mirror of
https://github.com/Leaflet/Leaflet.git
synced 2025-07-23 00:34:55 +00:00
4e6ed4c4bc
Signed-off-by: Jon Koops <jonkoops@gmail.com> Co-authored-by: Vladimir Agafonkin <agafonkin@gmail.com>
954 lines
26 KiB
JavaScript
954 lines
26 KiB
JavaScript
import {expect} from 'chai';
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import {Circle, CircleMarker, FeatureGroup, GeoJSON, LatLng, LayerGroup, Marker, Polygon, Polyline, TileLayer} from 'leaflet';
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describe('GeoJSON', () => {
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describe('addData', () => {
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const geojson = {
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type: 'Feature',
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properties: {},
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geometry: {
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type: 'Point',
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coordinates: [20, 10, 5]
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}
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}, geojsonEmpty = {
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type: 'Feature',
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properties: {},
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geometry: null
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};
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it('sets feature property on member layers', () => {
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const layer = new GeoJSON();
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layer.addData(geojson);
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expect(layer.getLayers()[0].feature).to.eql(geojson);
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});
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it('normalizes a geometry to a Feature', () => {
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const layer = new GeoJSON();
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layer.addData(geojson.geometry);
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expect(layer.getLayers()[0].feature).to.eql(geojson);
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});
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it('accepts geojson with null geometry', () => {
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const layer = new GeoJSON();
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layer.addData(geojsonEmpty);
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expect(layer.getLayers().length).to.eql(0);
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});
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it('makes default marker inherit group options if explicitly requested', () => {
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// Check first that it does not inherit group options by default
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const options = {
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customOption: 'My Custom Option'
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};
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const layer = new GeoJSON(null, options);
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layer.addData(geojson);
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expect(layer.getLayers()[0].options.customOption).to.equal(undefined);
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// Now make it inherit group options
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layer.options.markersInheritOptions = true;
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layer.addData(geojson);
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expect(layer.getLayers()[1].options.customOption).to.eql(options.customOption);
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});
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});
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describe('resetStyle', () => {
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it('should reset init options', () => {
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const feature = {
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type: 'Feature',
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geometry: {
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type: 'LineString',
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coordinates:[[-2.35, 51.38], [-2.38, 51.38]]
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}
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};
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const geojson = new GeoJSON(feature, {weight: 7, color: 'chocolate'});
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geojson.setStyle({weight: 22, color: 'coral'});
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const layer = geojson.getLayers()[0];
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expect(layer.options.weight).to.equal(22);
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expect(layer.options.color).to.equal('coral');
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geojson.resetStyle(layer);
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expect(layer.options.weight).to.equal(7);
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expect(layer.options.color).to.equal('chocolate');
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});
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it('should reset init options of all child layers', () => {
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const feature = {
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type: 'Feature',
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geometry: {
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type: 'LineString',
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coordinates:[[-2.35, 51.38], [-2.38, 51.38]]
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}
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};
