// You can do this in the grunt config for each mocha task, see the `options` config
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// Start the main app logic.
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function startTests(chai, proj4, testPoints) {
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var assert = chai.assert;
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proj4.defs([
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["EPSG:102018", "+proj=gnom +lat_0=90 +lon_0=0 +x_0=6300000 +y_0=6300000 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"],
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["testmerc", "+proj=merc +lon_0=5.937 +lat_ts=45.027 +ellps=sphere +datum=none"],
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["testmerc2", "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +units=m +k=1.0 +nadgrids=@null +no_defs"]
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]);
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proj4.defs('esriOnline', 'PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0]]');
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describe('parse', function() {
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it('should parse units', function() {
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assert.equal(proj4.defs('testmerc2').units, 'm');
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});
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});
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describe('proj2proj', function() {
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it('should work transforming from one projection to another', function() {
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var sweref99tm = '+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs';
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var rt90 = '+lon_0=15.808277777799999 +lat_0=0.0 +k=1.0 +x_0=1500000.0 +y_0=0.0 +proj=tmerc +ellps=bessel +units=m +towgs84=414.1,41.3,603.1,-0.855,2.141,-7.023,0 +no_defs';
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var rslt = proj4(sweref99tm, rt90).forward([319180, 6399862]);
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assert.closeTo(rslt[0], 1271137.927154, 0.000001);
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assert.closeTo(rslt[1], 6404230.291456, 0.000001);
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});
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it('should work with a proj object', function() {
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var sweref99tm = proj4('+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs');
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var rt90 = proj4('+lon_0=15.808277777799999 +lat_0=0.0 +k=1.0 +x_0=1500000.0 +y_0=0.0 +proj=tmerc +ellps=bessel +units=m +towgs84=414.1,41.3,603.1,-0.855,2.141,-7.023,0 +no_defs');
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var rslt = proj4(sweref99tm, rt90).forward([319180, 6399862]);
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assert.closeTo(rslt[0], 1271137.927154, 0.000001);
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assert.closeTo(rslt[1], 6404230.291456, 0.000001);
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});
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});
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describe('proj4', function() {
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describe('core', function() {
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testPoints.forEach(function(testPoint) {
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describe(testPoint.code, function() {
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var xyAcc = 2,
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llAcc = 6;
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if ('acc' in testPoint) {
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if ('xy' in testPoint.acc) {
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xyAcc = testPoint.acc.xy;
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}
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if ('ll' in testPoint.acc) {
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llAcc = testPoint.acc.ll;
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}
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}
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var xyEPSLN = Math.pow(10, - 1 * xyAcc);
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var llEPSLN = Math.pow(10, - 1 * llAcc);
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describe('traditional', function() {
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it('should work with forwards', function() {
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var proj = new proj4.Proj(testPoint.code);
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var xy = proj4.transform(proj4.WGS84, proj, proj4.toPoint(testPoint.ll));
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assert.closeTo(xy.x, testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy.y, testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('should work with backwards', function() {
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var proj = new proj4.Proj(testPoint.code);
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var ll = proj4.transform(proj, proj4.WGS84, proj4.toPoint(testPoint.xy));
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assert.closeTo(ll.x, testPoint.ll[0], llEPSLN, 'lng is close');
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assert.closeTo(ll.y, testPoint.ll[1], llEPSLN, 'lat is close');
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});
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});
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describe('new method 2 param', function() {
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it('shortcut method should work with an array', function() {
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var xy = proj4(testPoint.code, testPoint.ll);
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assert.closeTo(xy[0], testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy[1], testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('shortcut method should work with an object', function() {
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var pt = {
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x: testPoint.ll[0],
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y: testPoint.ll[1]
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};
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var xy = proj4(testPoint.code, pt);
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assert.closeTo(xy.x, testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy.y, testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('shortcut method should work with a point object', function() {
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var pt = proj4.toPoint(testPoint.ll);
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var xy = proj4(testPoint.code, pt);
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assert.closeTo(xy.x, testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy.y, testPoint.xy[1], xyEPSLN, 'y is close');
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});
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});
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describe('new method 3 param', function() {
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it('shortcut method should work with an array', function() {
