import {describe, expect, test} from 'vitest'; import {EXTENT} from '../../data/extent'; import Point from '@mapbox/point-geometry'; import {LngLat} from '../lng_lat'; import {GlobeTransform} from './globe_transform'; import {CanonicalTileID, OverscaledTileID, UnwrappedTileID} from '../../tile/tile_id'; import {angularCoordinatesRadiansToVector, mercatorCoordinatesToAngularCoordinatesRadians, sphereSurfacePointToCoordinates} from './globe_utils'; import {expectToBeCloseToArray} from '../../util/test/util'; import {MercatorCoordinate} from '../mercator_coordinate'; import {tileCoordinatesToLocation} from './mercator_utils'; import {MercatorTransform} from './mercator_transform'; import {globeConstants} from './vertical_perspective_projection'; function testPlaneAgainstLngLat(lngDegrees: number, latDegrees: number, plane: number[]) { const lat = latDegrees / 180.0 * Math.PI; const lng = lngDegrees / 180.0 * Math.PI; const len = Math.cos(lat); const pointOnSphere = [ Math.sin(lng) * len, Math.sin(lat), Math.cos(lng) * len ]; return planeDistance(pointOnSphere, plane); } function planeDistance(point: number[], plane: number[]) { return point[0] * plane[0] + point[1] * plane[1] + point[2] * plane[2] + plane[3]; } function createGlobeTransform() { const globeTransform = new GlobeTransform(); globeTransform.resize(640, 480); globeTransform.setFov(45); return globeTransform; } describe('GlobeTransform', () => { // Force faster animations so we can use shorter sleeps when testing them globeConstants.errorTransitionTimeSeconds = 0.1; describe('getProjectionData', () => { const globeTransform = createGlobeTransform(); test('mercator tile extents are set', () => { const projectionData = globeTransform.getProjectionData({overscaledTileID: new OverscaledTileID(1, 0, 1, 1, 0)}); expectToBeCloseToArray(projectionData.tileMercatorCoords, [0.5, 0, 0.5 / EXTENT, 0.5 / EXTENT]); }); test('Globe transition is 0 when not applying the globe matrix', () => { const projectionData = globeTransform.getProjectionData({overscaledTileID: new OverscaledTileID(1, 0, 1, 1, 0)}); expect(projectionData.projectionTransition).toBe(0); }); test('Applying the globe matrix sets transition to something different than 0', () => { const projectionData = globeTransform.getProjectionData({overscaledTileID: new OverscaledTileID(1, 0, 1, 1, 0), applyGlobeMatrix: true}); expect(projectionData.projectionTransition).not.toBe(0); }); }); describe('clipping plane', () => { const globeTransform = createGlobeTransform(); describe('general plane properties', () => { const projectionData = globeTransform.getProjectionData({overscaledTileID: new OverscaledTileID(0, 0, 0, 0, 0)}); test('plane vector length <= 1 so they are not clipped by the near plane.', () => { const len = Math.sqrt( projectionData.clippingPlane[0] * projectionData.clippingPlane[0] + projectionData.clippingPlane[1] * projectionData.clippingPlane[1] + projectionData.clippingPlane[2] * projectionData.clippingPlane[2] ); expect(len).toBeLessThanOrEqual(1); }); test('camera is in positive halfspace', () => { expect(planeDistance(globeTransform.cameraPosition as [number, number, number], projectionData.clippingPlane)).toBeGreaterThan(0); }); test('coordinates 0E,0N are in positive halfspace', () => { expect(testPlaneAgainstLngLat(0, 0, projectionData.clippingPlane)).toBeGreaterThan(0); }); test('coordinates 40E,0N are in positive halfspace', () => { expect(testPlaneAgainstLngLat(40, 0, projectionData.clippingPlane)).toBeGreaterThan(0); }); test('coordinates 0E,90N are in negative halfspace', () => { expect(testPlaneAgainstLngLat(0, 90, projectionData.clippingPlane)).toBeLessThan(0); }); test('coordinates 90E,0N are in negative halfspace', () => { expect(testPlaneAgainstLngLat(90, 0, projectionData.clippingPlane)).toBeLessThan(0); }); test('coordinates 180E,0N are in negative halfspace', () => { expect(testPlaneAgainstLngLat(180, 0, projectionData.clippingPlane)).toBeLessThan(0); }); }); }); describe('projection', () => { test('mercator coordinate to sphere point', () => { const precisionDigits = 10; let projectedAngles; let projected; projectedAngles = mercatorCoordinatesToAngularCoordinatesRadians(0.5, 0.5); expectToBeCloseToArray(projectedAngles, [0, 0], precisionDigits); projected = angularCoordinatesRadiansToVector(projectedAngles[0], projectedAngles[1]) as [number, number, number]; expectToBeCloseToArray(projected, [0, 0, 1], precisionDigits); projectedAngles = mercatorCoordinatesToAngularCoordinatesRadians(0, 0.5); expectToBeCloseToArray(projectedAngles, [Math.PI, 0], precisionDigits); projected = angularCoordinatesRadiansToVector(projectedAngles[0], projectedAngles[1]) as [number, number, number]; expectToBeCloseToArray(projected, [0, 0, -1], precisionDigits); projectedAngles = mercatorCoordinatesToAngularCoordinatesRadians(0.75, 0.5); expectToBeCloseToArray(projectedAngles, [Math.PI / 2.0, 0], precisionDigits); projected = angularCoordinatesRadiansToVector(projectedAngles[0], projectedAngles[1]) as [number, number, number]; expectToBeCloseToArray(projected, [1, 0, 0], precisionDigits); projectedAngles = mercatorCoordinatesToAngularCoordinatesRadians(0.5, 0); expectToBeCloseToArray(projectedAngles, [0, 1.4844222297453324], precisionDigits); // ~0.47pi projected = angularCoordinatesRadiansToVector(projectedAngles[0], projectedAngles[1]) as [number, number, number]; expectToBeCloseToArray(projected, [0, 0.99627207622075, 0.08626673833405434], precisionDigits); }); test('camera position', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); expectToBeCloseToArray(globeTransform.cameraPosition as number[], [0, 0, 8.110445867263898], precisionDigits); globeTransform.resize(512, 512); globeTransform.setZoom(-0.5); globeTransform.setCenter(new LngLat(0, 80)); expectToBeCloseToArray(globeTransform.cameraPosition as number[], [0, 2.2818294674820794, 0.40234810049271963], precisionDigits); globeTransform.setPitch(35); globeTransform.setBearing(70); expectToBeCloseToArray(globeTransform.cameraPosition as number[], [-0.7098603286961542, 2.002400604307631, 0.6154310261827212], precisionDigits); globeTransform.setPitch(35); globeTransform.setBearing(70); globeTransform.setRoll(40); expectToBeCloseToArray(globeTransform.cameraPosition as number[], [-0.7098603286961542, 2.002400604307631, 0.6154310261827212], precisionDigits); globeTransform.setPitch(35); globeTransform.setBearing(70); globeTransform.setRoll(180); expectToBeCloseToArray(globeTransform.cameraPosition as number[], [-0.7098603286961542, 2.002400604307631, 0.6154310261827212], precisionDigits); globeTransform.setCenter(new LngLat(-10, 42)); expectToBeCloseToArray(globeTransform.cameraPosition as number[], [-3.8450970996236364, 2.9368285470351516, 4.311953269048194], precisionDigits); }); test('sphere point to coordinate', () => { const precisionDigits = 10; let unprojected = sphereSurfacePointToCoordinates([0, 0, 1]); expect(unprojected.lng).toBeCloseTo(0, precisionDigits); expect(unprojected.lat).toBeCloseTo(0, precisionDigits); unprojected = sphereSurfacePointToCoordinates([0, 1, 0]); expect(unprojected.lng).toBeCloseTo(0, precisionDigits); expect(unprojected.lat).toBeCloseTo(90, precisionDigits); unprojected = sphereSurfacePointToCoordinates([1, 0, 0]); expect(unprojected.lng).toBeCloseTo(90, precisionDigits); expect(unprojected.lat).toBeCloseTo(0, precisionDigits); }); const screenCenter = new Point(640 / 2, 480 / 2); // We need the exact screen center const screenTopEdgeCenter = new Point(640 / 2, 0); describe('project location to coordinates', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); test('basic test', () => { globeTransform.setCenter(new LngLat(0, 0)); let projected = globeTransform.locationToScreenPoint(globeTransform.center); expect(projected.x).toBeCloseTo(screenCenter.x, precisionDigits); expect(projected.y).toBeCloseTo(screenCenter.y, precisionDigits); globeTransform.setCenter(new LngLat(70, 50)); projected = globeTransform.locationToScreenPoint(globeTransform.center); expect(projected.x).toBeCloseTo(screenCenter.x, precisionDigits); expect(projected.y).toBeCloseTo(screenCenter.y, precisionDigits); globeTransform.setCenter(new LngLat(0, 84)); projected = globeTransform.locationToScreenPoint(globeTransform.center); expect(projected.x).toBeCloseTo(screenCenter.x, precisionDigits); expect(projected.y).toBeCloseTo(screenCenter.y, precisionDigits); }); test('project a location that is slightly above and below map\'s center point', () => { globeTransform.setCenter(new LngLat(0, 0)); let projected = globeTransform.locationToScreenPoint(new LngLat(0, 1)); expect(projected.x).toBeCloseTo(screenCenter.x, precisionDigits); expect(projected.y).toBeLessThan(screenCenter.y); projected = globeTransform.locationToScreenPoint(new LngLat(0, -1)); expect(projected.x).toBeCloseTo(screenCenter.x, precisionDigits); expect(projected.y).toBeGreaterThan(screenCenter.y); }); }); describe('unproject', () => { test('unproject screen center', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); let unprojected = globeTransform.screenPointToLocation(screenCenter); expect(unprojected.lng).toBeCloseTo(globeTransform.center.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(globeTransform.center.lat, precisionDigits); globeTransform.setCenter(new LngLat(90.0, 0.0)); unprojected = globeTransform.screenPointToLocation(screenCenter); expect(unprojected.lng).toBeCloseTo(globeTransform.center.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(globeTransform.center.lat, precisionDigits); globeTransform.setCenter(new LngLat(0.0, 60.0)); unprojected = globeTransform.screenPointToLocation(screenCenter); expect(unprojected.lng).toBeCloseTo(globeTransform.center.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(globeTransform.center.lat, precisionDigits); }); test('unproject point to the side', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); let coords: LngLat; let projected: Point; let unprojected: LngLat; coords = new LngLat(0, 0); projected = globeTransform.locationToScreenPoint(coords); unprojected = globeTransform.screenPointToLocation(projected); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); coords = new LngLat(10, 20); projected = globeTransform.locationToScreenPoint(coords); unprojected = globeTransform.screenPointToLocation(projected); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); coords = new LngLat(15, -2); projected = globeTransform.locationToScreenPoint(coords); unprojected = globeTransform.screenPointToLocation(projected); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); }); test('unproject behind the pole', () => { // This test tries to unproject a point that is beyond the north pole // from the camera's point of view. // This particular case turned out to be problematic, hence this test. const precisionDigits = 10; const globeTransform = createGlobeTransform(); // Transform settings from the render test projection/globe/fill-planet-pole // See the expected result for how the globe should look with this transform. globeTransform.resize(512, 512); globeTransform.setZoom(-0.5); globeTransform.setCenter(new LngLat(0, 80)); let coords: LngLat; let projected: Point; let unprojected: LngLat; coords = new LngLat(179.9, 71); projected = globeTransform.locationToScreenPoint(coords); unprojected = globeTransform.screenPointToLocation(projected); expect(projected.x).toBeCloseTo(256.2434702034287, precisionDigits); expect(projected.y).toBeCloseTo(48.27080146399297, precisionDigits); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); // Near