com.nutiteq.maps
Class BaseKaMap

java.lang.Object
  com.nutiteq.maps.BaseMap
      com.nutiteq.maps.projections.EPSG4326
          com.nutiteq.maps.BaseKaMap

All Implemented Interfaces:

GeoMap, Projection

Direct Known Subclasses:

KaMap, StreamedKaMap

public abstract class BaseKaMap
extends EPSG4326
implements GeoMap

Constructor Summary

BaseKaMap(Copyright copyright, int tileSize, int[] scales, int minZoom, int maxZoom)

BaseKaMap(java.lang.String copyright, int tileSize, int[] scales, int minZoom, int maxZoom)

Method Summary

int	getMapHeight(int zoom) Get map height for given zoom level.
int	getMapWidth(int zoom) Get map width for given zoom level.
TileMapBounds	getTileMapBounds(int zoom) Get map bounds for specified zoom level.
Point	mapPosToWgs(MapPos pos) Convert a point on pixel map to WGS84 coordinates (decimal coordinates * 1000000)
MapPos	zoom(MapPos middlePoint, int zoomSteps) Handles zoom for display middle point (as default the red cross on screen) by assuming that map size between single zoom levels is always magnitude of two (next map size is two times smaller or bigger).
MapPos	wgsToMapPos(Point wgs, int zoom) Convert WGS84 coordinates to pixel point on map

Methods inherited from class com.nutiteq.maps.projections.EPSG4326

getRatio, setWidthHeightRatio

Methods inherited from class com.nutiteq.maps.BaseMap

addTileOverlay, getCopyright, getInitializationTask, getMaxZoom, getMinZoom, getMissingTileImage, getZoomRange, getTileOverlay, getTileSize, setCopyright, setMissingTileImage

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.nutiteq.maps.GeoMap

addTileOverlay, getCopyright, getInitializationTask, getMaxZoom, getMinZoom, getMissingTileImage, getZoomRange, getTileOverlay, getTileSize, setMissingTileImage

Constructor Detail

BaseKaMap

public BaseKaMap(java.lang.String copyright,
                 int tileSize,
                 int[] scales,
                 int minZoom,
                 int maxZoom)

BaseKaMap

public BaseKaMap(Copyright copyright,
                 int tileSize,
                 int[] scales,
                 int minZoom,
                 int maxZoom)

Method Detail

mapPosToWgs

public Point mapPosToWgs(MapPos pos)

Description copied from interface: Projection

Convert a point on pixel map to WGS84 coordinates (decimal coordinates * 1000000)

Specified by:

mapPosToWgs in interface GeoMap

Specified by:

mapPosToWgs in interface Projection

Overrides:

mapPosToWgs in class EPSG4326

Parameters:

pos - pixel point on the map (on 256x256 pixels map of the world 0E 0N is located at map pixel 128x : 128y)

Returns:

point in internally used WGS84 format (decimal degrees * 1000000)

wgsToMapPos

public MapPos wgsToMapPos(Point wgs,
                          int zoom)

Description copied from interface: Projection

Convert WGS84 coordinates to pixel point on map

Specified by:

wgsToMapPos in interface GeoMap

Specified by:

wgsToMapPos in interface Projection

Overrides:

wgsToMapPos in class EPSG4326

Parameters:

wgs - WGS84 coordinates (decimal coordinates * 1000000)

zoom - zoom level for the map

Returns:

pixel position on map for the coordinates

getMapHeight

public int getMapHeight(int zoom)

Description copied from class: BaseMap

Get map height for given zoom level. Default implementation is done for OpenStreetMap system (map tile edge is power of 2)

Specified by:

getMapHeight in interface GeoMap

Overrides:

getMapHeight in class BaseMap

Parameters:

zoom - zoom level for witch to get map height

Returns:

map height

getMapWidth

public int getMapWidth(int zoom)

Description copied from class: BaseMap

Get map width for given zoom level. Default implementation is done for OpenStreetMap system (map tile edge is power of 2)

Specified by:

getMapWidth in interface GeoMap

Overrides:

getMapWidth in class BaseMap

Parameters:

zoom - zoom level for witch to get map width

Returns:

map width

zoom

public MapPos zoom(MapPos middlePoint,
                   int zoomSteps)

Description copied from class: BaseMap

Handles zoom for display middle point (as default the red cross on screen) by assuming that map size between single zoom levels is always magnitude of two (next map size is two times smaller or bigger).

For example for OpenStreetMap zoom level 0 world size is 256x256 pixels and center point will be in 128x128. If zoomed in one level world size will be 512x512 pixels and center point will be at 256x256.

Specified by:

zoom in interface GeoMap

Overrides:

zoom in class BaseMap

Parameters:

middlePoint - map position on witch to perform zoom action

zoomSteps - zoom steps needed to handle

Returns:

maps position on new zoom level

getTileMapBounds

public TileMapBounds getTileMapBounds(int zoom)

Description copied from class: BaseMap

Get map bounds for specified zoom level.

Specified by:

getTileMapBounds in interface GeoMap

Overrides:

getTileMapBounds in class BaseMap

Parameters:

zoom - zoom level for witch to get map bounds

Returns:

bounds for zoom level for given map