com.gwidgets.api.leaflet

Interface ICRS

@JsType(isNative=true)
public interface ICRS

Defines coordinate reference systems for projecting geographical points into pixel (screen) coordinates and back (and to coordinates in other units for WMS services).

Author:

Zakaria Amine

Method Summary

Modifier and Type	Method and Description
Point	latLngToPoint(LatLng latlng, java.lang.Number zoom) Projects geographical coordinates on a given zoom into pixel coordinates.
LatLng	pointToLatLng(Point point, java.lang.Number zoom) The inverse of latLngToPoint.
Point	project(LatLng latlng) Projects geographical coordinates into coordinates in units accepted for this CRS (e.g.
java.lang.Number	scale(java.lang.Number zoom) Returns the scale used when transforming projected coordinates into pixel coordinates for a particular zoom.

Method Detail

latLngToPoint

Point latLngToPoint(LatLng latlng,
                    java.lang.Number zoom)

Projects geographical coordinates on a given zoom into pixel coordinates.

Parameters:

latlng - the latlng

zoom - the zoom

Returns:

the point

pointToLatLng

LatLng pointToLatLng(Point point,
                     java.lang.Number zoom)

The inverse of latLngToPoint. Projects pixel coordinates on a given zoom into geographical coordinates.

Parameters:

point - the point

zoom - the zoom

Returns:

the lat lng

project

Point project(LatLng latlng)

Projects geographical coordinates into coordinates in units accepted for this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).

Parameters:

latlng - the latlng

Returns:

the point

scale

java.lang.Number scale(java.lang.Number zoom)

Returns the scale used when transforming projected coordinates into pixel coordinates for a particular zoom. For example, it returns 256 * 2^zoom for Mercator-based CRS.

Parameters:

zoom - the zoom

Returns:

the number