240 lines
8.7 KiB
JavaScript
240 lines
8.7 KiB
JavaScript
import Feature from '../../../../src/ol/Feature.js';
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import Graticule from '../../../../src/ol/layer/Graticule.js';
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import Map from '../../../../src/ol/Map.js';
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import Stroke from '../../../../src/ol/style/Stroke.js';
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import Text from '../../../../src/ol/style/Text.js';
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import {fromLonLat, get as getProjection} from '../../../../src/ol/proj.js';
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describe('ol.layer.Graticule', function () {
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let graticule;
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function createGraticule() {
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graticule = new Graticule();
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new Map({
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layers: [graticule],
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});
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}
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describe('#createGraticule', function () {
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it('creates a graticule without labels', function () {
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createGraticule();
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const extent = [
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-25614353.926475704, -7827151.696402049, 25614353.926475704,
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7827151.696402049,
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];
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const projection = getProjection('EPSG:3857');
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const resolution = 39135.75848201024;
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const squaredTolerance = (resolution * resolution) / 4.0;
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graticule.updateProjectionInfo_(projection);
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graticule.createGraticule_(extent, [0, 0], resolution, squaredTolerance);
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expect(graticule.getMeridians().length).to.be(13);
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expect(graticule.getParallels().length).to.be(3);
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expect(graticule.meridiansLabels_).to.be(null);
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expect(graticule.parallelsLabels_).to.be(null);
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});
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it('creates a graticule with normal world labels', function () {
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const feature = new Feature();
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graticule = new Graticule({
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showLabels: true,
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wrapX: false,
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});
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new Map({
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layers: [graticule],
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});
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const extent = [
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-25614353.926475704, -7827151.696402049, 25614353.926475704,
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7827151.696402049,
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];
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const projection = getProjection('EPSG:3857');
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const resolution = 39135.75848201024;
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graticule.loaderFunction(extent, resolution, projection);
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const event = {
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context: document.createElement('canvas').getContext('2d'),
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inversePixelTransform: [1, 0, 0, 1, 0, 0],
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frameState: {
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coordinateToPixelTransform: [1, 0, 0, 1, 0, 0],
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extent: extent,
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pixelRatio: 1,
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viewState: {
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projection: projection,
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resolution: resolution,
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rotation: 0,
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},
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},
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};
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graticule.drawLabels_(event);
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expect(graticule.meridiansLabels_.length).to.be(13);
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expect(graticule.meridiansLabels_[0].text).to.be('0° 00′ 00″');
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expect(
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graticule.meridiansLabels_[0].geom.getCoordinates()[0]
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).to.roughlyEqual(0, 1e-9);
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expect(graticule.parallelsLabels_.length).to.be(3);
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expect(graticule.parallelsLabels_[0].text).to.be('0° 00′ 00″');
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expect(
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graticule.parallelsLabels_[0].geom.getCoordinates()[1]
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).to.roughlyEqual(0, 1e-9);
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feature.set('graticule_label', graticule.meridiansLabels_[0].text);
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expect(graticule.lonLabelStyle_(feature).getText().getText()).to.be(
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'0° 00′ 00″'
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);
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feature.set('graticule_label', graticule.parallelsLabels_[0].text);
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expect(graticule.latLabelStyle_(feature).getText().getText()).to.be(
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'0° 00′ 00″'
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);
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});
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it('creates a graticule with wrapped world labels', function () {
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const feature = new Feature();
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graticule = new Graticule({
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showLabels: true,
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});
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new Map({
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layers: [graticule],
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});
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const extent = [
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-25614353.926475704, -7827151.696402049, 25614353.926475704,
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7827151.696402049,
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];
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const projection = getProjection('EPSG:3857');
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const resolution = 39135.75848201024;
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graticule.loaderFunction(extent, resolution, projection);
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const event = {
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context: document.createElement('canvas').getContext('2d'),
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inversePixelTransform: [1, 0, 0, 1, 0, 0],
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frameState: {
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coordinateToPixelTransform: [1, 0, 0, 1, 0, 0],
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extent: extent,
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pixelRatio: 1,
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viewState: {
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projection: projection,
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resolution: resolution,
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rotation: 0,
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},
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},
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};
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graticule.drawLabels_(event);
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expect(graticule.meridiansLabels_.length).to.be(13);
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expect(graticule.meridiansLabels_[0].text).to.be('0° 00′ 00″');
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const coordinates = fromLonLat([360, 0]);
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expect(