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const feature2 = {
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type: 'Feature',
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geometry: {
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type: 'LineString',
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coordinates:[[-3.35, 50.38], [-3.38, 50.38]]
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}
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};
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const geojson = new GeoJSON([feature, feature2], {weight: 7, color: 'chocolate'});
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geojson.setStyle({weight: 22, color: 'coral'});
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const layer = geojson.getLayers()[0];
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expect(layer.options.weight).to.equal(22);
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expect(layer.options.color).to.equal('coral');
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const layer2 = geojson.getLayers()[1];
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expect(layer2.options.weight).to.equal(22);
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expect(layer2.options.color).to.equal('coral');
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geojson.resetStyle(); // Should apply to all layers
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expect(layer.options.weight).to.equal(7);
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expect(layer.options.color).to.equal('chocolate');
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expect(layer2.options.weight).to.equal(7);
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expect(layer2.options.color).to.equal('chocolate');
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});
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});
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});
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describe('Marker#toGeoJSON', () => {
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it('returns a 2D Point object', () => {
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const marker = new Marker([10, 20]);
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expect(marker.toGeoJSON().geometry).to.eql({
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type: 'Point',
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coordinates: [20, 10]
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});
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});
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it('returns a 3D Point object', () => {
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const marker = new Marker([10, 20, 30]);
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expect(marker.toGeoJSON().geometry).to.eql({
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type: 'Point',
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coordinates: [20, 10, 30]
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});
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});
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it('should allow specific precisions', () => {
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const marker = new Marker([10.123456, 20.123456, 30.123456]);
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expect(marker.toGeoJSON(3).geometry).to.eql({
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type: 'Point',
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coordinates: [20.123, 10.123, 30.123]
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});
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});
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});
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describe('Circle#toGeoJSON', () => {
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it('returns a 2D Point object', () => {
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const circle = new Circle([10, 20], 100);
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expect(circle.toGeoJSON().geometry).to.eql({
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type: 'Point',
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coordinates: [20, 10]
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});
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});
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it('returns a 3D Point object', () => {
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const circle = new Circle([10, 20, 30], 100);
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expect(circle.toGeoJSON().geometry).to.eql({
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type: 'Point',
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coordinates: [20, 10, 30]
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});
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});
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it('should allow specific precisions', () => {
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const circle = new Circle([10.1234, 20.1234, 30.1234], 100);
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expect(circle.toGeoJSON(3).geometry).to.eql({
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type: 'Point',
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coordinates: [20.123, 10.123, 30.123]
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});
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});
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});
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describe('CircleMarker#toGeoJSON', () => {
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it('returns a 2D Point object', () => {
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const marker = new CircleMarker([10, 20]);
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expect(marker.toGeoJSON().geometry).to.eql({
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type: 'Point',
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coordinates: [20, 10]
