Package mil.nga.geopackage.tiles.features

Class DefaultFeatureTiles

java.lang.Object

mil.nga.geopackage.tiles.features.FeatureTiles

mil.nga.geopackage.tiles.features.DefaultFeatureTiles

public class DefaultFeatureTiles
extends FeatureTiles

Default Feature Tiles implementation using Android Graphics to draw tiles from Well Known Binary Geometries

Since:

1.3.1

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	cacheGeometries	When true, geometries are cached.
static final int	DEFAULT_GEOMETRY_CACHE_SIZE	Default max number of feature geometries to retain in cache
protected final LruCache<Long,GeoPackageGeometryData>	geometryCache	Geometry cache

Fields inherited from class mil.nga.geopackage.tiles.features.FeatureTiles

compressFormat, context, density, featureDao, featureTableStyles, fillPolygon, heightOverlap, indexManager, linePaint, lineStrokeWidth, maxFeaturesPerTile, maxFeaturesTileDraw, pointIcon, pointPaint, pointRadius, polygonFillPaint, polygonPaint, polygonStrokeWidth, projection, simplifyGeometries, tileHeight, tileWidth, WEB_MERCATOR_PROJECTION, WGS_84_PROJECTION, widthOverlap

Constructor Summary

Constructors

Constructor	Description
DefaultFeatureTiles(Context context)	Constructor, only for retrieving default feature attributes
DefaultFeatureTiles(Context context, FeatureDao featureDao)	Constructor
DefaultFeatureTiles(Context context, FeatureDao featureDao, float density)	Constructor
DefaultFeatureTiles(Context context, FeatureDao featureDao, int width, int height)	Constructor
DefaultFeatureTiles(Context context, GeoPackage geoPackage, FeatureDao featureDao)	Constructor, auto creates the index manager for indexed tables and feature styles for styled tables
DefaultFeatureTiles(Context context, GeoPackage geoPackage, FeatureDao featureDao, float density)	Constructor, auto creates the index manager for indexed tables and feature styles for styled tables
DefaultFeatureTiles(Context context, GeoPackage geoPackage, FeatureDao featureDao, float density, int width, int height)	Constructor, auto creates the index manager for indexed tables and feature styles for styled tables
DefaultFeatureTiles(Context context, GeoPackage geoPackage, FeatureDao featureDao, int width, int height)	Constructor, auto creates the index manager for indexed tables and feature styles for styled tables

Method Summary

Modifier and Type	Method	Description
void	clearCache()	Clear all caches
void	clearGeometryCache()	Clear the geometry cache
Bitmap	drawTile(int zoom, BoundingBox boundingBox, List<FeatureRow> featureRow)	Draw a tile bitmap from the feature rows
Bitmap	drawTile(int zoom, BoundingBox boundingBox, FeatureIndexResults results)	Draw a tile bitmap from feature index results
Bitmap	drawTile(int zoom, BoundingBox boundingBox, FeatureCursor cursor)	Draw a tile bitmap from feature geometries in the provided cursor
boolean	isCacheGeometries()	Is caching geometries enabled?
void	setCacheGeometries(boolean cacheGeometries)	Set the cache geometries flag
void	setGeometryCacheSize(int size)	Set / resize the geometry cache size

Methods inherited from class mil.nga.geopackage.tiles.features.FeatureTiles

calculateDrawOverlap, calculateStylePixelBounds, calculateStylePixelBounds, checkIfDrawn, clearIconCache, clearStylePaintCache, close, createNewBitmap, drawTile, drawTileBytes, drawTileQueryAll, drawTileQueryIndex, expandBoundingBox, expandBoundingBox, expandBoundingBox, getCompressFormat, getDensity, getFeatureDao, getFeatureStyle, getFeatureStyle, getFeatureTableStyles, getHeightDrawOverlap, getIcon, getIndexManager, getLineAlpha, getLineColor, getLinePaint, getLinePaintCopy, getLineStrokeWidth, getMaxFeaturesPerTile, getMaxFeaturesTileDraw, getPointIcon, getPointPaint, getPointPaint, getPointRadius, getPolygonAlpha, getPolygonColor, getPolygonFillAlpha, getPolygonFillColor, getPolygonFillPaint, getPolygonFillPaintCopy, getPolygonPaint, getPolygonPaintCopy, getPolygonStrokeWidth, getProjectionToWebMercatorTransform, getTileHeight, getTileWidth, getWgs84ToWebMercatorTransform, getWidthDrawOverlap, ignoreFeatureTableStyles, isFillPolygon, isIndexQuery, isSimplifyGeometries, isTransparent, queryIndexedFeatures, queryIndexedFeatures, queryIndexedFeaturesCount, queryIndexedFeaturesCount, setCompressFormat, setDensity, setDrawOverlap, setFeatureTableStyles, setFillPolygon, setHeightDrawOverlap, setIconCacheSize, setIndexManager, setLineAlpha, setLineColor, setLinePaint, setLineStrokeWidth, setMaxFeaturesPerTile, setMaxFeaturesTileDraw, setPointIcon, setPointPaint, setPointRadius, setPolygonAlpha, setPolygonColor, setPolygonFillAlpha, setPolygonFillColor, setPolygonFillPaint, setPolygonPaint, setPolygonStrokeWidth, setSimplifyGeometries, setStylePaintCacheSize, setTileHeight, setTileWidth, setWidthDrawOverlap, simplifyPoints