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graticule.meridiansLabels_[0].geom.getCoordinates()[0]
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).to.roughlyEqual(coordinates[0], 1e-9);
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expect(graticule.parallelsLabels_.length).to.be(3);
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expect(graticule.parallelsLabels_[0].text).to.be('0° 00′ 00″');
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expect(
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graticule.parallelsLabels_[0].geom.getCoordinates()[1]
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).to.roughlyEqual(0, 1e-9);
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feature.set('graticule_label', graticule.meridiansLabels_[0].text);
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expect(graticule.lonLabelStyle_(feature).getText().getText()).to.be(
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'0° 00′ 00″'
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);
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feature.set('graticule_label', graticule.parallelsLabels_[0].text);
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expect(graticule.latLabelStyle_(feature).getText().getText()).to.be(
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'0° 00′ 00″'
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);
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});
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it('has a default stroke style', function () {
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createGraticule();
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const actualStyle = graticule.strokeStyle_;
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expect(actualStyle).not.to.be(undefined);
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expect(actualStyle instanceof Stroke).to.be(true);
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});
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it('can be configured with a stroke style', function () {
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createGraticule();
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const customStrokeStyle = new Stroke({
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color: 'rebeccapurple',
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});
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const styledGraticule = new Graticule({
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map: new Map({}),
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strokeStyle: customStrokeStyle,
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});
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const actualStyle = styledGraticule.strokeStyle_;
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expect(actualStyle).not.to.be(undefined);
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expect(actualStyle).to.be(customStrokeStyle);
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});
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it('can be configured with label options', function () {
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const latLabelStyle = new Text();
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const lonLabelStyle = new Text();
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const feature = new Feature();
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graticule = new Graticule({
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map: new Map({}),
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showLabels: true,
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lonLabelFormatter: function (lon) {
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return 'lon: ' + lon.toString();
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},
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latLabelFormatter: function (lat) {
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return 'lat: ' + lat.toString();
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},
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lonLabelPosition: 0.9,
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latLabelPosition: 0.1,
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lonLabelStyle: lonLabelStyle,
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latLabelStyle: latLabelStyle,
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});
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const extent = [
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-25614353.926475704, -7827151.696402049, 25614353.926475704,
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7827151.696402049,
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];
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const projection = getProjection('EPSG:3857');
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const resolution = 39135.75848201024;
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const squaredTolerance = (resolution * resolution) / 4.0;
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graticule.updateProjectionInfo_(projection);
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graticule.createGraticule_(extent, [0, 0], resolution, squaredTolerance);
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expect(graticule.meridiansLabels_[0].text).to.be('lon: 0');
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expect(graticule.parallelsLabels_[0].text).to.be('lat: 0');
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expect(graticule.lonLabelStyle_(feature).getText()).to.eql(lonLabelStyle);
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expect(graticule.latLabelStyle_(feature).getText()).to.eql(latLabelStyle);
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feature.set('graticule_label', graticule.meridiansLabels_[0].text);
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expect(graticule.lonLabelStyle_(feature).getText().getText()).to.be(
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'lon: 0'
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);
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feature.set('graticule_label', graticule.parallelsLabels_[0].text);
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expect(graticule.latLabelStyle_(feature).getText().getText()).to.be(
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'lat: 0'
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);
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expect(graticule.lonLabelPosition_).to.be(0.9);
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expect(graticule.latLabelPosition_).to.be(0.1);
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});
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it('can be configured with interval limits', function () {
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graticule = new Graticule({
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showLabels: true,
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lonLabelFormatter: function (lon) {
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return lon.toString();
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},
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latLabelFormatter: function (lat) {
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return lat.toString();
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},
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intervals: [10],
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});
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new Map({
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layers: [graticule],
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});
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const extent = [
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-25614353.926475704, -7827151.696402049, 25614353.926475704,
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7827151.696402049,
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];
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const projection = getProjection('EPSG:3857');
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const resolution = 4891.96981025128;
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const squaredTolerance = (resolution * resolution) / 4.0;
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graticule.updateProjectionInfo_(projection);
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graticule.createGraticule_(extent, [0, 0], resolution, squaredTolerance);
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expect(graticule.meridiansLabels_[0].text).to.be('0');
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expect(graticule.parallelsLabels_[0].text).to.be('0');
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expect(graticule.meridiansLabels_[1].text).to.be('-10');
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expect(graticule.parallelsLabels_[1].text).to.be('-10');
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expect(graticule.meridiansLabels_[2].text).to.be('-20');
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expect(graticule.parallelsLabels_[2].text).to.be('-20');
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expect(graticule.getMeridians().length).to.be(37);
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expect(graticule.getParallels().length).to.be(11);
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});
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});
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});
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