mil.nga.geopackage.tiles

Class TileGenerator

java.lang.Object

mil.nga.geopackage.tiles.TileGenerator

Direct Known Subclasses:

FeatureTileGenerator, UrlTileGenerator

public abstract class TileGenerator
extends Object

Creates a set of tiles within a GeoPackage

Field Summary

Fields

Modifier and Type	Field and Description
protected BoundingBox	boundingBox Tile bounding box
protected Context	context Context
protected mil.nga.sf.proj.Projection	projection Tiles projection

Constructor Summary

Constructors

Constructor and Description
TileGenerator(Context context, GeoPackage geoPackage, String tableName, int minZoom, int maxZoom, BoundingBox boundingBox, mil.nga.sf.proj.Projection projection) Constructor

Method Summary

Modifier and Type	Method and Description
void	close() Close the GeoPackage
protected abstract byte[]	createTile(int z, long x, long y) Create the tile
int	generateTiles() Generate the tiles
Bitmap.CompressFormat	getCompressFormat() Get the compress format
Integer	getCompressQuality() Get the compress quality
GeoPackage	getGeoPackage() Get the GeoPackage
int	getMaxZoom() Get the max zoom
int	getMinZoom() Get the min zoom
GeoPackageProgress	getProgress() Get the progress tracker
TileScaling	getScaling() Get the tile scaling settings
String	getTableName() Get the table name
int	getTileCount() Get the tile count of tiles to be generated
boolean	isGoogleTiles() Is the Google Tiles flag set to generate Google tile format tiles.
protected abstract void	preTileGeneration() Called after set up and right before tile generation starts for the first zoom level
void	setBitmapCompressionConfig(Bitmap.Config config) Set the Bitmap Compress Config
void	setCompressFormat(Bitmap.CompressFormat compressFormat) Set the compress format
void	setCompressQuality(Integer compressQuality) Set the compress quality.
void	setGoogleTiles(boolean googleTiles) Set the Google Tiles flag to true to generate Google tile format tiles.
void	setProgress(GeoPackageProgress progress) Set the progress tracker
void	setScaling(TileScaling scaling) Set the tile scaling settings

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

context

protected final Context context

Context

projection

protected mil.nga.sf.proj.Projection projection

Tiles projection

boundingBox

protected BoundingBox boundingBox

Tile bounding box

Constructor Detail

TileGenerator

public TileGenerator(Context context,
                     GeoPackage geoPackage,
                     String tableName,
                     int minZoom,
                     int maxZoom,
                     BoundingBox boundingBox,
                     mil.nga.sf.proj.Projection projection)

Constructor

Parameters:

context - app context

geoPackage - GeoPackage

tableName - table name

minZoom - min zoom

maxZoom - max zoom

boundingBox - tiles bounding box

projection - tiles projection

Since:

1.3.0

Method Detail

getGeoPackage

public GeoPackage getGeoPackage()

Get the GeoPackage

Returns:

GeoPackage

Since:

1.2.5

getTableName

public String getTableName()

Get the table name

Returns:

table name

Since:

1.2.5

getMinZoom

public int getMinZoom()

Get the min zoom

Returns:

min zoom

Since:

1.2.5

getMaxZoom

public int getMaxZoom()

Get the max zoom

Returns:

max zoom

Since:

1.2.5

setCompressFormat

public void setCompressFormat(Bitmap.CompressFormat compressFormat)

Set the compress format

Parameters:

compressFormat - compression format

getCompressFormat

public Bitmap.CompressFormat getCompressFormat()

Get the compress format

Returns:

compress format

Since:

1.2.5

setCompressQuality

public void setCompressQuality(Integer compressQuality)

Set the compress quality. The Compress format must be set for this to be used.

Parameters:

compressQuality - compression quality

getCompressQuality

public Integer getCompressQuality()

Get the compress quality

Returns:

compress quality or null

Since:

1.2.5

setProgress

public void setProgress(GeoPackageProgress progress)

Set the progress tracker

Parameters:

progress - progress tracker

getProgress

public GeoPackageProgress getProgress()

Get the progress tracker

Returns:

progress

Since:

1.2.5

setBitmapCompressionConfig

public void setBitmapCompressionConfig(Bitmap.Config config)

Set the Bitmap Compress Config

Parameters:

config - bitmap config

setGoogleTiles

public void setGoogleTiles(boolean googleTiles)

Set the Google Tiles flag to true to generate Google tile format tiles. Default is false

Parameters:

googleTiles - Google Tiles flag

isGoogleTiles

public boolean isGoogleTiles()

Is the Google Tiles flag set to generate Google tile format tiles.

Returns:

true if Google Tiles format, false if GeoPackage

Since:

1.2.5

getScaling

public TileScaling getScaling()

Get the tile scaling settings

Returns:

tile scaling

Since:

2.0.2

setScaling

public void setScaling(TileScaling scaling)

Set the tile scaling settings

Parameters:

scaling - tile scaling

Since:

2.0.2

getTileCount

public int getTileCount()

Get the tile count of tiles to be generated

Returns:

tile count

generateTiles

public int generateTiles()
                  throws SQLException,
                         IOException

Generate the tiles

Returns:

tiles created

Throws:

SQLException

IOException

close

public void close()

Close the GeoPackage

preTileGeneration

protected abstract void preTileGeneration()

Called after set up and right before tile generation starts for the first zoom level

createTile

protected abstract byte[] createTile(int z,
                                     long x,
                                     long y)

Create the tile

Parameters:

z -

x -

y -

Returns: