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maplibre-gl

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BSD licensed community fork of mapbox-gl, a WebGL interactive maps library

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import {describe, expect, test} from 'vitest'; import {LngLat} from '../lng_lat'; import {getGlobeCircumferencePixels, getZoomAdjustment, globeDistanceOfLocationsPixels} from './globe_utils'; describe('globe utils', () => { const digitsPrecision = 10; test('getGlobeCircumferencePixels', () => { expect(getGlobeCircumferencePixels({ worldSize: 1, center: { lat: 0 } })).toBeCloseTo(1, digitsPrecision); expect(getGlobeCircumferencePixels({ worldSize: 1, center: { lat: 60 } })).toBeCloseTo(2, digitsPrecision); }); test('globeDistanceOfLocationsPixels', () => { expect(globeDistanceOfLocationsPixels({ worldSize: 1, center: { lat: 0 } }, new LngLat(0, 0), new LngLat(90, 0))).toBeCloseTo(0.25, digitsPrecision); expect(globeDistanceOfLocationsPixels({ worldSize: 1, center: { lat: 0 } }, new LngLat(0, -45), new LngLat(0, 45))).toBeCloseTo(0.25, digitsPrecision); expect(globeDistanceOfLocationsPixels({ worldSize: 1, center: { lat: 0 } }, new LngLat(0, 0), new LngLat(45, 45))).toBeCloseTo(0.16666666666666666, digitsPrecision); }); test('getZoomAdjustment', () => { expect(getZoomAdjustment(0, 60)).toBeCloseTo(-1, digitsPrecision); expect(getZoomAdjustment(60, 0)).toBeCloseTo(1, digitsPrecision); }); });