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This commit is contained in:
Tim Schaub
2021-04-27 15:41:14 -07:00
parent 278e355795
commit 490cfabe91
599 changed files with 12374 additions and 1603 deletions
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test/browser/spec/ol/sphere.test.js Normal file
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import GeometryCollection from '../../../../src/ol/geom/GeometryCollection.js';
import LineString from '../../../../src/ol/geom/LineString.js';
import MultiLineString from '../../../../src/ol/geom/MultiLineString.js';
import MultiPoint from '../../../../src/ol/geom/MultiPoint.js';
import Point from '../../../../src/ol/geom/Point.js';
import WKT from '../../../../src/ol/format/WKT.js';
import {getArea, getDistance, getLength} from '../../../../src/ol/sphere.js';
describe('ol/sphere', function () {
describe('getDistance()', function () {
const expected = [
{
c1: [0, 0],
c2: [0, 0],
distance: 0,
},
{
c1: [0, 0],
c2: [45, 45],
distance: 6671704.814011975,
},
{
c1: [0, 0],
c2: [-45, 45],
distance: 6671704.814011975,
},
{
c1: [0, 0],
c2: [-45, -45],
distance: 6671704.814011975,
},
{
c1: [0, 0],
c2: [45, -45],
distance: 6671704.814011975,
},
{
c1: [45, 45],
c2: [45, 45],
distance: 0,
},
{
c1: [45, 45],
c2: [-45, 45],
distance: 6671704.814011975,
},
{
c1: [45, 45],
c2: [-45, -45],
distance: 13343409.628023949,
},
{
c1: [45, 45],
c2: [45, -45],
distance: 10007557.221017962,
},
{
c1: [-45, 45],
c2: [-45, 45],
distance: 0,
},
{
c1: [-45, 45],
c2: [-45, -45],
distance: 10007557.221017962,
},
{
c1: [-45, 45],
c2: [45, -45],
distance: 13343409.628023949,
},
{
c1: [-45, -45],
c2: [-45, -45],
distance: 0,
},
{
c1: [-45, -45],
c2: [45, -45],
distance: 6671704.814011975,
},
{
c1: [45, -45],
c2: [45, -45],
distance: 0,
},
];
expected.forEach(function (e, i) {
it('calculates the distance between two points: ' + i, function () {
expect(getDistance(e.c1, e.c2)).to.roughlyEqual(e.distance, 1e-6);
});
});
});
describe('getLength()', function () {
const cases = [
{
geometry: new Point([0, 0]),
length: 0,
},
{
geometry: new MultiPoint([
[0, 0],
[1, 1],
]),
length: 0,
},
{
geometry: new LineString([
[12801741.441226462, -3763310.627144653],
[14582853.293918837, -2511525.2348457114],
[15918687.18343812, -2875744.624352243],
[16697923.618991036, -4028802.0261344076],
]),
length: 4407939.124914191,
},
{
geometry: new GeometryCollection([
new LineString([
[12801741.441226462, -3763310.627144653],
[14582853.293918837, -2511525.2348457114],
[15918687.18343812, -2875744.624352243],
[16697923.618991036, -4028802.0261344076],
]),
new LineString([
[12801741.441226462, -3763310.627144653],
[14582853.293918837, -2511525.2348457114],
[15918687.18343812, -2875744.624352243],
[16697923.618991036, -4028802.0261344076],
]),
]),
length: 2 * 4407939.124914191,
},
{
geometry: new LineString([
[115, -32],
[131, -22],
[143, -25],
[150, -34],
]),
options: {projection: 'EPSG:4326'},
length: 4407939.124914191,
},
{
geometry: new MultiLineString([
[
[115, -32],
[131, -22],
[143, -25],
[150, -34],
],
[
[115, -32],
[131, -22],
[143, -25],
[150, -34],
],
]),
options: {projection: 'EPSG:4326'},
length: 2 * 4407939.124914191,
},
{
geometry: new GeometryCollection([
new LineString([
[115, -32],
[131, -22],
[143, -25],
[150, -34],
]),
new LineString([
[115, -32],
[131, -22],
[143, -25],
[150, -34],
]),
]),
options: {projection: 'EPSG:4326'},
length: 2 * 4407939.124914191,
},
];
cases.forEach(function (c, i) {
it('works for case ' + i, function () {
const c = cases[i];
const length = getLength(c.geometry, c.options);
expect(length).to.roughlyEqual(c.length, 1e-8);
});
});
});
describe('getArea()', function () {
let geometry;
const expectedArea = 145652224192.4434;
before(function (done) {
afterLoadText('spec/ol/format/wkt/illinois.wkt', function (wkt) {
try {
const format = new WKT();
geometry = format.readGeometry(wkt);
} catch (e) {
done(e);
}
done();
});
});
it('calculates the area of Ilinois', function () {
const area = getArea(geometry, {projection: 'EPSG:4326'});
expect(area).to.equal(expectedArea);
});
it('calculates the area of a projected geometry', function () {
const projected = geometry.clone().transform('EPSG:4326', 'EPSG:3857');
const area = getArea(projected);
expect(area).to.roughlyEqual(expectedArea, 1e-3);
});
it('calculates the area of a projected geometry collection', function () {
const part = geometry.clone().transform('EPSG:4326', 'EPSG:3857');
const collection = new GeometryCollection([part, part.clone()]);
const area = getArea(collection);
expect(area).to.roughlyEqual(2 * expectedArea, 1e-3);
});
});
});