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Add ol.proj.EPSG2056 and factor out common code

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This commit is contained in:
Tom Payne
2013-06-11 15:50:00 +02:00
parent c02e2530f1
commit 0968e2b00b
6 changed files with 380 additions and 195 deletions
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112
test/spec/ol/proj/chprojection.test.js Normal file
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goog.provide('ol.test.proj.CH');
goog.provide('ol.test.proj.EPSG2056');
goog.provide('ol.test.proj.EPSG21781');
describe('ol.proj.CH', function() {
beforeEach(function() {
ol.proj.CH.add();
});
it('can transform from EPSG:2056 to EPSG:21781', function() {
var output = ol.proj.transform(
[2660389.515487, 1185731.630396], 'EPSG:2056', 'EPSG:21781');
expect(output).to.be.an(Array);
expect(output).to.have.length(2);
expect(output[0]).to.roughlyEqual(660389.515487, 1e-9);
expect(output[1]).to.roughlyEqual(185731.630396, 1e-9);
});
it('can transform from EPSG:21781 to EPSG:2056', function() {
var output = ol.proj.transform(
[660389.515487, 185731.630396], 'EPSG:21781', 'EPSG:2056');
expect(output).to.be.an(Array);
expect(output).to.have.length(2);
expect(output[0]).to.roughlyEqual(2660389.515487, 1e-10);
expect(output[1]).to.roughlyEqual(1185731.630396, 1e-10);
});
});
describe('ol.proj.EPSG2056', function() {
var epsg2056;
beforeEach(function() {
ol.proj.EPSG2056.add();
epsg2056 = ol.proj.get('EPSG:2056');
expect(epsg2056).to.be.an(ol.Projection);
});
it('transforms from EPSG:2056 to EPSG:4326', function() {
var wgs84 = ol.proj.transform(
[2660389.515487, 1185731.630396], 'EPSG:2056', 'EPSG:4326');
expect(wgs84).to.be.an(Array);
expect(wgs84).to.have.length(2);
expect(wgs84[0]).to.roughlyEqual(8.23, 1e-3);
expect(wgs84[1]).to.roughlyEqual(46.82, 1e-3);
});
it('transforms from EPSG:4326 to EPSG:2056', function() {
var ch1903 = ol.proj.transform([8.23, 46.82], 'EPSG:4326', 'EPSG:2056');
expect(ch1903).to.be.an(Array);
expect(ch1903).to.have.length(2);
expect(ch1903[0]).to.roughlyEqual(2660389.515487, 1);
expect(ch1903[1]).to.roughlyEqual(1185731.630396, 1);
});
});
describe('ol.proj.EPSG21781', function() {
var epsg21781;
beforeEach(function() {
ol.proj.EPSG21781.add();
epsg21781 = ol.proj.get('EPSG:21781');
expect(epsg21781).to.be.an(ol.Projection);
});
it('does not lose too much accuracy when round-tripping', function() {
var extent = epsg21781.getExtent();
var fromEPSG4326 = ol.proj.getTransform('EPSG:4326', 'EPSG:21781');
var toEPSG4326 = ol.proj.getTransform('EPSG:21781', 'EPSG:4326');
var roundTripped, x, y;
for (x = extent[0]; x < extent[1]; x += 50000) {
for (y = extent[2]; y < extent[3]; y += 50000) {
roundTripped = fromEPSG4326(toEPSG4326([x, y]));
expect(roundTripped).to.be.an(Array);
expect(roundTripped).to.have.length(2);
expect(roundTripped[0]).to.roughlyEqual(x, 1e1);
expect(roundTripped[1]).to.roughlyEqual(y, 1e1);
}
}
});
it('transforms from EPSG:21781 to EPSG:4326', function() {
var wgs84 = ol.proj.transform(
[660389.515487, 185731.630396], 'EPSG:21781', 'EPSG:4326');
expect(wgs84).to.be.an(Array);
expect(wgs84).to.have.length(2);
expect(wgs84[0]).to.roughlyEqual(8.23, 1e-3);
expect(wgs84[1]).to.roughlyEqual(46.82, 1e-3);
});
it('transforms from EPSG:4326 to EPSG:21781', function() {
var ch1903 = ol.proj.transform([8.23, 46.82], 'EPSG:4326', 'EPSG:21781');
expect(ch1903).to.be.an(Array);
expect(ch1903).to.have.length(2);
expect(ch1903[0]).to.roughlyEqual(660389.515487, 1);
expect(ch1903[1]).to.roughlyEqual(185731.630396, 1);
});
});
goog.require('ol.Projection');
goog.require('ol.proj');
goog.require('ol.proj.CH');
goog.require('ol.proj.EPSG2056');
goog.require('ol.proj.EPSG21781');

50
test/spec/ol/proj/epsg21781projection.test.js
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goog.provide('ol.test.proj.EPSG21781');
describe('ol.proj.EPSG21781', function() {
var epsg21781;
beforeEach(function() {
ol.proj.EPSG21781.add();
epsg21781 = ol.proj.get('EPSG:21781');
expect(epsg21781).to.be.an(ol.Projection);
});
it('does not lose too much accuracy when round-tripping', function() {
var extent = epsg21781.getExtent();
var roundTripped, x, y;
for (x = extent[0]; x < extent[1]; x += 50000) {
for (y = extent[2]; y < extent[3]; y += 50000) {
roundTripped = ol.proj.EPSG21781.fromEPSG4326(
ol.proj.EPSG21781.toEPSG4326([x, y]));
expect(roundTripped).to.be.an(Array);
expect(roundTripped).to.have.length(2);
expect(roundTripped[0]).to.roughlyEqual(x, 1e1);
expect(roundTripped[1]).to.roughlyEqual(y, 1e1);
}
}
});
it('transforms from EPSG:21781 to EPSG:4326', function() {
var wgs84 = ol.proj.transform(
[660389.515487, 185731.630396], 'EPSG:21781', 'EPSG:4326');
expect(wgs84).to.be.an(Array);
expect(wgs84).to.have.length(2);
expect(wgs84[0]).to.roughlyEqual(8.23, 1e-3);
expect(wgs84[1]).to.roughlyEqual(46.82, 1e-3);
});
it('transforms from EPSG:4326 to EPSG:21781', function() {
var ch1903 = ol.proj.transform([8.23, 46.82], 'EPSG:4326', 'EPSG:21781');
expect(ch1903).to.be.an(Array);
expect(ch1903).to.have.length(2);
expect(ch1903[0]).to.roughlyEqual(660389.515487, 1);
expect(ch1903[1]).to.roughlyEqual(185731.630396, 1);
});
});
goog.require('ol.Projection');
goog.require('ol.proj');
goog.require('ol.proj.EPSG21781');