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Named exports from ol/proj

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This commit is contained in:
Tim Schaub
2017-12-13 22:14:27 -07:00
committed by Andreas Hocevar
parent fab77e8d37
commit 6f72ffe498
127 changed files with 853 additions and 882 deletions
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147
test/spec/ol/proj.test.js
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@@ -1,4 +1,17 @@
import _ol_proj_ from '../../../src/ol/proj.js';
import {
addCommon,
setProj4,
clearAllProjections,
equivalent,
get as getProjection,
transform,
transformExtent,
fromLonLat,
toLonLat,
getTransform,
getPointResolution,
getTransformFromProjections
} from '../../../src/ol/proj.js';
import _ol_proj_EPSG3857_ from '../../../src/ol/proj/EPSG3857.js';
import _ol_proj_EPSG4326_ from '../../../src/ol/proj/EPSG4326.js';
import _ol_proj_Projection_ from '../../../src/ol/proj/Projection.js';
@@ -7,8 +20,8 @@ import _ol_proj_Projection_ from '../../../src/ol/proj/Projection.js';
describe('ol.proj', function() {
afterEach(function() {
_ol_proj_.clearAllProjections();
_ol_proj_.addCommon();
clearAllProjections();
addCommon();
});
describe('toLonLat()', function() {
@@ -28,7 +41,7 @@ describe('ol.proj', function() {
cases.forEach(function(c) {
it('works for ' + c.from.join(', '), function() {
var lonLat = _ol_proj_.toLonLat(c.from);
var lonLat = toLonLat(c.from);
expect(lonLat[0]).to.roughlyEqual(c.to[0], 1e-9);
expect(lonLat[1]).to.roughlyEqual(c.to[1], 1e-9);
});
@@ -38,10 +51,10 @@ describe('ol.proj', function() {
describe('projection equivalence', function() {
function _testAllEquivalent(codes) {
var projections = codes.map(_ol_proj_.get);
var projections = codes.map(getProjection);
projections.forEach(function(source) {
projections.forEach(function(destination) {
expect(_ol_proj_.equivalent(source, destination)).to.be.ok();
expect(equivalent(source, destination)).to.be.ok();
});
});
}
@@ -66,7 +79,7 @@ describe('ol.proj', function() {
code: code
});
expect(_ol_proj_.equivalent(source, destination)).to.be.ok();
expect(equivalent(source, destination)).to.be.ok();
});
it('gives that default 3857 is equivalent to self', function() {
@@ -96,7 +109,7 @@ describe('ol.proj', function() {
code: 'EPSG:3857',
units: 'tile-pixels'
});
expect(_ol_proj_.equivalent(proj1, proj2)).to.not.be.ok();
expect(equivalent(proj1, proj2)).to.not.be.ok();
});
});
@@ -104,10 +117,10 @@ describe('ol.proj', function() {
describe('identify transform', function() {
it('returns a new object, with same coord values', function() {
var epsg4326 = _ol_proj_.get('EPSG:4326');
var epsg4326 = getProjection('EPSG:4326');
var uniqueObject = {};
var sourcePoint = [uniqueObject, uniqueObject];
var destinationPoint = _ol_proj_.transform(
var destinationPoint = transform(
sourcePoint, epsg4326, epsg4326);
expect(sourcePoint === destinationPoint).to.not.be();
expect(destinationPoint[0] === sourcePoint[0]).to.be.ok();
@@ -118,7 +131,7 @@ describe('ol.proj', function() {
describe('transform 0,0 from 4326 to 3857', function() {
it('returns expected value', function() {
var point = _ol_proj_.transform([0, 0], 'EPSG:4326', 'EPSG:3857');
var point = transform([0, 0], 'EPSG:4326', 'EPSG:3857');
expect(point).not.to.be(undefined);
expect(point).not.to.be(null);
expect(point[1]).to.roughlyEqual(0, 1e-9);
@@ -128,7 +141,7 @@ describe('ol.proj', function() {
describe('transform 0,0 from 3857 to 4326', function() {
it('returns expected value', function() {
var point = _ol_proj_.transform([0, 0], 'EPSG:3857', 'EPSG:4326');
var point = transform([0, 0], 'EPSG:3857', 'EPSG:4326');
expect(point).not.to.be(undefined);
expect(point).not.to.be(null);
expect(point[0]).to.eql(0);
@@ -140,7 +153,7 @@ describe('ol.proj', function() {
// http://alastaira.wordpress.com/2011/01/23/the-google-maps-bing-maps-spherical-mercator-projection/
