mil.nga.geopackage.tiles

Class TileUtils

java.lang.Object

mil.nga.geopackage.tiles.TileUtils

public class TileUtils
extends Object

Tile utilities and constants

Since:

3.2.0

Field Summary

Fields

Modifier and Type	Field and Description
static float	HIGH_DENSITY High density scale
static int	TILE_DP Displayed device-independent pixels
static int	TILE_PIXELS_DEFAULT Tile pixels for default dpi tiles
static int	TILE_PIXELS_HIGH Tile pixels for high dpi tiles

Constructor Summary

Constructors

Constructor and Description
TileUtils()

Method Summary

Modifier and Type	Method and Description
static float	density(int tileLength) Get the density based upon the tile length (width or height)
static float	density(int tileWidth, int tileHeight) Get the density based upon the tile dimensions
static float	tileDensity(float density, int tileLength) Get the tile density based upon the display density scale and tile length (width or height)
static float	tileDensity(float density, int tileWidth, int tileHeight) Get the tile density based upon the display density scale and tile dimensions
static int	tileLength(float density) Get the tile side (width and height) dimension based upon the display density scale

Methods inherited from class java.lang.Object

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

Field Detail

TILE_DP

public static final int TILE_DP

Displayed device-independent pixels

See Also:

Constant Field Values

TILE_PIXELS_DEFAULT

public static final int TILE_PIXELS_DEFAULT

Tile pixels for default dpi tiles

See Also:

Constant Field Values

TILE_PIXELS_HIGH

public static final int TILE_PIXELS_HIGH

Tile pixels for high dpi tiles

See Also:

Constant Field Values

HIGH_DENSITY

public static final float HIGH_DENSITY

High density scale

See Also:

Constant Field Values

Constructor Detail

TileUtils

public TileUtils()

Method Detail

tileLength

public static int tileLength(float density)

Get the tile side (width and height) dimension based upon the display density scale

Parameters:

density - display density: DisplayMetrics.density

Returns:

default tile length

tileDensity

public static float tileDensity(float density,
                                int tileWidth,
                                int tileHeight)

Get the tile density based upon the display density scale and tile dimensions

Parameters:

density - display density: DisplayMetrics.density

tileWidth - tile width

tileHeight - tile height

Returns:

tile density

tileDensity

public static float tileDensity(float density,
                                int tileLength)

Get the tile density based upon the display density scale and tile length (width or height)

Parameters:

density - display density: DisplayMetrics.density

tileLength - tile length (width or height)

Returns:

tile density

density

public static float density(int tileWidth,
                            int tileHeight)

Get the density based upon the tile dimensions

Parameters:

tileWidth - tile width

tileHeight - tile height

Returns:

density

density

public static float density(int tileLength)

Get the density based upon the tile length (width or height)

Parameters:

tileLength - tile length (width or height)

Returns:

density