always a placeholder, even if the tile provider is already ready.
tile	The tile to which to map the overlay.
missingProjections	The list of projections for which there are not yet any texture coordiantes. On return, the given overlay's Projection may be added to this collection if the Tile does not yet have texture coordinates for the Projection and the Projection is not already in the collection.

Returns: A pointer the created mapping, which may be to a placeholder, or nullptr if no mapping was created at all because the Tile does not overlap the raster overlay.

◆ setTextureCoordinateID()

void Cesium3DTilesSelection::RasterMappedTo3DTile::setTextureCoordinateID ( int32_t textureCoordinateID )

inlinenoexcept

Sets the texture coordinate ID.

See also: getTextureCoordinateID

Parameters

textureCoordinateID The ID.

Definition at line 114 of file RasterMappedTo3DTile.h.

◆ update()

CesiumRasterOverlays::RasterOverlayTile::MoreDetailAvailable Cesium3DTilesSelection::RasterMappedTo3DTile::update	(	IPrepareRendererResources &	prepareRendererResources,
		Tile &	tile
	)

Update this tile during the update of its owner.

This is only supposed to be called by Tile::update. It will return whether there is a more detailed version of the raster data available.

Parameters

prepareRendererResources	The IPrepareRendererResources used to create render resources for raster overlay
tile	The owner tile.

Returns: The MoreDetailAvailable state.

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

/home/runner/work/cesium-native/cesium-native/Cesium3DTilesSelection/include/Cesium3DTilesSelection/RasterMappedTo3DTile.h

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ AttachmentState

Constructor & Destructor Documentation

◆ RasterMappedTo3DTile()

Member Function Documentation

◆ detachFromTile()

◆ getLoadingTile() [1/2]

◆ getLoadingTile() [2/2]

◆ getReadyTile() [1/2]

◆ getReadyTile() [2/2]

◆ getScale()

◆ getState()

◆ getTextureCoordinateID()

◆ getTranslation()

◆ loadThrottled()

◆ mapOverlayToTile()

◆ setTextureCoordinateID()

◆ update()