it('returns expected value using ol.proj.transform', function() {
var point = _ol_proj_.transform(
var point = transform(
[-5.625, 52.4827802220782], 'EPSG:4326', 'EPSG:900913');
expect(point).not.to.be(undefined);
expect(point).not.to.be(null);
@@ -149,7 +162,7 @@ describe('ol.proj', function() {
});
it('returns expected value using ol.proj.fromLonLat', function() {
var point = _ol_proj_.fromLonLat([-5.625, 52.4827802220782]);
var point = fromLonLat([-5.625, 52.4827802220782]);
expect(point).not.to.be(undefined);
expect(point).not.to.be(null);
expect(point[0]).to.roughlyEqual(-626172.13571216376, 1e-9);
@@ -161,7 +174,7 @@ describe('ol.proj', function() {
// http://alastaira.wordpress.com/2011/01/23/the-google-maps-bing-maps-spherical-mercator-projection/
it('returns expected value using ol.proj.transform', function() {
var point = _ol_proj_.transform([-626172.13571216376, 6887893.4928337997],
var point = transform([-626172.13571216376, 6887893.4928337997],
'EPSG:900913', 'EPSG:4326');
expect(point).not.to.be(undefined);
expect(point).not.to.be(null);
@@ -170,7 +183,7 @@ describe('ol.proj', function() {
});
it('returns expected value using ol.proj.toLonLat', function() {
var point = _ol_proj_.toLonLat([-626172.13571216376, 6887893.4928337997]);
var point = toLonLat([-626172.13571216376, 6887893.4928337997]);
expect(point).not.to.be(undefined);
expect(point).not.to.be(null);
expect(point[0]).to.roughlyEqual(-5.625, 1e-9);
@@ -222,7 +235,7 @@ describe('ol.proj', function() {
it('transforms an extent given projection identifiers', function() {
var sourceExtent = [-15, -30, 45, 60];
var destinationExtent = _ol_proj_.transformExtent(
var destinationExtent = transformExtent(
sourceExtent, 'EPSG:4326', 'EPSG:3857');
expect(destinationExtent).not.to.be(undefined);
expect(destinationExtent).not.to.be(null);
@@ -237,27 +250,27 @@ describe('ol.proj', function() {
describe('getPointResolution()', function() {
it('returns the correct point resolution for EPSG:4326', function() {
var pointResolution = _ol_proj_.getPointResolution('EPSG:4326', 1, [0, 0]);
var pointResolution = getPointResolution('EPSG:4326', 1, [0, 0]);
expect (pointResolution).to.be(1);
pointResolution = _ol_proj_.getPointResolution('EPSG:4326', 1, [0, 52]);
pointResolution = getPointResolution('EPSG:4326', 1, [0, 52]);
expect (pointResolution).to.be(1);
});
it('returns the correct point resolution for EPSG:4326 with custom units', function() {
var pointResolution = _ol_proj_.getPointResolution('EPSG:4326', 1, [0, 0], 'm');
var pointResolution = getPointResolution('EPSG:4326', 1, [0, 0], 'm');
expect(pointResolution).to.roughlyEqual(111195.0802335329, 1e-5);
pointResolution = _ol_proj_.getPointResolution('EPSG:4326', 1, [0, 52], 'm');
pointResolution = getPointResolution('EPSG:4326', 1, [0, 52], 'm');
expect(pointResolution).to.roughlyEqual(89826.53390979706, 1e-5);
});
it('returns the correct point resolution for EPSG:3857', function() {
var pointResolution = _ol_proj_.getPointResolution('EPSG:3857', 1, [0, 0]);
var pointResolution = getPointResolution('EPSG:3857', 1, [0, 0]);
expect(pointResolution).to.be(1);
pointResolution = _ol_proj_.getPointResolution('EPSG:3857', 1, _ol_proj_.fromLonLat([0, 52]));
pointResolution = getPointResolution('EPSG:3857', 1, fromLonLat([0, 52]));
expect(pointResolution).to.roughlyEqual(0.615661, 1e-5);
});
it('returns the correct point resolution for EPSG:3857 with custom units', function() {
var pointResolution = _ol_proj_.getPointResolution('EPSG:3857', 1, [0, 0], 'degrees');
var pointResolution = getPointResolution('EPSG:3857', 1, [0, 0], 'degrees');
expect(pointResolution).to.be(1);
pointResolution = _ol_proj_.getPointResolution('EPSG:4326', 1, _ol_proj_.fromLonLat([0, 52]), 'degrees');
pointResolution = getPointResolution('EPSG:4326', 1, fromLonLat([0, 52]), 'degrees');
expect(pointResolution).to.be(1);
