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29 lines
654 B
JavaScript
29 lines
654 B
JavaScript
import adjust_zone from '../common/adjust_zone';
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import etmerc from './etmerc';
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export var dependsOn = 'etmerc';
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export function init() {
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var zone = adjust_zone(this.zone, this.long0);
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if (zone === undefined) {
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throw new Error('unknown utm zone');
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}
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this.lat0 = 0;
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this.long0 = (zone + 0.5) * Math.PI / 30 - Math.PI;
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this.x0 = 500000;
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this.y0 = this.utmSouth ? 10000000 : 0;
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this.k0 = 0.9996;
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etmerc.init.apply(this);
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this.forward = etmerc.forward;
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this.inverse = etmerc.inverse;
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}
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export var names = ["Universal Transverse Mercator System", "utm"];
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export default {
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init: init,
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names: names,
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dependsOn: dependsOn
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};
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