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});
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});
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it('returns a 3D Point object', () => {
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const marker = new CircleMarker([10, 20, 30]);
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expect(marker.toGeoJSON().geometry).to.eql({
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type: 'Point',
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coordinates: [20, 10, 30]
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});
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});
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it('should allow specific precisions', () => {
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const marker = new CircleMarker([10.1234, 20.1234]);
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expect(marker.toGeoJSON(3).geometry).to.eql({
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type: 'Point',
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coordinates: [20.123, 10.123]
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});
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});
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});
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describe('Polyline#toGeoJSON', () => {
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it('returns a 2D LineString object', () => {
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const polyline = new Polyline([[10, 20], [2, 5]]);
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expect(polyline.toGeoJSON().geometry).to.eql({
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type: 'LineString',
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coordinates: [[20, 10], [5, 2]]
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});
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});
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it('returns a 3D LineString object', () => {
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const polyline = new Polyline([[10, 20, 30], [2, 5, 10]]);
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expect(polyline.toGeoJSON().geometry).to.eql({
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type: 'LineString',
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coordinates: [[20, 10, 30], [5, 2, 10]]
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});
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});
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it('should allow specific precisions', () => {
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const polyline = new Polyline([[10.1234, 20.1234, 30.1234], [2.1234, 5.1234, 10.1234]]);
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expect(polyline.toGeoJSON(3).geometry).to.eql({
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type: 'LineString',
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coordinates: [[20.123, 10.123, 30.123], [5.123, 2.123, 10.123]]
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});
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});
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});
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describe('Polyline (multi) #toGeoJSON', () => {
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it('returns a 2D MultiLineString object', () => {
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const multiPolyline = new Polyline([[[10, 20], [2, 5]], [[1, 2], [3, 4]]]);
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expect(multiPolyline.toGeoJSON().geometry).to.eql({
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type: 'MultiLineString',
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coordinates: [
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[[20, 10], [5, 2]],
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[[2, 1], [4, 3]]
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]
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});
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});
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it('returns a 3D MultiLineString object', () => {
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const multiPolyline = new Polyline([[[10, 20, 30], [2, 5, 10]], [[1, 2, 3], [4, 5, 6]]]);
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expect(multiPolyline.toGeoJSON().geometry).to.eql({
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type: 'MultiLineString',
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coordinates: [
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[[20, 10, 30], [5, 2, 10]],
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[[2, 1, 3], [5, 4, 6]]
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]
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});
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});
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it('should allow specific precisions', () => {
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const multiPolyline = new Polyline([[[10.1234, 20.1234, 30.1234], [2.1234, 5.1234, 10.1234]], [[1.1234, 2.1234, 3.1234], [4.1234, 5.1234, 6.1234]]]);
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expect(multiPolyline.toGeoJSON(3).geometry).to.eql({
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type: 'MultiLineString',
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coordinates: [
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[[20.123, 10.123, 30.123], [5.123, 2.123, 10.123]],
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[[2.123, 1.123, 3.123], [5.123, 4.123, 6.123]]
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]
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});
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});
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});
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describe('Polygon#toGeoJSON', () => {
