com.kheops.jmap.spatial

Class MapboxConversions

java.lang.Object

com.kheops.jmap.spatial.MapboxConversions

public class MapboxConversions
extends java.lang.Object

A set of Geo and Terrain Conversion utils.

Inspired by mapbox-unity-sdk/sdkproject/Assets/Mapbox/Unity/Utilities/Conversions.cs

Since:

7.0 Funafuti

See Also:

https://github.com/mapbox/mapbox-unity-sdk/

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MapboxConversions.JMapAnnotationGeoElement
static class	MapboxConversions.MapboxAnnotationProperties

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ANNOTATION_TEXT_PROPERTY_KEY
static java.lang.String	ANNOTATION_TEXT_ROTATE_PROPERTY_KEY
static java.lang.String	ANNOTATION_TEXT_SIZE_PROPERTY_KEY
static int	DEFAULT_TILE_SIZE
static java.lang.String	LABEL_TEXT_PROPERTY_KEY
static int	MAX_ZOOM
static int	MIN_ZOOM

Constructor Summary

Constructors

Constructor and Description
MapboxConversions()

Method Summary

Modifier and Type	Method and Description
static MapboxConversions.MapboxAnnotationProperties	getMapboxAnnotationPropertiesAtMaxZoom(Annotation annotation, Projection sourceProjection)
static double	getMeanLatitudeForProject(JMapServerProject jMapServerProject) Returns the mean latitude for a JMap Server Layer.
static double	resolutionToScale(double resolution, double latitude) Compute scale for resolution.
static double	resolutionToZoom(double resolution, int tileSize, int defaultZoom, double latitude) Compute zoom for resolution.
static double	scaleToZoom(double scale, int tileSize, int defaultZoom, double latitude) Compute zoom for scale.
static Rectangle	tileToProjectedBounds(int x, int y, int zoom, int tileSize) Gets the tile bounds in meters from an xy tile ID.
static double	zoomToResolution(int zoom, int tileSize, double latitude) Compute resolution for zoom and tile size.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_ZOOM

public static final int MIN_ZOOM

See Also:

Constant Field Values

MAX_ZOOM

public static final int MAX_ZOOM

See Also:

Constant Field Values

DEFAULT_TILE_SIZE

public static final int DEFAULT_TILE_SIZE

See Also:

Constant Field Values

ANNOTATION_TEXT_PROPERTY_KEY

public static final java.lang.String ANNOTATION_TEXT_PROPERTY_KEY

See Also:

Constant Field Values

ANNOTATION_TEXT_ROTATE_PROPERTY_KEY

public static final java.lang.String ANNOTATION_TEXT_ROTATE_PROPERTY_KEY

See Also:

Constant Field Values

ANNOTATION_TEXT_SIZE_PROPERTY_KEY

public static final java.lang.String ANNOTATION_TEXT_SIZE_PROPERTY_KEY

See Also:

Constant Field Values

LABEL_TEXT_PROPERTY_KEY

public static final java.lang.String LABEL_TEXT_PROPERTY_KEY

See Also:

Constant Field Values

Constructor Detail

MapboxConversions

public MapboxConversions()

Method Detail

tileToProjectedBounds

public static Rectangle tileToProjectedBounds(int x,
                                              int y,
                                              int zoom,
                                              int tileSize)

Gets the tile bounds in meters from an xy tile ID. Fit projection Spherical Mercator EPSG:900913 or Pseudo Mercator EPSG:3857.

Parameters:

x -

y -

zoom -

tileSize -

Returns:

bounds

getMeanLatitudeForProject

public static double getMeanLatitudeForProject(JMapServerProject jMapServerProject)

Returns the mean latitude for a JMap Server Layer. Will return zero if latitude cannot be computed.

Parameters:

jMapServerProject -

Returns:

latitude

resolutionToScale

public static double resolutionToScale(double resolution,
                                       double latitude)

Compute scale for resolution.

Parameters:

resolution -

Returns:

scale

resolutionToZoom

public static double resolutionToZoom(double resolution,
                                      int tileSize,
                                      int defaultZoom,
                                      double latitude)

Compute zoom for resolution.

Parameters:

resolution -

tileSize -

Returns:

zoom

scaleToZoom

public static double scaleToZoom(double scale,
                                 int tileSize,
                                 int defaultZoom,
                                 double latitude)

Compute zoom for scale.

Parameters:

scale -

tileSize -

Returns:

zoom

zoomToResolution

public static double zoomToResolution(int zoom,
                                      int tileSize,
                                      double latitude)

Compute resolution for zoom and tile size.

Parameters:

zoom -

tileSize -

Returns:

resolution

getMapboxAnnotationPropertiesAtMaxZoom

public static MapboxConversions.MapboxAnnotationProperties getMapboxAnnotationPropertiesAtMaxZoom(Annotation annotation,
                                                                                                  Projection sourceProjection)