/*******************************************************************************
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NAME TRANSVERSE MERCATOR
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PURPOSE: Transforms input longitude and latitude to Easting and
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Northing for the Transverse Mercator projection. The
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longitude and latitude must be in radians. The Easting
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and Northing values will be returned in meters.
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ALGORITHM REFERENCES
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1. Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
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Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
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State Government Printing Office, Washington D.C., 1987.
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2. Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
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U.S. Geological Survey Professional Paper 1453 , United State Government
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Printing Office, Washington D.C., 1989.
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*******************************************************************************/
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/**
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Initialize Transverse Mercator projection
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*/
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Proj4js.Proj.utm = {
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dependsOn : 'tmerc',
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init : function() {
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if (!this.zone) {
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Proj4js.reportError("utm:init: zone must be specified for UTM");
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return;
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}
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this.lat0 = 0.0;
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this.long0 = ((6 * Math.abs(this.zone)) - 183) * Proj4js.common.D2R;
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this.x0 = 500000.0;
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this.y0 = this.utmSouth ? 10000000.0 : 0.0;
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this.k0 = 0.9996;
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Proj4js.Proj['tmerc'].init.apply(this);
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this.forward = Proj4js.Proj['tmerc'].forward;
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this.inverse = Proj4js.Proj['tmerc'].inverse;
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}
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};
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