});
});
@@ -269,7 +282,7 @@ describe('ol.proj', function() {
afterEach(function() {
delete proj4.defs['EPSG:21781'];
window.proj4 = proj4;
_ol_proj_.setProj4(window.proj4);
setProj4(window.proj4);
});
it('creates ol.proj.Projection instance from EPSG:21781', function() {
@@ -277,7 +290,7 @@ describe('ol.proj', function() {
'+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 ' +
'+k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel ' +
'+towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs');
var proj = _ol_proj_.get('EPSG:21781');
var proj = getProjection('EPSG:21781');
expect(proj.getCode()).to.eql('EPSG:21781');
expect(proj.getUnits()).to.eql('m');
expect(proj.getMetersPerUnit()).to.eql(1);
@@ -287,12 +300,12 @@ describe('ol.proj', function() {
var proj4 = window.proj4;
var proj4new = proj4;
delete window.proj4;
_ol_proj_.setProj4(proj4new);
setProj4(proj4new);
proj4new.defs('EPSG:21781',
'+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 ' +
'+k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel ' +
'+towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs');
var proj = _ol_proj_.get('EPSG:21781');
var proj = getProjection('EPSG:21781');
expect(proj.getCode()).to.eql('EPSG:21781');
expect(proj.getUnits()).to.eql('m');
expect(proj.getMetersPerUnit()).to.eql(1);
@@ -303,7 +316,7 @@ describe('ol.proj', function() {
'+proj=tmerc +lat_0=40.5 +lon_0=-110.0833333333333 +k=0.9999375 ' +
'+x_0=800000.0000101599 +y_0=99999.99998983997 +ellps=GRS80 ' +
'+towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs');
var proj = _ol_proj_.get('EPSG:3739');
var proj = getProjection('EPSG:3739');
expect(proj.getCode()).to.eql('EPSG:3739');
expect(proj.getUnits()).to.eql('us-ft');
expect(proj.getMetersPerUnit()).to.eql(1200 / 3937);
@@ -312,7 +325,7 @@ describe('ol.proj', function() {
});
it('allows Proj4js projections to be used transparently', function() {
var point = _ol_proj_.transform(
var point = transform(
[-626172.13571216376, 6887893.4928337997], 'GOOGLE', 'WGS84');
expect(point[0]).to.roughlyEqual(-5.625, 1e-9);
expect(point[1]).to.roughlyEqual(52.4827802220782, 1e-9);
@@ -323,7 +336,7 @@ describe('ol.proj', function() {
'+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 ' +
'+k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel ' +
'+towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs');
var point = _ol_proj_.transform([7.439583333333333, 46.95240555555556],
var point = transform([7.439583333333333, 46.95240555555556],
'EPSG:4326', 'EPSG:21781');
expect(point[0]).to.roughlyEqual(600072.300, 1);
expect(point[1]).to.roughlyEqual(200146.976, 1);
@@ -335,10 +348,10 @@ describe('ol.proj', function() {
'+k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel ' +
'+towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs');
var lonLat = [7.439583333333333, 46.95240555555556];
var point = _ol_proj_.fromLonLat(lonLat, 'EPSG:21781');
var point = fromLonLat(lonLat, 'EPSG:21781');
expect(point[0]).to.roughlyEqual(600072.300, 1);
expect(point[1]).to.roughlyEqual(200146.976, 1);
point = _ol_proj_.toLonLat(point, 'EPSG:21781');
point = toLonLat(point, 'EPSG:21781');
expect(point[0]).to.roughlyEqual(lonLat[0], 1);
expect(point[1]).to.roughlyEqual(lonLat[1], 1);
});
@@ -351,50 +364,50 @@ describe('ol.proj', function() {
var code = 'urn:ogc:def:crs:EPSG:21781';
var srsCode = 'EPSG:21781';
proj4.defs(code, proj4.defs(srsCode));
var proj = _ol_proj_.get(code);
var proj2 = _ol_proj_.get(srsCode);
expect(_ol_proj_.equivalent(proj2, proj)).to.be(true);
var proj = getProjection(code);
var proj2 = getProjection(srsCode);
expect(equivalent(proj2, proj)).to.be(true);
delete proj4.defs[code];
});
it('numerically estimates point scale at the equator', function() {
var googleProjection = _ol_proj_.get('GOOGLE');
expect(_ol_proj_.getPointResolution(googleProjection, 1, [0, 0])).
