Package mil.nga.geopackage.tiles.features

Class FeatureTileGenerator

java.lang.Object

mil.nga.geopackage.tiles.TileGenerator

mil.nga.geopackage.tiles.features.FeatureTileGenerator

public class FeatureTileGenerator
extends TileGenerator

Creates a set of tiles within a GeoPackage by generating tiles from features

Field Summary

Fields inherited from class mil.nga.geopackage.tiles.TileGenerator

boundingBox, context, projection

Constructor Summary

Constructors

Constructor	Description
FeatureTileGenerator(Context context, GeoPackage geoPackage, String tableName, FeatureTiles featureTiles, int minZoom, int maxZoom, BoundingBox boundingBox, Projection projection)	Constructor
FeatureTileGenerator(Context context, GeoPackage geoPackage, String tableName, FeatureTiles featureTiles, int minZoom, int maxZoom, Projection projection)	Constructor, find the the bounding box from the feature table
FeatureTileGenerator(Context context, GeoPackage geoPackage, String tableName, FeatureTiles featureTiles, GeoPackage featureGeoPackage, int minZoom, int maxZoom, BoundingBox boundingBox, Projection projection)	Constructor
FeatureTileGenerator(Context context, GeoPackage geoPackage, String tableName, FeatureTiles featureTiles, GeoPackage featureGeoPackage, int minZoom, int maxZoom, Projection projection)	Constructor, find the the bounding box from the feature table

Method Summary

Modifier and Type	Method	Description
void	close()	Close the GeoPackage
protected byte[]	createTile(int z, long x, long y)	Create the tile
BoundingBox	getBoundingBox(int zoom)	Get the bounding box, possibly expanded for the zoom level
boolean	isLinkTables()	Is the feature table going to be linked with the tile table? Defaults to true.
protected void	preTileGeneration()	Called after set up and right before tile generation starts for the first zoom level
void	setLinkTables(boolean linkTables)	Set the link tables flag

Methods inherited from class mil.nga.geopackage.tiles.TileGenerator

generateTiles, getBoundingBox, getCompressFormat, getCompressQuality, getGeoPackage, getMaxZoom, getMinZoom, getProgress, getScaling, getTableName, getTileCount, isSkipExisting, isXYZTiles, setBitmapCompressionConfig, setCompressFormat, setCompressQuality, setProgress, setScaling, setSkipExisting, setXYZTiles

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureTileGenerator

public FeatureTileGenerator(Context context,
                            GeoPackage geoPackage,
                            String tableName,
                            FeatureTiles featureTiles,
                            int minZoom,
                            int maxZoom,
                            BoundingBox boundingBox,
                            Projection projection)

Constructor

Parameters:

context - app context

geoPackage - GeoPackage

tableName - table name

featureTiles - feature tiles

minZoom - min zoom

maxZoom - max zoom

boundingBox - tiles bounding box

projection - tiles projection

Since:

1.3.0

FeatureTileGenerator

public FeatureTileGenerator(Context context,
                            GeoPackage geoPackage,
                            String tableName,
                            FeatureTiles featureTiles,
                            GeoPackage featureGeoPackage,
                            int minZoom,
                            int maxZoom,
                            BoundingBox boundingBox,
                            Projection projection)

Constructor

Parameters:

context - app context

geoPackage - GeoPackage

tableName - table name

featureTiles - feature tiles

featureGeoPackage - feature GeoPackage if different from the destination

minZoom - min zoom

maxZoom - max zoom

boundingBox - tiles bounding box

projection - tiles projection

Since:

3.2.0

FeatureTileGenerator

public FeatureTileGenerator(Context context,
                            GeoPackage geoPackage,
                            String tableName,
                            FeatureTiles featureTiles,
                            int minZoom,
                            int maxZoom,
                            Projection projection)

Constructor, find the the bounding box from the feature table

Parameters:

context - app context

geoPackage - GeoPackage

tableName - table name

featureTiles - feature tiles

minZoom - min zoom

maxZoom - max zoom

projection - tiles projection

Since:

3.2.0

FeatureTileGenerator

public FeatureTileGenerator(Context context,
                            GeoPackage geoPackage,
                            String tableName,
                            FeatureTiles featureTiles,
                            GeoPackage featureGeoPackage,
                            int minZoom,
                            int maxZoom,
                            Projection projection)

Constructor, find the the bounding box from the feature table

Parameters:

context - app context

geoPackage - GeoPackage

tableName - table name

featureTiles - feature tiles

featureGeoPackage - feature GeoPackage if different from the destination

minZoom - min zoom

maxZoom - max zoom

projection - tiles projection

Since:

3.2.0

Method Detail

getBoundingBox

public BoundingBox getBoundingBox(int zoom)

Get the bounding box, possibly expanded for the zoom level

Overrides:

getBoundingBox in class TileGenerator

Parameters:

zoom - zoom level

Returns:

original or expanded bounding box

close

public void close()

Close the GeoPackage

Overrides:

close in class TileGenerator

isLinkTables

public boolean isLinkTables()

Is the feature table going to be linked with the tile table? Defaults to true.

Returns:

true if tables will be linked upon generation

Since:

1.2.5

setLinkTables

public void setLinkTables(boolean linkTables)

Set the link tables flag

Parameters:

linkTables - link tables flag

Since:

1.2.5

preTileGeneration

protected void preTileGeneration()

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

Specified by:

preTileGeneration in class TileGenerator

createTile

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

Create the tile

Specified by:

createTile in class TileGenerator

Parameters:

z - zoom level

x - x coordinate

y - y coordinate

Returns:

tile bytes