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it('returns a 2D Polygon object (no holes) from a flat LatLngs array', () => {
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const polygon = new Polygon([[1, 2], [3, 4], [5, 6]]);
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expect(polygon.toGeoJSON().geometry).to.eql({
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type: 'Polygon',
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coordinates: [[[2, 1], [4, 3], [6, 5], [2, 1]]]
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});
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});
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it('returns a 3D Polygon object (no holes) from a flat LatLngs array', () => {
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const polygon = new Polygon([[1, 2, 3], [4, 5, 6], [7, 8, 9]]);
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expect(polygon.toGeoJSON().geometry).to.eql({
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type: 'Polygon',
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coordinates: [[[2, 1, 3], [5, 4, 6], [8, 7, 9], [2, 1, 3]]]
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});
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});
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it('returns a 2D Polygon object from a simple GeoJSON like input', () => {
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const multiPolygon = new Polygon([[[1, 2], [3, 4], [5, 6]]]);
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expect(multiPolygon.toGeoJSON().geometry).to.eql({
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type: 'Polygon',
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coordinates: [
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[[2, 1], [4, 3], [6, 5], [2, 1]]
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]
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});
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});
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it('returns a 3D MultiPolygon object from a simple GeoJSON like input', () => {
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const multiPolygon = new Polygon([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]]);
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expect(multiPolygon.toGeoJSON().geometry).to.eql({
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type: 'Polygon',
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coordinates: [
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[[2, 1, 3], [5, 4, 6], [8, 7, 9], [2, 1, 3]]
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]
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});
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});
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it('returns a 2D Polygon object (with holes)', () => {
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const polygon = new Polygon([[[1, 2], [3, 4], [5, 6]], [[7, 8], [9, 10], [11, 12]]]);
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expect(polygon.toGeoJSON().geometry).to.eql({
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type: 'Polygon',
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coordinates: [
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[[2, 1], [4, 3], [6, 5], [2, 1]],
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[[8, 7], [10, 9], [12, 11], [8, 7]]
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]
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});
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});
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it('returns a 3D Polygon object (with holes)', () => {
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const polygon = new Polygon([[[1, 2, 3], [4, 5, 6], [7, 8, 9]], [[10, 11, 12], [13, 14, 15], [16, 17, 18]]]);
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expect(polygon.toGeoJSON().geometry).to.eql({
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type: 'Polygon',
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coordinates: [
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[[2, 1, 3], [5, 4, 6], [8, 7, 9], [2, 1, 3]],
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[[11, 10, 12], [14, 13, 15], [17, 16, 18], [11, 10, 12]]
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]
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});
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});
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it('should allow specific precisions', () => {
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const polygon = new Polygon([[1.1234, 2.1234], [3.1234, 4.1234], [5.1234, 6.1234]]);
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expect(polygon.toGeoJSON(3).geometry).to.eql({
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type: 'Polygon',
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coordinates: [[[2.123, 1.123], [4.123, 3.123], [6.123, 5.123], [2.123, 1.123]]]
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});
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});
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});
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describe('Polygon (multi) #toGeoJSON', () => {
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it('returns a 2D MultiPolygon object', () => {
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const multiPolygon = new Polygon([[[[1, 2], [3, 4], [5, 6]]]]);
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expect(multiPolygon.toGeoJSON().geometry).to.eql({
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type: 'MultiPolygon',
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coordinates: [
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[[[2, 1], [4, 3], [6, 5], [2, 1]]]
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]
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});
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});
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it('returns a 3D MultiPolygon object', () => {