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_GEOMETRY_CACHE_SIZE

public static final int DEFAULT_GEOMETRY_CACHE_SIZE

Default max number of feature geometries to retain in cache

Since:

3.3.0

See Also:

• Constant Field Values

geometryCache

protected final LruCache<Long,GeoPackageGeometryData> geometryCache

Geometry cache

cacheGeometries

protected boolean cacheGeometries

When true, geometries are cached. Default is true

Constructor Details

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 FeatureDao featureDao)

Constructor

Parameters:

context - context

featureDao - feature dao

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 FeatureDao featureDao,
 float density)

Constructor

Parameters:

context - context

featureDao - feature dao

density - display density: DisplayMetrics.density

Since:

3.2.0

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 FeatureDao featureDao,
 int width,
 int height)

Constructor

Parameters:

context - context

featureDao - feature dao

width - drawn tile width

height - drawn tile height

Since:

3.2.0

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 GeoPackage geoPackage,
 FeatureDao featureDao)

Constructor, auto creates the index manager for indexed tables and feature styles for styled tables

Parameters:

context - context

geoPackage - GeoPackage

featureDao - feature dao

Since:

3.2.0

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 GeoPackage geoPackage,
 FeatureDao featureDao,
 float density)

Constructor, auto creates the index manager for indexed tables and feature styles for styled tables

Parameters:

context - context

geoPackage - GeoPackage

featureDao - feature dao

density - display density: DisplayMetrics.density

Since:

3.2.0

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 GeoPackage geoPackage,
 FeatureDao featureDao,
 int width,
 int height)

Constructor, auto creates the index manager for indexed tables and feature styles for styled tables

Parameters:

context - context

geoPackage - GeoPackage

featureDao - feature dao

width - drawn tile width

height - drawn tile height

Since:

3.2.0

DefaultFeatureTiles

public DefaultFeatureTiles(Context context,
 GeoPackage geoPackage,
 FeatureDao featureDao,
 float density,
 int width,
 int height)

Constructor, auto creates the index manager for indexed tables and feature styles for styled tables

Parameters:

context - context

geoPackage - GeoPackage

featureDao - feature dao

density - display density: DisplayMetrics.density

width - drawn tile width

height - drawn tile height

Since:

3.2.0

DefaultFeatureTiles

public DefaultFeatureTiles(Context context)

Constructor, only for retrieving default feature attributes

Parameters:

context - context

Method Details

isCacheGeometries

public boolean isCacheGeometries()

Is caching geometries enabled?

Returns:

true if caching geometries

Since:

3.3.0

setCacheGeometries

public void setCacheGeometries(boolean cacheGeometries)

Set the cache geometries flag

Parameters:

cacheGeometries - true to cache geometries

Since:

3.3.0

clearCache

public void clearCache()

Clear all caches

Overrides:

clearCache in class FeatureTiles

clearGeometryCache

public void clearGeometryCache()

Clear the geometry cache

Since:

3.3.0

setGeometryCacheSize

public void setGeometryCacheSize(int size)

Set / resize the geometry cache size

Parameters:

size - new size

Since:

3.3.0

drawTile

public Bitmap drawTile(int zoom,
 BoundingBox boundingBox,
 FeatureIndexResults results)

Draw a tile bitmap from feature index results

Specified by:

drawTile in class FeatureTiles

Parameters:

zoom - zoom level

boundingBox - web mercator bounding box

results - feature index results

Returns:

tile

drawTile

public Bitmap drawTile(int zoom,
 BoundingBox boundingBox,
 FeatureCursor cursor)

Draw a tile bitmap from feature geometries in the provided cursor

Specified by:

drawTile in class FeatureTiles

Parameters:

zoom - zoom level

boundingBox - web mercator bounding box

cursor - feature cursor

Returns:

tile

drawTile

public Bitmap drawTile(int zoom,
 BoundingBox boundingBox,
 List<FeatureRow> featureRow)

Draw a tile bitmap from the feature rows

Specified by:

drawTile in class FeatureTiles

Parameters:

zoom - zoom level

boundingBox - web mercator bounding box

featureRow - feature row

Returns:

tile