288 lines
8.3 KiB
JavaScript
288 lines
8.3 KiB
JavaScript
import Geometry from '../../../../src/ol/geom/Geometry.js';
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import GeometryCollection from '../../../../src/ol/geom/GeometryCollection.js';
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import LineString from '../../../../src/ol/geom/LineString.js';
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import Point from '../../../../src/ol/geom/Point.js';
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import Polygon from '../../../../src/ol/geom/Polygon.js';
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describe('ol.geom.GeometryCollection', function () {
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const outer = [
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[0, 0],
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[0, 10],
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[10, 10],
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[10, 0],
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[0, 0],
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];
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const inner1 = [
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[1, 1],
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[2, 1],
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[2, 2],
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[1, 2],
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[1, 1],
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];
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const inner2 = [
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[8, 8],
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[9, 8],
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[9, 9],
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[8, 9],
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[8, 8],
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];
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describe('constructor', function () {
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let line, multi, point, poly;
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beforeEach(function () {
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point = new Point([10, 20]);
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line = new LineString([
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[10, 20],
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[30, 40],
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]);
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poly = new Polygon([outer, inner1, inner2]);
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multi = new GeometryCollection([point, line, poly]);
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});
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it('creates a geometry collection from an array of geometries', function () {
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expect(multi).to.be.a(GeometryCollection);
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expect(multi).to.be.a(Geometry);
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});
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it('fires a change event when one of its component changes', function (done) {
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multi.on('change', function () {
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done();
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});
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point.setCoordinates([10, 10]);
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});
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it('deregister old components', function () {
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multi.setGeometries([poly]);
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multi.on('change', function () {
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expect().fail();
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});
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point.setCoordinates([10, 10]);
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});
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it('register new components', function (done) {
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const point2 = new Point([10, 20]);
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multi.setGeometriesArray([point2]);
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multi.on('change', function () {
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done();
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});
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point2.setCoordinates([10, 10]);
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});
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});
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describe('#getGeometries', function () {
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it('returns a collection of geometries', function () {
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const point = new Point([10, 20]);
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const line = new LineString([
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[10, 20],
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[30, 40],
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]);
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const poly = new Polygon([outer, inner1, inner2]);
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const multi = new GeometryCollection([point, line, poly]);
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const geometries = multi.getGeometries();
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expect(geometries).to.be.an(Array);
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expect(geometries).to.have.length(3);
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expect(geometries[0]).to.be.a(Point);
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expect(geometries[1]).to.be.a(LineString);
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expect(geometries[2]).to.be.a(Polygon);
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});
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});
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describe('#clone()', function () {
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it('has a working clone method', function () {
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const point = new Point([10, 20]);
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const line = new LineString([
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[10, 20],
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[30, 40],
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]);
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const poly = new Polygon([outer, inner1, inner2]);
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const multi = new GeometryCollection([point, line, poly]);
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multi.setProperties({foo: 'bar', baz: null});
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const clone = multi.clone();
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expect(clone).to.not.be(multi);
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const geometries = clone.getGeometries();
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expect(geometries[0].getCoordinates()).to.eql([10, 20]);
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expect(geometries[1].getCoordinates()).to.eql([
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[10, 20],
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[30, 40],
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]);
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expect(geometries[2].getCoordinates()).to.eql([outer, inner1, inner2]);
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expect(clone.getProperties()).to.eql({foo: 'bar', baz: null});
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});
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it('does a deep clone', function () {
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const point = new Point([30, 40]);
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const originalGeometries = [point];
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const multi = new GeometryCollection(originalGeometries);
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const clone = multi.clone();
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const clonedGeometries = clone.getGeometries();
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expect(clonedGeometries).not.to.be(originalGeometries);
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expect(clonedGeometries).to.have.length(originalGeometries.length);
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expect(clonedGeometries).to.have.length(1);
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expect(clonedGeometries[0]).not.to.be(originalGeometries[0]);
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expect(clonedGeometries[0].getCoordinates()).to.eql(
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originalGeometries[0].getCoordinates()
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);
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});
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});
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describe('#getExtent()', function () {
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it('returns the bounding extent', function () {
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const point = new Point([10, 2]);
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const line = new LineString([
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[1, 20],
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[30, 40],
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]);
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const multi = new GeometryCollection([point, line]);
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const extent = multi.getExtent();
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expect(extent[0]).to.be(1);
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expect(extent[2]).to.be(30);