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const multiPolygon = new Polygon([[[[1, 2, 3], [4, 5, 6], [7, 8, 9]]]]);
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expect(multiPolygon.toGeoJSON().geometry).to.eql({
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type: 'MultiPolygon',
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coordinates: [
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[[[2, 1, 3], [5, 4, 6], [8, 7, 9], [2, 1, 3]]]
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]
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});
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});
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it('returns a 2D MultiPolygon object with two polygons', () => {
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const multiPolygon = new Polygon([[[[1, 2], [3, 4], [5, 6]]], [[[7, 8], [9, 10], [11, 12]]]]);
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expect(multiPolygon.toGeoJSON().geometry).to.eql({
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type: 'MultiPolygon',
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coordinates: [
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[[[2, 1], [4, 3], [6, 5], [2, 1]]],
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[[[8, 7], [10, 9], [12, 11], [8, 7]]]
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]
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});
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});
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it('returns a 2D MultiPolygon object with polygon having a hole', () => {
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const multiPolygon = new Polygon([[[[1, 2], [3, 4], [5, 6]], [[7, 8], [9, 10], [11, 12]]]]);
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expect(multiPolygon.toGeoJSON().geometry).to.eql({
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type: 'MultiPolygon',
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coordinates: [
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[[[2, 1], [4, 3], [6, 5], [2, 1]], [[8, 7], [10, 9], [12, 11], [8, 7]]]
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]
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});
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});
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it('should allow specific precisions', () => {
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const multiPolygon = new Polygon([[[[1.1234, 2.1234], [3.1234, 4.1234], [5.1234, 6.1234]]]]);
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expect(multiPolygon.toGeoJSON(3).geometry).to.eql({
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type: 'MultiPolygon',
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coordinates: [
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[[[2.123, 1.123], [4.123, 3.123], [6.123, 5.123], [2.123, 1.123]]]
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]
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});
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});
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});
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describe('LayerGroup#toGeoJSON', () => {
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it('returns a 2D FeatureCollection object', () => {
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const marker = new Marker([10, 20]),
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polyline = new Polyline([[10, 20], [2, 5]]),
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layerGroup = new LayerGroup([marker, polyline]);
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expect(layerGroup.toGeoJSON()).to.eql({
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type: 'FeatureCollection',
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features: [marker.toGeoJSON(), polyline.toGeoJSON()]
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});
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});
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it('returns a 3D FeatureCollection object', () => {
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const marker = new Marker([10, 20, 30]),
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polyline = new Polyline([[10, 20, 30], [2, 5, 10]]),
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layerGroup = new LayerGroup([marker, polyline]);
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expect(layerGroup.toGeoJSON()).to.eql({
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type: 'FeatureCollection',
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features: [marker.toGeoJSON(), polyline.toGeoJSON()]
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});
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});
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it('ensures that every member is a Feature', () => {
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const tileLayer = new TileLayer(),
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layerGroup = new LayerGroup([tileLayer]);
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tileLayer.toGeoJSON = function () {
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return {
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type: 'Point',
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coordinates: [20, 10]
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};
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};
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expect(layerGroup.toGeoJSON()).to.eql({
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type: 'FeatureCollection',
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features: [{
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type: 'Feature',
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properties: {},
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geometry: {
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type: 'Point',
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coordinates: [20, 10]
