Files
openlayers/src/ol/proj/EPSG4326.js
T
Tim Schaub ad62739a6e Use blocked scoped variables
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
2018-01-12 00:50:30 -07:00

80 lines
2.1 KiB
JavaScript

/**
* @module ol/proj/EPSG4326
*/
import {inherits} from '../index.js';
import Projection from '../proj/Projection.js';
import Units from '../proj/Units.js';
const _ol_proj_EPSG4326_ = {};
/**
* @classdesc
* Projection object for WGS84 geographic coordinates (EPSG:4326).
*
* Note that OpenLayers does not strictly comply with the EPSG definition.
* The EPSG registry defines 4326 as a CRS for Latitude,Longitude (y,x).
* OpenLayers treats EPSG:4326 as a pseudo-projection, with x,y coordinates.
*
* @constructor
* @extends {ol.proj.Projection}
* @param {string} code Code.
* @param {string=} opt_axisOrientation Axis orientation.
* @private
*/
_ol_proj_EPSG4326_.Projection_ = function(code, opt_axisOrientation) {
Projection.call(this, {
code: code,
units: Units.DEGREES,
extent: _ol_proj_EPSG4326_.EXTENT,
axisOrientation: opt_axisOrientation,
global: true,
metersPerUnit: _ol_proj_EPSG4326_.METERS_PER_UNIT,
worldExtent: _ol_proj_EPSG4326_.EXTENT
});
};
inherits(_ol_proj_EPSG4326_.Projection_, Projection);
/**
* Radius of WGS84 sphere
*
* @const
* @type {number}
*/
_ol_proj_EPSG4326_.RADIUS = 6378137;
/**
* Extent of the EPSG:4326 projection which is the whole world.
*
* @const
* @type {ol.Extent}
*/
_ol_proj_EPSG4326_.EXTENT = [-180, -90, 180, 90];
/**
* @const
* @type {number}
*/
_ol_proj_EPSG4326_.METERS_PER_UNIT = Math.PI * _ol_proj_EPSG4326_.RADIUS / 180;
/**
* Projections equal to EPSG:4326.
*
* @const
* @type {Array.<ol.proj.Projection>}
*/
_ol_proj_EPSG4326_.PROJECTIONS = [
new _ol_proj_EPSG4326_.Projection_('CRS:84'),
new _ol_proj_EPSG4326_.Projection_('EPSG:4326', 'neu'),
new _ol_proj_EPSG4326_.Projection_('urn:ogc:def:crs:EPSG::4326', 'neu'),
new _ol_proj_EPSG4326_.Projection_('urn:ogc:def:crs:EPSG:6.6:4326', 'neu'),
new _ol_proj_EPSG4326_.Projection_('urn:ogc:def:crs:OGC:1.3:CRS84'),
new _ol_proj_EPSG4326_.Projection_('urn:ogc:def:crs:OGC:2:84'),
new _ol_proj_EPSG4326_.Projection_('http://www.opengis.net/gml/srs/epsg.xml#4326', 'neu'),
new _ol_proj_EPSG4326_.Projection_('urn:x-ogc:def:crs:EPSG:4326', 'neu')
];
export default _ol_proj_EPSG4326_;