the pole coords = new LngLat(179.9, 89.0); projected = globeTransform.locationToScreenPoint(coords); unprojected = globeTransform.screenPointToLocation(projected); expect(projected.x).toBeCloseTo(256.0140972925064, precisionDigits); expect(projected.y).toBeCloseTo(167.69159699932908, precisionDigits); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); }); test('unproject outside of sphere', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); // Try unprojection a point somewhere above the western horizon globeTransform.setPitch(60); globeTransform.setBearing(-90); const unprojected = globeTransform.screenPointToLocation(screenTopEdgeCenter); expect(unprojected.lng).toBeCloseTo(-28.990298145461963, precisionDigits); expect(unprojected.lat).toBeCloseTo(0.0, precisionDigits); }); test('unproject further outside of sphere clamps to horizon', () => { const globeTransform = createGlobeTransform(); globeTransform.setPitch(60); globeTransform.setBearing(-90); const screenPointAboveWesternHorizon = screenTopEdgeCenter; const screenPointFurtherAboveWesternHorizon = screenTopEdgeCenter.sub(new Point(0, -100)); const unprojected = globeTransform.screenPointToLocation(screenPointAboveWesternHorizon); const unprojected2 = globeTransform.screenPointToLocation(screenPointFurtherAboveWesternHorizon); expect(unprojected.lat).toBeCloseTo(unprojected2.lat, 10); expect(unprojected.lng).toBeCloseTo(unprojected2.lng, 10); }); }); describe('setLocationAtPoint', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); globeTransform.setZoom(1); let coords: LngLat; let point: Point; let projected: Point; let unprojected: LngLat; test('identity', () => { // Should do nothing coords = new LngLat(0, 0); point = new Point(320, 240); globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); }); test('offset lnglat', () => { coords = new LngLat(5, 10); point = new Point(320, 240); globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); }); test('offset pixel + lnglat', () => { coords = new LngLat(5, 10); point = new Point(330, 240); // 10 pixels to the right globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); }); test('larger offset', () => { coords = new LngLat(30, -2); point = new Point(250, 180); globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); }); describe('rotated', () => { globeTransform.setBearing(90); test('identity', () => { // Should do nothing coords = new LngLat(0, 0); point = new Point(320, 240); globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); }); test('offset lnglat', () => { coords = new LngLat(5, 0); point = new Point(320, 240); globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); }); test('offset pixel + lnglat', () => { coords = new LngLat(0, 10); point = new Point(350, 240); // 30 pixels to the right globeTransform.setLocationAtPoint(coords, point); unprojected = globeTransform.screenPointToLocation(point); projected = globeTransform.locationToScreenPoint(coords); expect(unprojected.lng).toBeCloseTo(coords.lng, precisionDigits); expect(unprojected.lat).toBeCloseTo(coords.lat, precisionDigits); expect(projected.x).toBeCloseTo(point.x, precisionDigits); expect(projected.y).toBeCloseTo(point.y, precisionDigits); expect(globeTransform.center.lat).toBeCloseTo(20.659450722109348, precisionDigits); }); }); }); }); describe('isPointOnMapSurface', () => { const globeTransform = new GlobeTransform(); globeTransform.resize(640, 480); globeTransform.setZoom(1); test('Top screen edge', () => { expect(globeTransform.isPointOnMapSurface(new Point(320, 0))).toBe(false); }); test('Screen center', () => { expect(globeTransform.isPointOnMapSurface(new Point(320, 240))).toBe(true); }); test('Top', () => { expect(globeTransform.isPointOnMapSurface(new Point(320, 104))).toBe(false); expect(globeTransform.isPointOnMapSurface(new Point(320, 