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expect(extent[1]).to.be(2);
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expect(extent[3]).to.be(40);
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});
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});
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describe('#intersectsExtent()', function () {
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let point, line, poly, multi;
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beforeEach(function () {
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point = new Point([5, 20]);
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line = new LineString([
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[10, 20],
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[30, 40],
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]);
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poly = new Polygon([outer, inner1, inner2]);
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multi = new GeometryCollection([point, line, poly]);
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});
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it('returns true for intersecting point', function () {
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expect(multi.intersectsExtent([5, 20, 5, 20])).to.be(true);
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});
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it('returns true for intersecting part of lineString', function () {
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expect(multi.intersectsExtent([25, 35, 30, 40])).to.be(true);
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});
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it('returns true for intersecting part of polygon', function () {
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expect(multi.intersectsExtent([0, 0, 5, 5])).to.be(true);
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});
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it('returns false for non-matching extent within own extent', function () {
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const extent = [0, 35, 5, 40];
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expect(poly.intersectsExtent(extent)).to.be(false);
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});
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});
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describe('#setGeometries', function () {
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let line, multi, point, poly;
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beforeEach(function () {
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point = new Point([10, 20]);
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line = new LineString([
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[10, 20],
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[30, 40],
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]);
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poly = new Polygon([outer, inner1, inner2]);
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multi = new GeometryCollection([point, line, poly]);
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});
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it('fires a change event', function () {
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const listener = sinon.spy();
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multi.on('change', listener);
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multi.setGeometries([point, line, poly]);
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expect(listener.calledOnce).to.be(true);
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});
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it('updates the extent', function () {
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expect(multi.getExtent()).to.eql([0, 0, 30, 40]);
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line.setCoordinates([
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[10, 20],
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[300, 400],
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]);
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expect(multi.getExtent()).to.eql([0, 0, 300, 400]);
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});
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});
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describe('#scale()', function () {
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it('scales a collection', function () {
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const geom = new GeometryCollection([
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new Point([-1, -2]),
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new LineString([
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[0, 0],
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[1, 2],
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]),
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]);
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geom.scale(10);
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const geometries = geom.getGeometries();
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expect(geometries[0].getCoordinates()).to.eql([-10, -20]);
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expect(geometries[1].getCoordinates()).to.eql([
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[0, 0],
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[10, 20],
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]);
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});
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it('accepts sx and sy', function () {
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const geom = new GeometryCollection([
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new Point([-1, -2]),
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new LineString([
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[0, 0],
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[1, 2],
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]),
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]);
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geom.scale(2, 3);
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const geometries = geom.getGeometries();
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expect(geometries[0].getCoordinates()).to.eql([-2, -6]);
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expect(geometries[1].getCoordinates()).to.eql([
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[0, 0],
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[2, 6],
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]);
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});
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it('accepts an anchor', function () {
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const geom = new GeometryCollection([
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new Point([-1, -2]),
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new LineString([
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[0, 0],
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[1, 2],
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]),
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]);
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geom.scale(10, 15, [-1, -2]);
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const geometries = geom.getGeometries();
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expect(geometries[0].getCoordinates()).to.eql([-1, -2]);
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expect(geometries[1].getCoordinates()).to.eql([
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[9, 28],
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[19, 58],
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]);
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});
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});
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describe('#transform()', function () {
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let line, multi, point;
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beforeEach(function () {
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point = new Point([10, 20]);
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line = new LineString([
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[10, 20],
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[30, 40],
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]);
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multi = new GeometryCollection([point, line]);
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});
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it('transforms all geometries', function () {
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multi.transform('EPSG:4326', 'EPSG:3857');
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const geometries = multi.getGeometries();
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expect(geometries[0]).to.be.a(Point);
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expect(geometries[1]).to.be.a(LineString);
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let coords = geometries[0].getCoordinates();
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expect(coords[0]).to.roughlyEqual(1113194.9, 1e-2);
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expect(coords[1]).to.roughlyEqual(2273030.92, 1e-2);
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coords = geometries[1].getCoordinates();
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expect(coords[0][0]).to.roughlyEqual(1113194.9, 1e-2);
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expect(coords[0][1]).to.roughlyEqual(2273030.92, 1e-2);
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expect(coords[1][0]).to.roughlyEqual(3339584.72, 1e-2);
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expect(coords[1][1]).to.roughlyEqual(4865942.27, 1e-2);
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});
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});
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});
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