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}
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}]
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});
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});
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it('roundtrips GeometryCollection features', () => {
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const json = {
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'type': 'FeatureCollection',
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'features': [{
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'type': 'Feature',
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'geometry': {
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'type': 'GeometryCollection',
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'geometries': [{
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'type': 'LineString',
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'coordinates': [[-122.4425587930444, 37.80666418607323], [-122.4428379594768, 37.80663578323093]]
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}, {
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'type': 'LineString',
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'coordinates': [
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[-122.4425509770566, 37.80662588061205],
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[-122.4428340530617, 37.8065999493009]
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]
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}]
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},
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'properties': {
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'name': 'SF Marina Harbor Master'
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}
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}]
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};
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const expected = {
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'type': 'FeatureCollection',
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'features': [{
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'type': 'Feature',
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'geometry': {
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'type': 'GeometryCollection',
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'geometries': [{
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'type': 'LineString',
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'coordinates': [[-122.442559, 37.806664], [-122.442838, 37.806636]]
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}, {
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'type': 'LineString',
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'coordinates': [[-122.442551, 37.806626], [-122.442834, 37.8066]]
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}]
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},
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'properties': {
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'name': 'SF Marina Harbor Master'
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}
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}]
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};
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expect(new GeoJSON(json).toGeoJSON()).to.eql(expected);
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});
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it('roundtrips MultiPoint features', () => {
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const json = {
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'type': 'FeatureCollection',
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'features': [{
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'type': 'Feature',
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'geometry': {
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'type': 'MultiPoint',
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'coordinates': [[-122.4425587930444, 37.80666418607323], [-122.4428379594768, 37.80663578323093]]
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},
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'properties': {
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'name': 'Test MultiPoints'
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}
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}]
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};
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const expected = {
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'type': 'FeatureCollection',
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'features': [{
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'type': 'Feature',
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'geometry': {
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'type': 'MultiPoint',
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'coordinates': [[-122.442559, 37.806664], [-122.442838, 37.806636]]
|
|
},
|
|
'properties': {
|
|
'name': 'Test MultiPoints'
|
|
}
|
|
}]
|
|
};
|
|
expect(new GeoJSON(json).toGeoJSON()).to.eql(expected);
|
|
});
|
|
|
|
it('omits layers which do not implement toGeoJSON', () => {
|
|
const tileLayer = new TileLayer(),
|
|
layerGroup = new LayerGroup([tileLayer]);
|
|
expect(layerGroup.toGeoJSON()).to.eql({
|
|
type: 'FeatureCollection',
|
|
features: []
|
|
});
|
|
});
|
|
|
|
it('should return only one FeatureCollection for nested LayerGroups', () => {
|
|
const layerGroup = new LayerGroup([
|
|
new LayerGroup([new Marker([-41.3330287, 173.2008273])]),
|
|
new Marker([-41.273356, 173.287278])
|
|
]);
|
|
|
|
const geoJSON = layerGroup.toGeoJSON();
|
|
|
|
expect(geoJSON.features.length).to.eql(2);
|
|
expect(geoJSON.features[0].type).to.eql('Feature');
|
|
expect(geoJSON.features[1].type).to.eql('Feature');
|
|
});
|
|
|
|
it('should allow specific precisions', () => {
|
|
const marker = new Marker([10, 20]),
|
|
polyline = new Polyline([[10, 20], [2, 5]]),
|
|