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var xy = proj4(proj4.WGS84, testPoint.code, testPoint.ll);
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assert.closeTo(xy[0], testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy[1], testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('shortcut method should work with an object', function() {
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var pt = {
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x: testPoint.ll[0],
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y: testPoint.ll[1]
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};
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var xy = proj4(proj4.WGS84, testPoint.code, pt);
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assert.closeTo(xy.x, testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy.y, testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('shortcut method should work with a point object', function() {
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var pt = proj4.toPoint(testPoint.ll);
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var xy = proj4(proj4.WGS84, testPoint.code, pt);
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assert.closeTo(xy.x, testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy.y, testPoint.xy[1], xyEPSLN, 'y is close');
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});
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});
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describe('new method 3 param other way', function() {
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it('shortcut method should work with an array', function() {
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var ll = proj4(testPoint.code, proj4.WGS84, testPoint.xy);
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assert.closeTo(ll[0], testPoint.ll[0], llEPSLN, 'x is close');
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assert.closeTo(ll[1], testPoint.ll[1], llEPSLN, 'y is close');
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});
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it('shortcut method should work with an object', function() {
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var pt = {
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x: testPoint.xy[0],
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y: testPoint.xy[1]
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};
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var ll = proj4(testPoint.code, proj4.WGS84, pt);
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assert.closeTo(ll.x, testPoint.ll[0], llEPSLN, 'x is close');
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assert.closeTo(ll.y, testPoint.ll[1], llEPSLN, 'y is close');
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});
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it('shortcut method should work with a point object', function() {
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var pt = proj4.toPoint(testPoint.xy);
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var ll = proj4(testPoint.code, proj4.WGS84, pt);
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assert.closeTo(ll.x, testPoint.ll[0], llEPSLN, 'x is close');
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assert.closeTo(ll.y, testPoint.ll[1], llEPSLN, 'y is close');
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});
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});
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describe('1 param', function() {
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it('forwards', function() {
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var xy = proj4(testPoint.code).forward(testPoint.ll);
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assert.closeTo(xy[0], testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy[1], testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('inverse', function() {
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var ll = proj4(testPoint.code).inverse(testPoint.xy);
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assert.closeTo(ll[0], testPoint.ll[0], llEPSLN, 'x is close');
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assert.closeTo(ll[1], testPoint.ll[1], llEPSLN, 'y is close');
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});
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});
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describe('proj object', function() {
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it('should work with a 2 element array', function() {
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var xy = proj4(new proj4.Proj(testPoint.code), testPoint.ll);
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assert.closeTo(xy[0], testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy[1], testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('should work on element', function() {
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var xy = proj4(new proj4.Proj(testPoint.code)).forward(testPoint.ll);
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assert.closeTo(xy[0], testPoint.xy[0], xyEPSLN, 'x is close');
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assert.closeTo(xy[1], testPoint.xy[1], xyEPSLN, 'y is close');
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});
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it('should work 3 element ponit object', function() {
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var pt = proj4.toPoint(testPoint.xy);
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var ll = proj4(new proj4.Proj(testPoint.code), proj4.WGS84, pt);
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assert.closeTo(ll.x, testPoint.ll[0], llEPSLN, 'x is close');
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assert.closeTo(ll.y, testPoint.ll[1], llEPSLN, 'y is close');
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});
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});
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});
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});
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});
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describe('defs', function() {
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assert.equal(proj4.defs('testmerc'), proj4.defs['testmerc']);
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proj4.defs('foo', '+proj=merc +lon_0=5.937 +lat_ts=45.027 +ellps=sphere +datum=none');
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assert.typeOf(proj4.defs['foo'], 'object');
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proj4.defs('urn:x-ogc:def:crs:EPSG:4326', proj4.defs('EPSG:4326'));
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assert.strictEqual(proj4.defs['urn:x-ogc:def:crs:EPSG:4326'], proj4.defs['EPSG:4326']);
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describe('wkt', function() {
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it('should provide the correct conversion factor for WKT GEOGCS projections', function() {
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proj4.defs('EPSG:4269', 'GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]]');
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assert.equal(proj4.defs['EPSG:4269'].to_meter, 6378137*0.01745329251994328);
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proj4.defs('EPSG:4279', 'GEOGCS["OS(SN)80",DATUM["OS_SN_1980",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],AUTHORITY["EPSG","6279"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4279"]]');
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assert.equal(proj4.defs['EPSG:4279'].to_meter, 6377563.396*0.01745329251994328);
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});
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});
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});
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describe('errors', function() {
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it('should throw an error for an unknown ref', function() {
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assert.throws(function() {
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new proj4.Proj('fake one');
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}, 'fake one', 'should work');
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});
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});
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describe('utility', function() {
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it('should have MGRS available in the proj4.util namespace', function() {
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assert.typeOf(proj4.mgrs, "object", "MGRS available in the proj4.util namespace");
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});
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it('should have fromMGRS method added to proj4.Point prototype', function() {
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assert.typeOf(proj4.Point.fromMGRS, "function", "fromMGRS method added to proj4.Point prototype");
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});
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it('should have toMGRS method added to proj4.Point prototype', function() {
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assert.typeOf(proj4.Point.prototype.toMGRS, "function", "toMGRS method added to proj4.Point prototype");
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});
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describe('First MGRS set', function() {
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var mgrs = "33UXP04";
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var point = proj4.Point.fromMGRS(mgrs);
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it('Longitude of point from MGRS correct.', function() {
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assert.equal(point.x.toPrecision(7), "16.41450", "Longitude of point from MGRS correct.");
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});
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it('Latitude of point from MGRS correct.', function() {
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assert.equal(point.y.toPrecision(7), "48.24949", "Latitude of point from MGRS correct.");
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});
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it('MGRS reference with highest accuracy correct.', function() {
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assert.equal(point.toMGRS(), "33UXP0500444998", "MGRS reference with highest accuracy correct.");
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});
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it('MGRS reference with 1-digit accuracy correct.', function() {
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assert.equal(point.toMGRS(1), mgrs, "MGRS reference with 1-digit accuracy correct.");
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});
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});
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describe('Second MGRS set', function() {
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var mgrs = "24XWT783908"; // near UTM zone border, so there are two ways to reference this
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var point = proj4.Point.fromMGRS(mgrs);
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it("Longitude of point from MGRS correct.", function() {
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assert.equal(point.x.toPrecision(7), "-32.66433", "Longitude of point from MGRS correct.");
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});
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it("Latitude of point from MGRS correct.", function() {
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assert.equal(point.y.toPrecision(7), "83.62778", "Latitude of point from MGRS correct.");
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});
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it("MGRS reference with 3-digit accuracy correct.", function() {
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assert.equal(point.toMGRS(3), "25XEN041865", "MGRS reference with 3-digit accuracy correct.");
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});
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});
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describe('Defs and Datum definition', function() {
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proj4.defs("EPSG:5514", "+proj=krovak +lat_0=49.5 +lon_0=24.83333333333333 +alpha=30.28813972222222 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +pm=greenwich +units=m +no_defs +towgs84=570.8,85.7,462.8,4.998,1.587,5.261,3.56");
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var point = proj4.transform(proj4.Proj("WGS84"), proj4.Proj("EPSG:5514"),
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proj4.toPoint([12.806988, 49.452262]));
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it("Longitude of point from WGS84 correct.", function() {
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assert.equal(point.x.toPrecision(8), "-868208.61", "Longitude of point from WGS84 correct.");
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});
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it("Latitude of point from WGS84 correct.", function() {
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assert.equal(point.y.toPrecision(9), "-1095793.64", "Latitude of point from WGS84 correct.");
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});
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var point2 = proj4.transform(proj4.Proj("WGS84"), proj4.Proj("EPSG:5514"),
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proj4.toPoint([12.806988, 49.452262]));
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it("Longitude of point from WGS84 with second call for EPSG:5514 correct.", function() {
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assert.equal(point2.x.toPrecision(8), "-868208.61", "Longitude of point from WGS84 correct.");
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});
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it("Latitude of point from WGS84 with second call for EPSG:5514 correct.", function() {
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assert.equal(point2.y.toPrecision(9), "-1095793.64", "Latitude of point from WGS84 correct.");
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});
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});
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});
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});
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}
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if(typeof process !== 'undefined'&&process.toString() === '[object process]'){
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(function(){
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startTests(require('chai'), require('../lib'), require('./testData'));
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})();
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}
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