var googleProjection = getProjection('GOOGLE');
expect(getPointResolution(googleProjection, 1, [0, 0])).
to.roughlyEqual(1, 1e-1);
});
it('numerically estimates point scale at various latitudes', function() {
var epsg3857Projection = _ol_proj_.get('EPSG:3857');
var googleProjection = _ol_proj_.get('GOOGLE');
var epsg3857Projection = getProjection('EPSG:3857');
var googleProjection = getProjection('GOOGLE');
var point, y;
for (y = -20; y <= 20; ++y) {
point = [0, 1000000 * y];
expect(_ol_proj_.getPointResolution(googleProjection, 1, point)).to.roughlyEqual(
_ol_proj_.getPointResolution(epsg3857Projection, 1, point), 1e-1);
expect(getPointResolution(googleProjection, 1, point)).to.roughlyEqual(
getPointResolution(epsg3857Projection, 1, point), 1e-1);
}
});
it('numerically estimates point scale at various points', function() {
var epsg3857Projection = _ol_proj_.get('EPSG:3857');
var googleProjection = _ol_proj_.get('GOOGLE');
var epsg3857Projection = getProjection('EPSG:3857');
var googleProjection = getProjection('GOOGLE');
var point, x, y;
for (x = -20; x <= 20; x += 2) {
for (y = -20; y <= 20; y += 2) {
point = [1000000 * x, 1000000 * y];
expect(_ol_proj_.getPointResolution(googleProjection, 1, point)).to.roughlyEqual(
_ol_proj_.getPointResolution(epsg3857Projection, 1, point), 1e-1);
expect(getPointResolution(googleProjection, 1, point)).to.roughlyEqual(
getPointResolution(epsg3857Projection, 1, point), 1e-1);
}
}
});
it('does not overwrite existing projections in the registry', function() {
var epsg4326 = _ol_proj_.get('EPSG:4326');
var epsg4326 = getProjection('EPSG:4326');
new _ol_proj_Projection_({
code: 'EPSG:4326',
units: 'degrees',
extent: [-45, -45, 45, 45]
});
expect(_ol_proj_.get('EPSG:4326')).to.equal(epsg4326);
expect(getProjection('EPSG:4326')).to.equal(epsg4326);
});
});
@@ -402,8 +415,8 @@ describe('ol.proj', function() {
describe('ol.proj.getTransformFromProjections()', function() {
it('returns a transform function', function() {
var transform = _ol_proj_.getTransformFromProjections(_ol_proj_.get('GOOGLE'),
_ol_proj_.get('EPSG:4326'));
var transform = getTransformFromProjections(getProjection('GOOGLE'),
getProjection('EPSG:4326'));
expect(typeof transform).to.be('function');
var output = transform([-12000000, 5000000]);
@@ -413,8 +426,8 @@ describe('ol.proj', function() {
});
it('works for longer arrays', function() {
var transform = _ol_proj_.getTransformFromProjections(_ol_proj_.get('GOOGLE'),
_ol_proj_.get('EPSG:4326'));
var transform = getTransformFromProjections(getProjection('GOOGLE'),
getProjection('EPSG:4326'));
expect(typeof transform).to.be('function');
var output = transform([-12000000, 5000000, -12000000, 5000000]);
@@ -430,12 +443,12 @@ describe('ol.proj', function() {
describe('ol.proj.getTransform()', function() {
it('returns a function', function() {
var transform = _ol_proj_.getTransform('GOOGLE', 'EPSG:4326');
var transform = getTransform('GOOGLE', 'EPSG:4326');
expect(typeof transform).to.be('function');
});
it('returns a transform function', function() {
var transform = _ol_proj_.getTransform('GOOGLE', 'EPSG:4326');
var transform = getTransform('GOOGLE', 'EPSG:4326');
expect(typeof transform).to.be('function');
var output = transform([-626172.13571216376, 6887893.4928337997]);
@@ -446,7 +459,7 @@ describe('ol.proj', function() {
});
it('works for longer arrays of coordinate values', function() {