layerGroup = new LayerGroup([marker, polyline]);
|
|
expect(layerGroup.toGeoJSON(3)).to.eql({
|
|
type: 'FeatureCollection',
|
|
features: [marker.toGeoJSON(3), polyline.toGeoJSON(3)]
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('GeoJSON functions', () => {
|
|
describe('#geometryToLayer', () => {
|
|
const point = {
|
|
type: 'Point',
|
|
coordinates: [0, 0]
|
|
};
|
|
const multiPoint = {
|
|
type: 'MultiPoint',
|
|
coordinates: [
|
|
[0, 0], [10, 10]
|
|
]
|
|
};
|
|
const line = {
|
|
type: 'LineString',
|
|
coordinates: [
|
|
[0, 0], [10, 10], [20, 20]
|
|
]
|
|
};
|
|
const multiLine = {
|
|
type: 'MultiLineString',
|
|
coordinates: [
|
|
[[10, 10], [20, 20], [30, 30]],
|
|
[[50, 50], [60, 60], [70, 70]]
|
|
]
|
|
};
|
|
const polygon = {
|
|
type: 'Polygon',
|
|
coordinates: [
|
|
[[30, 10], [40, 40], [20, 40], [10, 20], [30, 10]]
|
|
]
|
|
};
|
|
const multiPolygon = {
|
|
type: 'MultiPolygon',
|
|
coordinates: [
|
|
[
|
|
[[30, 20], [45, 40], [10, 40], [30, 20]]
|
|
],
|
|
[
|
|
[[15, 5], [40, 10], [10, 20], [5, 10], [15, 5]]
|
|
]
|
|
]
|
|
};
|
|
const geometryCollection = {
|
|
type: 'GeometryCollection',
|
|
geometries: [
|
|
{
|
|
type: 'Point',
|
|
coordinates: [0, 0]
|
|
},
|
|
{
|
|
type: 'LineString',
|
|
coordinates: [
|
|
[10, 10], [20, 20]
|
|
]
|
|
}
|
|
]
|
|
};
|
|
|
|
const featureCollection = {
|
|
type: 'FeatureCollection',
|
|
features: [
|
|
{
|
|
type: 'Feature',
|
|
geometry: {
|
|
type: 'Point',
|
|
coordinates: [0, 0]
|
|
}
|
|
},
|
|
]
|
|
};
|
|
|
|
function customPointToLayer(geojsonPoint, latLng) {
|
|
return new Circle(latLng, {
|
|
radius: geojsonPoint.properties.radius
|
|
});
|
|
}
|
|
|
|
function customCoordstoLatLng(coords) {
|
|
return new LatLng(coords[1] + 1, coords[0] + 1, coords[2] + 1);
|
|
}
|
|
|
|
[
|
|
[point, Marker],
|
|
[line, Polyline],
|
|
[polygon, Polygon],
|
|
[multiPoint, FeatureGroup],
|
|
[multiLine, Polyline],
|
|
[multiPolygon, Polygon],
|
|
[geometryCollection, FeatureGroup],
|
|
[featureCollection, FeatureGroup]
|
|
].forEach((item) => {
|
|
const geometry = item[0], expectedType = item[1];
|
|
|
|
it(`creates a Layer from a GeoJSON feature (type='${geometry.type}')`, () => {
|
|
const layer = GeoJSON.geometryToLayer({
|
|
type: 'Feature',
|
|
geometry
|
|
});
|
|
expect(layer).to.be.instanceOf(expectedType);
|
|
});
|
|
|
|
it(`creates a Layer from a GeoJSON geometry (type='${geometry.type}')`, () => {
|
|
const layer = GeoJSON.geometryToLayer(geometry);
|
|
expect(layer).to.be.instanceOf(expectedType);
|
|
});
|
|
});
|
|
|
|
it('throws an error if feature is an invalid GeoJSON object', () => {
|
|
expect(() => GeoJSON.geometryToLayer({
|
|
type: 'Feature',
|
|
geometry: {
|
|
type: 'invalid',
|
|
coordinates: [0, 0]
|
|
}
|
|
})).to.throw('Invalid GeoJSON object.');
|
|
});
|
|
|
|
it('returns nothing if feature does not have a geometry property', () => {
|
|
const ret = GeoJSON.geometryToLayer({type: 'Feature'});
|
|
expect(ret).not.to.be.true;
|
|
});
|
|
|
|
it('creates a Layer using pointToLayer option (Point)', () => {
|
|
const layer = GeoJSON.geometryToLayer({
|
|
type: 'Feature',
|
|
geometry: point,
|
|
properties: {radius: 100}
|
|
}, {
|
|
pointToLayer: customPointToLayer
|
|
});
|
|
expect(layer).to.be.instanceOf(Circle);
|
|
expect(layer.options.radius).to.equal(100);
|
|
});
|
|
|
|
it('creates a Layer using pointToLayer option (MultiPoint)', () => {
|
|
const layer = GeoJSON.geometryToLayer({
|
|
type: 'Feature',
|
|
geometry: multiPoint,
|
|
properties: {radius: 100}
|
|
}, {
|
|
pointToLayer: customPointToLayer
|
|
});
|
|
layer.eachLayer((lyr) => {
|
|
expect(lyr).to.be.instanceOf(Circle);
|
|
expect(lyr.options.radius).to.equal(100);
|
|
});
|
|
});
|
|
|
|
it('creates a Layer using coordsToLatLng option (Point)', () => {
|
|
const layer = GeoJSON.geometryToLayer({
|
|
type: 'Feature',
|
|
geometry: {
|
|
type: 'Point',
|
|
coordinates: [1, 2, 3]
|
|
}
|
|
}, {
|
|
coordsToLatLng: customCoordstoLatLng
|
|
});
|
|
expect(layer.getLatLng().equals(new LatLng(3, 2, 4))).to.be.true;
|
|
});
|
|
|
|
it('creates a Layer using coordsToLatLng option (MultiPoint)', () => {
|
|
const layer = GeoJSON.geometryToLayer({
|
|
type: 'Feature',
|
|
geometry: {
|
|
type: 'MultiPoint',
|
|
coordinates: [
|
|
[1, 2, 3], [4, 5, 6]
|
|
]
|
|
}
|
|
}, {
|
|
coordsToLatLng: customCoordstoLatLng
|
|
});
|
|
|
|
expect(layer.getLayers()[0].getLatLng().equals(new LatLng(3, 2, 4))).to.be.true;
|
|
expect(layer.getLayers()[1].getLatLng().equals(new LatLng(6, 5, 7))).to.be.true;
|
|
});
|
|
});
|
|
|
|
describe('#coordsToLatLng', () => {
|
|
it('creates a LatLng object with given coordinates', () => {
|
|
const latLng = GeoJSON.coordsToLatLng([1, 2]);
|
|
const latLngWithAlt = GeoJSON.coordsToLatLng([3, 4, 5]);
|
|
expect(latLng).to.be.instanceOf(LatLng);
|
|
expect(latLngWithAlt).to.be.instanceOf(LatLng);
|
|
expect(latLng.equals(new LatLng(2, 1))).to.be.true;
|
|
expect(latLngWithAlt.equals(new LatLng(4, 3, 5)));
|
|
});
|
|
});
|
|
|
|
describe('#coordsToLatLngs', () => {
|
|
|
|
function customCoordsToLatLng(coords) {
|
|
return new LatLng(coords[1] + 1, coords[0] + 1, coords[2] + 1);
|
|
}
|
|
|
|
it('creates a multidimensional array of LatLngs', () => {
|
|
const latLngs = GeoJSON.coordsToLatLngs([[1, 2], [3, 4], [5, 6]]);
|
|
|
|
expect(latLngs[0].equals(new LatLng(1, 2)));
|
|
expect(latLngs[1].equals(new LatLng(3, 4)));
|
|
expect(latLngs[2].equals(new LatLng(5, 6)));
|
|
|
|
latLngs.forEach((latLng) => {
|
|
expect(latLng).to.be.instanceOf(LatLng);
|
|
});
|
|
});
|
|
|
|
it('creates a multidimensional array of LatLngs (levelsDeep=1)', () => {
|
|
const latLngs = GeoJSON.coordsToLatLngs([
|
|
[[1, 2], [3, 4], [5, 6]],
|
|
[[5, 6], [7, 8], [9, 10]]
|
|
], 1);
|
|
|
|
expect(latLngs[0][0].equals(new LatLng(1, 2)));
|
|
expect(latLngs[0][1].equals(new LatLng(3, 4)));
|
|
expect(latLngs[0][2].equals(new LatLng(5, 6)));
|
|
|
|
expect(latLngs[1][0].equals(new LatLng(5, 6)));
|
|
expect(latLngs[1][1].equals(new LatLng(7, 8)));
|
|
expect(latLngs[1][2].equals(new LatLng(9, 10)));
|
|
|
|
latLngs.forEach((arr) => {
|
|
arr.forEach((latlng) => {
