Package mil.nga.geopackage.tiles.user

Class TileDaoUtils

java.lang.Object

mil.nga.geopackage.tiles.user.TileDaoUtils

public class TileDaoUtils
extends Object

Tile Data Access Object utilities

Author:

osbornb

Constructor Summary

Constructors

Constructor	Description
TileDaoUtils()

Method Summary

Modifier and Type	Method	Description
static void	adjustTileMatrixLengths(TileMatrixSet tileMatrixSet, List<TileMatrix> tileMatrices)	Adjust the tile matrix lengths if needed.
static Long	getApproximateZoomLevel(double[] widths, double[] heights, List<TileMatrix> tileMatrices, double length)	Get the approximate zoom level for the provided length in the default units.
static Long	getApproximateZoomLevel(double[] widths, double[] heights, List<TileMatrix> tileMatrices, double width, double height)	Get the approximate zoom level for the provided width and height in the default units.
static Long	getClosestZoomLevel(double[] widths, double[] heights, List<TileMatrix> tileMatrices, double length)	Get the closest zoom level for the provided width and height in the default units
static Long	getClosestZoomLevel(double[] widths, double[] heights, List<TileMatrix> tileMatrices, double width, double height)	Get the closest zoom level for the provided width and height in the default units
static long	getMapMaxZoom(TileMatrixSet tileMatrixSet, List<TileMatrix> tileMatrices)	Get the map max zoom level
static long	getMapMinZoom(TileMatrixSet tileMatrixSet, List<TileMatrix> tileMatrices)	Get the map min zoom level
static long	getMapZoom(TileMatrixSet tileMatrixSet, TileMatrix tileMatrix)	Get the map zoom level
static long[]	getMapZoomRange(TileMatrixSet tileMatrixSet, List<TileMatrix> tileMatrices)	Get the map zoom level range
static double	getMaxLength(double[] widths, double[] heights)	Get the max distance length that matches the tile widths and heights
static double	getMinLength(double[] widths, double[] heights)	Get the min distance length that matches the tile widths and heights
static Long	getZoomLevel(double[] widths, double[] heights, List<TileMatrix> tileMatrices, double length)	Get the zoom level for the provided width and height in the default units
static Long	getZoomLevel(double[] widths, double[] heights, List<TileMatrix> tileMatrices, double width, double height)	Get the zoom level for the provided width and height in the default units

Methods inherited from class java.lang.Object

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

Constructor Detail

TileDaoUtils

public TileDaoUtils()

Method Detail

adjustTileMatrixLengths

public static void adjustTileMatrixLengths(TileMatrixSet tileMatrixSet,
                                           List<TileMatrix> tileMatrices)

Adjust the tile matrix lengths if needed. Check if the tile matrix width and height need to expand to account for pixel * number of pixels fitting into the tile matrix lengths

Parameters:

tileMatrixSet - tile matrix set

tileMatrices - tile matrices

getZoomLevel

public static Long getZoomLevel(double[] widths,
                                double[] heights,
                                List<TileMatrix> tileMatrices,
                                double length)

Get the zoom level for the provided width and height in the default units

Parameters:

widths - sorted widths

heights - sorted heights

tileMatrices - tile matrices

length - in default units

Returns:

tile matrix zoom level

getZoomLevel

public static Long getZoomLevel(double[] widths,
                                double[] heights,
                                List<TileMatrix> tileMatrices,
                                double width,
                                double height)

Get the zoom level for the provided width and height in the default units

Parameters:

widths - sorted widths

heights - sorted heights

tileMatrices - tile matrices

width - in default units

height - in default units

Returns:

tile matrix zoom level

Since:

1.2.1

getClosestZoomLevel

public static Long getClosestZoomLevel(double[] widths,
                                       double[] heights,
                                       List<TileMatrix> tileMatrices,
                                       double length)

Get the closest zoom level for the provided width and height in the default units

Parameters:

widths - sorted widths

heights - sorted heights

tileMatrices - tile matrices

length - in default units

Returns:

tile matrix zoom level

Since:

1.2.1

getClosestZoomLevel

public static Long getClosestZoomLevel(double[] widths,
                                       double[] heights,
                                       List<TileMatrix> tileMatrices,
                                       double width,
                                       double height)

Get the closest zoom level for the provided width and height in the default units

Parameters:

widths - sorted widths

heights - sorted heights

tileMatrices - tile matrices

width - in default units

height - in default units

Returns:

tile matrix zoom level

Since:

1.2.1

getApproximateZoomLevel

public static Long getApproximateZoomLevel(double[] widths,
                                           double[] heights,
                                           List<TileMatrix> tileMatrices,
                                           double length)

Get the approximate zoom level for the provided length in the default units. Tiles may or may not exist for the returned zoom level. The approximate zoom level is determined using a factor of 2 from the zoom levels with tiles.

Parameters:

widths - sorted widths

heights - sorted heights

tileMatrices - tile matrices

length - length in default units

Returns:

actual or approximate tile matrix zoom level

Since:

2.0.2

getApproximateZoomLevel

public static Long getApproximateZoomLevel(double[] widths,
                                           double[] heights,
                                           List<TileMatrix> tileMatrices,
                                           double width,
                                           double height)

Get the approximate zoom level for the provided width and height in the default units. Tiles may or may not exist for the returned zoom level. The approximate zoom level is determined using a factor of 2 from the zoom levels with tiles.

Parameters:

widths - sorted widths

heights - sorted heights

tileMatrices - tile matrices

width - width in default units

height - height in default units

Returns:

actual or approximate tile matrix zoom level

Since:

2.0.2

getMaxLength

public static double getMaxLength(double[] widths,
                                  double[] heights)

Get the max distance length that matches the tile widths and heights

Parameters:

widths - sorted tile matrix widths

heights - sorted tile matrix heights

Returns:

max length

Since:

1.2.0

getMinLength

public static double getMinLength(double[] widths,
                                  double[] heights)

Get the min distance length that matches the tile widths and heights

Parameters:

widths - sorted tile matrix widths

heights - sorted tile matrix heights

Returns:

min length

Since:

1.2.0

getMapZoomRange

public static long[] getMapZoomRange(TileMatrixSet tileMatrixSet,
                                     List<TileMatrix> tileMatrices)

Get the map zoom level range

Parameters:

tileMatrixSet - tile matrix set

tileMatrices - tile matrices

Returns:

map zoom level range, min at index 0, max at index 1

Since:

5.0.0

getMapMinZoom

public static long getMapMinZoom(TileMatrixSet tileMatrixSet,
                                 List<TileMatrix> tileMatrices)

Get the map min zoom level

Parameters:

tileMatrixSet - tile matrix set

tileMatrices - tile matrices

Returns:

map min zoom level

Since:

5.0.0

getMapMaxZoom

public static long getMapMaxZoom(TileMatrixSet tileMatrixSet,
                                 List<TileMatrix> tileMatrices)

Get the map max zoom level

Parameters:

tileMatrixSet - tile matrix set

tileMatrices - tile matrices

Returns:

map max zoom level

Since:

5.0.0

getMapZoom

public static long getMapZoom(TileMatrixSet tileMatrixSet,
                              TileMatrix tileMatrix)

Get the map zoom level

Parameters:

tileMatrixSet - tile matrix set

tileMatrix - tile matrix

Returns:

map zoom level

Since:

5.0.0