var transform = _ol_proj_.getTransform('GOOGLE', 'EPSG:4326');
var transform = getTransform('GOOGLE', 'EPSG:4326');
expect(typeof transform).to.be('function');
var output = transform([
@@ -464,7 +477,7 @@ describe('ol.proj', function() {
});
it('accepts an optional destination array', function() {
var transform = _ol_proj_.getTransform('EPSG:3857', 'EPSG:4326');
var transform = getTransform('EPSG:3857', 'EPSG:4326');
var input = [-12000000, 5000000];
var output = [];
@@ -478,7 +491,7 @@ describe('ol.proj', function() {
});
it('accepts a dimension', function() {
var transform = _ol_proj_.getTransform('GOOGLE', 'EPSG:4326');
var transform = getTransform('GOOGLE', 'EPSG:4326');
expect(typeof transform).to.be('function');
var dimension = 3;
@@ -503,14 +516,14 @@ describe('ol.proj', function() {
describe('ol.proj.transform()', function() {
it('transforms a 2d coordinate', function() {
var got = _ol_proj_.transform([-10, -20], 'EPSG:4326', 'EPSG:3857');
var got = transform([-10, -20], 'EPSG:4326', 'EPSG:3857');
expect(got).to.have.length(2);
expect(got[0]).to.roughlyEqual(-1113194.9079327357, 1e-3);
expect(got[1]).to.roughlyEqual(-2273030.92698769, 1e-3);
});
it('transforms a 3d coordinate', function() {
var got = _ol_proj_.transform([-10, -20, 3], 'EPSG:4326', 'EPSG:3857');
var got = transform([-10, -20, 3], 'EPSG:4326', 'EPSG:3857');
expect(got).to.have.length(3);
expect(got[0]).to.roughlyEqual(-1113194.9079327357, 1e-3);
expect(got[1]).to.roughlyEqual(-2273030.92698769, 1e-3);
@@ -518,7 +531,7 @@ describe('ol.proj', function() {
});
it('transforms a 4d coordinate', function() {
var got = _ol_proj_.transform([-10, -20, 3, 4], 'EPSG:4326', 'EPSG:3857');
var got = transform([-10, -20, 3, 4], 'EPSG:4326', 'EPSG:3857');
expect(got).to.have.length(4);
expect(got[0]).to.roughlyEqual(-1113194.9079327357, 1e-3);
expect(got[1]).to.roughlyEqual(-2273030.92698769, 1e-3);
@@ -532,7 +545,7 @@ describe('ol.proj', function() {
'+k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel ' +
'+towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs');
var got = _ol_proj_.transform([-111, 45.5, 123], 'EPSG:4326', 'custom');
var got = transform([-111, 45.5, 123], 'EPSG:4326', 'custom');
expect(got).to.have.length(3);
expect(got[0]).to.roughlyEqual(-6601512.194209638, 1);
expect(got[1]).to.roughlyEqual(6145843.802742112, 1);
@@ -579,26 +592,26 @@ describe('ol.proj', function() {
});
it('returns value in meters', function() {
var epsg4326 = _ol_proj_.get('EPSG:4326');
var epsg4326 = getProjection('EPSG:4326');
expect(epsg4326.getMetersPerUnit()).to.eql(
_ol_proj_EPSG4326_.METERS_PER_UNIT);
});
it('works for proj4js projections without units', function() {
var epsg26782 = _ol_proj_.get('EPSG:26782');
var epsg26782 = getProjection('EPSG:26782');
expect(epsg26782.getMetersPerUnit()).to.eql(0.3048006096012192);
});
it('works for proj4js projections with units other than m', function() {
var epsg3739 = _ol_proj_.get('EPSG:3739');
var epsg3739 = getProjection('EPSG:3739');
expect(epsg3739.getMetersPerUnit()).to.eql(1200 / 3937);
});
it('works for proj4js OGC WKT GEOGCS projections', function() {
var epsg4269 = _ol_proj_.get('EPSG:4269');
var epsg4269 = getProjection('EPSG:4269');
expect(epsg4269.getMetersPerUnit()).to.eql(
6378137 * 0.01745329251994328);
var epsg4279 = _ol_proj_.get('EPSG:4279');
var epsg4279 = getProjection('EPSG:4279');
expect(epsg4279.getMetersPerUnit()).to.eql(
6377563.396 * 0.01745329251994328);
});