|
|
expect(latlng).to.be.instanceOf(LatLng);
|
|
});
|
|
});
|
|
});
|
|
|
|
it('creates a multidimensional array of LatLngs with custom coordsToLatLng', () => {
|
|
const coords = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
|
|
const latLngs = GeoJSON.coordsToLatLngs(coords, 0, customCoordsToLatLng);
|
|
|
|
expect(latLngs[0].equals(new LatLng(3, 2, 4)));
|
|
expect(latLngs[1].equals(new LatLng(6, 5, 7)));
|
|
expect(latLngs[2].equals(new LatLng(9, 8, 10)));
|
|
});
|
|
|
|
it('creates a multidimensional array of LatLngs with custom coordsToLatLng (levelDeep=1)', () => {
|
|
const coords = [
|
|
[[1, 2, 3], [4, 5, 6]],
|
|
[[12, 13, 14], [15, 16, 17]]
|
|
];
|
|
const latLngs = GeoJSON.coordsToLatLngs(coords, 1, customCoordsToLatLng);
|
|
|
|
expect(latLngs[0][0].equals(new LatLng(3, 2, 4)));
|
|
expect(latLngs[0][1].equals(new LatLng(6, 5, 7)));
|
|
|
|
expect(latLngs[1][0].equals(new LatLng(14, 13, 15)));
|
|
expect(latLngs[1][1].equals(new LatLng(17, 16, 18)));
|
|
});
|
|
});
|
|
|
|
describe('#latLngToCoords', () => {
|
|
it('accepts latlng array', () => {
|
|
const coords = GeoJSON.latLngToCoords([2, 1, 3]);
|
|
expect(coords).to.eql([1, 2, 3]);
|
|
});
|
|
|
|
it('returns an array of coordinates and altitude', () => {
|
|
const coords = GeoJSON.latLngToCoords(new LatLng(2, 1));
|
|
const coordsWithAlt = GeoJSON.latLngToCoords(new LatLng(2, 1, 3));
|
|
expect(coords).to.eql([1, 2]);
|
|
expect(coordsWithAlt).to.eql([1, 2, 3]);
|
|
});
|
|
|
|
it('returns an array of coordinates with given precision', () => {
|
|
const coords = GeoJSON.latLngToCoords(new LatLng(
|
|
2.123456, 1.123456
|
|
), 3);
|
|
const coordsWithAlt = GeoJSON.latLngToCoords(new LatLng(
|
|
2.123456, 1.123456, 3.123456
|
|
), 3);
|
|
expect(coords).to.eql([1.123, 2.123]);
|
|
expect(coordsWithAlt).to.eql([1.123, 2.123, 3.123]);
|
|
});
|
|
});
|
|
|
|
describe('#latLngsToCoords', () => {
|
|
it('accepts multidimensional latlng array', () => {
|
|
const coords = GeoJSON.latLngsToCoords([[2, 1, 3], [5, 4, 6]]);
|
|
expect(coords).to.eql([[1, 2, 3], [4, 5, 6]]);
|
|
});
|
|
|
|
it('returns a multidimensional array of coordinates', () => {
|
|
const coords = GeoJSON.latLngsToCoords([new LatLng(2, 1), new LatLng(4, 3)]);
|
|
const coordWithAlt = GeoJSON.latLngsToCoords([new LatLng(2, 1, 3), new LatLng(5, 4, 6)]);
|
|
expect(coords).to.eql([[1, 2], [3, 4]]);
|
|
expect(coordWithAlt).to.eql([[1, 2, 3], [4, 5, 6]]);
|
|
});
|
|
|
|
it('returns a multidimensional array of coordinates (levelDeep=1)', () => {
|
|
const latLngs = [
|
|
[new LatLng(2, 1), new LatLng(4, 3)],
|
|
[new LatLng(6, 5), new LatLng(8, 7)]
|
|
];
|
|
const coords = GeoJSON.latLngsToCoords(latLngs, 1);
|
|
expect(coords).to.eql([
|
|
[[1, 2], [3, 4]],
|
|
[[5, 6], [7, 8]]
|
|
]);
|
|
});
|
|
|
|
it('returns a multidimensional array of coordinates (closed=True)', () => {
|
|
const latLngs = [new LatLng(2, 1), new LatLng(4, 3), new LatLng(6, 5)];
|
|
const coords = GeoJSON.latLngsToCoords(latLngs, 0, true);
|
|
expect(coords).to.eql([[1, 2], [3, 4], [5, 6], [1, 2]]);
|
|
});
|
|
|
|
it('returns a multidimensional array of coordinates (levelsDeep=1, closed=True)', () => {
|
|
const latLngs = [
|
|
[new LatLng(2, 1), new LatLng(4, 3), new LatLng(6, 5)],
|
|
[new LatLng(8, 7), new LatLng(10, 9), new LatLng(12, 11)]
|
|
];
|
|
const coords = GeoJSON.latLngsToCoords(latLngs, 1, true);
|
|
expect(coords).to.eql([
|
|
[[1, 2], [3, 4], [5, 6], [1, 2]],
|
|
[[7, 8], [9, 10], [11, 12], [7, 8]]
|
|
]);
|
|
});
|
|
|
|
it('returns a multidimensional array of coordinates with given precision', () => {
|
|
const latLngs = [new LatLng(2.123456, 1.123456), new LatLng(4.123456, 3.123456)];
|
|
const coords = GeoJSON.latLngsToCoords(latLngs, 0, false, 3);
|
|
expect(coords).to.eql([[1.123, 2.123], [3.123, 4.123]]);
|
|
});
|
|
|
|
it('returns a valid geojson from an unbalanced multipolygon', () => {
|
|
const poly = new Polygon([
|
|
[
|
|
[
|
|
[51.509, -0.08],
|
|
[51.503, -0.06],
|
|
[51.51, -0.046]
|
|
],
|
|
[
|
|
[51.508, -0.06],
|
|
[51.504, -0.06],
|
|
[51.509, -0.05]
|
|
]
|
|
], [
|
|
[51.499, -0.08],
|
|
[51.493, -0.06],
|
|
[51.48, -0.046]
|
|
]
|
|
]);
|
|
|
|
expect(poly.toGeoJSON(3).geometry).to.eql({
|
|
type: 'MultiPolygon',
|
|
coordinates: [
|
|
[
|
|
[
|
|
[-0.08, 51.509],
|
|
[-0.06, 51.503],
|
|
[-0.046, 51.51],
|
|
[-0.08, 51.509]
|
|
],
|
|
[
|
|
[-0.06, 51.508],
|
|
[-0.06, 51.504],
|
|
[-0.05, 51.509],
|
|
[-0.06, 51.508]
|
|
]
|
|
], [
|
|
[-0.08, 51.499],
|
|
[-0.06, 51.493],
|
|
[-0.046, 51.48],
|
|
[-0.08, 51.499]
|
|
]
|
|
]
|
|
});
|
|
});
|
|
it('has no reference between first and last coordinates', () => {
|
|
const coords = GeoJSON.latLngsToCoords([[2, 1, 3], [5, 4, 6]], null, true);
|
|
expect(coords).to.eql([[1, 2, 3], [4, 5, 6], [1, 2, 3]]);
|
|
expect(coords[0] === coords[2]).to.be.false;
|
|
});
|
|
it('still works if no values in coords array', () => {
|
|
expect(() => {
|
|
GeoJSON.latLngsToCoords([[]], 1, true);
|
|
}).to.not.throw();
|
|
});
|
|
});
|
|
|
|
describe('#asFeature', () => {
|
|
const geometry1 = {
|
|
type: 'Point',
|
|
coordinates: [0, 0]
|
|
};
|
|
|
|
const geometry2 = {
|
|
type: 'Point',
|
|
coordinates: [1, 1]
|
|
};
|
|
|
|
const feature1 = {
|
|
type: 'Feature',
|
|
geometry: geometry1,
|
|
properties: {a: 1}
|
|
};
|
|
|
|
const feature2 = {
|
|
type: 'Feature',
|
|
geometry: geometry2,
|
|
properties: {b: 2}
|
|
};
|
|
|
|
const featureCollection = {
|
|
type: 'FeatureCollection',
|
|
features: [
|
|
feature1,
|
|
feature2
|
|
]
|
|
};
|
|
|
|
it('given a bare geometry returns a GeoJSON-like feature', () => {
|
|
const ret = GeoJSON.asFeature(geometry1);
|
|
expect(ret).to.eql({
|
|
type: 'Feature',
|
|
properties: {},
|
|
geometry: geometry1
|
|
});
|
|
});
|
|
|
|
it('given a GeoJSON feature directly returns it', () => {
|
|
const ret = GeoJSON.asFeature(feature1);
|
|
expect(ret).to.eql(feature1);
|
|
});
|
|
|
|
it('given a GeoJSON feature collection directly returns it', () => {
|
|
const ret = GeoJSON.asFeature(featureCollection);
|
|
expect(ret).to.eql(featureCollection);
|
|
});
|
|
});
|
|
});
|