Package com.massifmaps.layers

Class RasterTileLayer

java.lang.Object

com.massifmaps.layers.Layer

com.massifmaps.layers.TileLayer

com.massifmaps.layers.RasterTileLayer

Direct Known Subclasses:

CustomRasterTileLayer

public class RasterTileLayer
extends TileLayer

A tile layer where each tile is a bitmap. Should be used together with corresponding data source.

Constructor Summary

Constructors

Constructor	Description
RasterTileLayer(TileDataSource dataSource)	Constructs a RasterTileLayer object from a data source.

Method Summary

Modifier and Type	Method	Description
RasterTileEventListener	getRasterTileEventListener()	Returns the raster tile event listener.
long	getTextureCacheCapacity()	Returns the tile texture cache capacity.
float	getTileBlendingSpeed()	Returns the current relative tile blending speed.
int	getTileFilterMode()	Returns the current tile filter mode.
void	setRasterTileEventListener(RasterTileEventListener eventListener)	Sets the raster tile event listener.
void	setTextureCacheCapacity(long capacityInBytes)	Sets the tile texture cache capacity.
void	setTileBlendingSpeed(float speed)	Sets the relative tile blending speed.
void	setTileFilterMode(int filterMode)	Sets the current tile filter mode.

Methods inherited from class com.massifmaps.layers.TileLayer

bakeDrapeCoverage, bakeGroundAOMask, bakeSpanDrapeTile, calculateMapTile, calculateMapTileBounds, calculateMapTileOrigin, clearTileCaches, collectDrapeStackOrder, collectSpanDrapeTiles, consumeShadowCastersMissingElevation, getDataSource, getFrameNr, getMaxOverzoomLevel, getMaxStandInLevel, getMaxUnderzoomLevel, getPreloadingTileCount, getProjection, getTileLoadListener, getTileSubstitutionPolicy, getUTFGridDataSource, getUTFGridEventListener, getVisibleTileCount, getZoomLevelBias, isGroundAOActive, isGroundAOBakeable, isLabelOcclusionWanted, isPreloading, isSynchronizedRefresh, isTerrainDecodeSettled, isUpdateInProgress, renderGroundAOMask, renderLabelOcclusionDepth, renderTerrainShadowMask, setDrapeCoverageMasks, setFrameNr, setGroundDrapeTextures, setLabelOcclusionDepth, setMaxOverzoomLevel, setMaxStandInLevel, setMaxUnderzoomLevel, setPreloading, setSpanDrapeTextures, setSynchronizedRefresh, setTerrainShadowMask, setTileLoadListener, setTileSubstitutionPolicy, setUTFGridDataSource, setUTFGridEventListener, setZoomLevelBias

Methods inherited from class com.massifmaps.layers.Layer

containsMetaDataKey, equals, getMetaData, getMetaDataElement, getOpacity, getUpdatePriority, getVisibleZoomRange, hashCode, isPostProcessed, isVisible, refresh, setCullDelay, setMetaData, setMetaDataElement, setOpacity, setPostProcessed, setUpdatePriority, setVisible, setVisibleZoomRange, simulateClick, update

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RasterTileLayer

public RasterTileLayer(TileDataSource dataSource)

Constructs a RasterTileLayer object from a data source.

Parameters:

dataSource - The data source from which this layer loads data.

Method Details

getTextureCacheCapacity

public long getTextureCacheCapacity()

Returns the tile texture cache capacity.

Returns:

The tile texture cache capacity in bytes.

setTextureCacheCapacity

public void setTextureCacheCapacity(long capacityInBytes)

Sets the tile texture cache capacity. Texture cache is the primary storage for raster data,
all tiles contained within the texture cache are stored as uncompressed openGL textures and can immediately be
drawn to the screen. Setting the cache size too small may cause artifacts, such as disappearing tiles.
The more tiles are visible on the screen, the larger this cache should be. A single opaque 256x256 tile takes
up 192KB of memory, a transparent tile of the same size takes 256KB. The number of tiles on the screen depends
on the screen size and density, current rotation and tilt angle, tile draw size parameter and
whether or not preloading is enabled.
The default is 10MB, which should be enough for most use cases with preloading enabled. If preloading is
disabled, the cache size should be reduced by the user to conserve memory.

Parameters:

capacityInBytes - The new tile bitmap cache capacity in bytes.

getTileFilterMode

public int getTileFilterMode()

Returns the current tile filter mode.

Returns:

The current tile filter mode. The default is bilinear.

setTileFilterMode

public void setTileFilterMode(int filterMode)

Sets the current tile filter mode.

Parameters:

filterMode - The new tile filter mode.

getTileBlendingSpeed

public float getTileBlendingSpeed()

Returns the current relative tile blending speed.

Returns:

The current relative tile blending speed. Default is 1.0.

setTileBlendingSpeed

public void setTileBlendingSpeed(float speed)

Sets the relative tile blending speed.

Parameters:

speed - The new relative speed value. Default is 1.0. Use zero or negative values to disable blending.

getRasterTileEventListener

public RasterTileEventListener getRasterTileEventListener()

Returns the raster tile event listener.

Returns:

The raster tile event listener.

setRasterTileEventListener

public void setRasterTileEventListener(RasterTileEventListener eventListener)

Sets the raster tile event listener.

Parameters:

eventListener - The raster tile event listener.