Package it.tidalwave.mapviewer

Interface Projection

All Known Subinterfaces:

TileSource

All Known Implementing Classes:

MercatorProjection, OpenStreetMapTileSource, OpenTopoMapTileSource, TileSourceSupport

public interface Projection

This class is responsible for converting (latitude, longitude) into rectilinear (x,y) coordinates (to be used by a map).

Author:

Fabrizio Giudici

Method Summary

Modifier and Type	Method	Description
MapPoint	coordinatesToMapPoint(MapCoordinates coordinates, double zoom)	Returns a MapPoint converted from the given coordinates and zoom level.
MapCoordinates	mapPointToCoordinates(MapPoint mapPoint, double zoom)	Returns MapCoordinates converted from the point coordinates and zoom level.
double	metersPerPixel(MapCoordinates coordinates, double zoom)	Returns the map scale (expressed in meters per pixel) at the given zoom level.

Method Details

coordinatesToMapPoint

@Nonnull
MapPoint coordinatesToMapPoint(@Nonnull
 MapCoordinates coordinates,
 double zoom)

Returns a MapPoint converted from the given coordinates and zoom level..

Parameters:

coordinates - the coordinates to convert

zoom - the zoom level

Returns:

a MapPoint converted from the given coordinates and zoom level

mapPointToCoordinates

@Nonnull
MapCoordinates mapPointToCoordinates(@Nonnull
 MapPoint mapPoint,
 double zoom)

Returns MapCoordinates converted from the point coordinates and zoom level..

Parameters:

mapPoint - the point

zoom - the zoom level

Returns:

MapCoordinates converted from the point coordinates and zoom level

metersPerPixel

double metersPerPixel(@Nonnull
 MapCoordinates coordinates,
 double zoom)

Returns the map scale (expressed in meters per pixel) at the given zoom level..

Parameters:

coordinates - coordinates

zoom - the zoom level

Returns:

the map scale (expressed in meters per pixel) at the given zoom level