29 lines
692 B
JavaScript
29 lines
692 B
JavaScript
|
import adjust_zone from '../common/adjust_zone';
|
||
|
|
import etmerc from './etmerc';
|
||
|
|
export var dependsOn = 'etmerc';
|
||
|
|
import {D2R} from '../constants/values';
|
||
|
|
|
||
|
|
|
||
|
|
export function init() {
|
||
|
|
var zone = adjust_zone(this.zone, this.long0);
|
||
|
|
if (zone === undefined) {
|
||
|
|
throw new Error('unknown utm zone');
|
||
|
|
}
|
||
|
|
this.lat0 = 0;
|
||
|
|
this.long0 = ((6 * Math.abs(zone)) - 183) * D2R;
|
||
|
|
this.x0 = 500000;
|
||
|
|
this.y0 = this.utmSouth ? 10000000 : 0;
|
||
|
|
this.k0 = 0.9996;
|
||
|
|
|
||
|
|
etmerc.init.apply(this);
|
||
|
|
this.forward = etmerc.forward;
|
||
|
|
this.inverse = etmerc.inverse;
|
||
|
|
}
|
||
|
|
|
||
|
|
export var names = ["Universal Transverse Mercator System", "utm"];
|
||
|
|
export default {
|
||
|
|
init: init,
|
||
|
|
names: names,
|
||
|
|
dependsOn: dependsOn
|
||
|
|
};
|