105))).toBe(true); }); test('Bottom', () => { expect(globeTransform.isPointOnMapSurface(new Point(320, 480 - 105))).toBe(true); expect(globeTransform.isPointOnMapSurface(new Point(320, 480 - 104))).toBe(false); }); test('Left', () => { expect(globeTransform.isPointOnMapSurface(new Point(184, 240))).toBe(false); expect(globeTransform.isPointOnMapSurface(new Point(185, 240))).toBe(true); }); test('Right', () => { expect(globeTransform.isPointOnMapSurface(new Point(640 - 185, 240))).toBe(true); expect(globeTransform.isPointOnMapSurface(new Point(640 - 184, 240))).toBe(false); }); test('Diagonal', () => { expect(globeTransform.isPointOnMapSurface(new Point(223, 147))).toBe(true); expect(globeTransform.isPointOnMapSurface(new Point(221, 144))).toBe(false); }); }); test('pointCoordinate', () => { const precisionDigits = 10; const globeTransform = createGlobeTransform(); let coords: LngLat; let coordsMercator: MercatorCoordinate; let projected: Point; let unprojectedCoordinates: MercatorCoordinate; coords = new LngLat(0, 0); coordsMercator = MercatorCoordinate.fromLngLat(coords); projected = globeTransform.locationToScreenPoint(coords); unprojectedCoordinates = globeTransform.screenPointToMercatorCoordinate(projected); expect(unprojectedCoordinates.x).toBeCloseTo(coordsMercator.x, precisionDigits); expect(unprojectedCoordinates.y).toBeCloseTo(coordsMercator.y, precisionDigits); coords = new LngLat(10, 20); coordsMercator = MercatorCoordinate.fromLngLat(coords); projected = globeTransform.locationToScreenPoint(coords); unprojectedCoordinates = globeTransform.screenPointToMercatorCoordinate(projected); expect(unprojectedCoordinates.x).toBeCloseTo(coordsMercator.x, precisionDigits); expect(unprojectedCoordinates.y).toBeCloseTo(coordsMercator.y, precisionDigits); }); describe('getBounds', () => { const precisionDigits = 10; const globeTransform = new GlobeTransform(); globeTransform.resize(640, 480); test('basic', () => { globeTransform.setCenter(new LngLat(0, 0)); globeTransform.setZoom(1); const bounds = globeTransform.getBounds(); expect(bounds._ne.lat).toBeCloseTo(79.3636705287052, precisionDigits); expect(bounds._ne.lng).toBeCloseTo(79.36367052870514, precisionDigits); expect(bounds._sw.lat).toBeCloseTo(-79.3636705287052, precisionDigits); expect(bounds._sw.lng).toBeCloseTo(-79.3636705287052, precisionDigits); }); test('zoomed in', () => { globeTransform.setCenter(new LngLat(0, 0)); globeTransform.setZoom(4); const bounds = globeTransform.getBounds(); expect(bounds._ne.lat).toBeCloseTo(11.76627084591695, precisionDigits); expect(bounds._ne.lng).toBeCloseTo(16.124697669965144, precisionDigits); expect(bounds._sw.lat).toBeCloseTo(-11.76627084591695, precisionDigits); expect(bounds._sw.lng).toBeCloseTo(-16.124697669965144, precisionDigits); }); test('looking at south pole', () => { globeTransform.setCenter(new LngLat(0, -84)); globeTransform.setZoom(-2); const bounds = globeTransform.getBounds(); expect(bounds._ne.lat).toBeCloseTo(-6.299534770946991, precisionDigits); expect(bounds._ne.lng).toBeCloseTo(180, precisionDigits); expect(bounds._sw.lat).toBeCloseTo(-90, precisionDigits); expect(bounds._sw.lng).toBeCloseTo(-180, precisionDigits); }); test('looking at south edge of mercator', () => { globeTransform.setCenter(new LngLat(-163, -83)); globeTransform.setZoom(3); const bounds = globeTransform.getBounds(); expect(bounds._ne.lat).toBeCloseTo(-79.75570418234764, precisionDigits); expect(bounds._ne.lng).toBeCloseTo(-124.19771985801174, precisionDigits); expect(bounds._sw.lat).toBeCloseTo(-85.59109073899032, precisionDigits); expect(bounds._sw.lng).toBeCloseTo(-201.80228014198985, precisionDigits); }); }); describe('projectTileCoordinates', () => { const precisionDigits = 10; const transform = new GlobeTransform(); transform.resize(512, 512); transform.setCenter(new LngLat(10.0, 50.0)); transform.setZoom(-1); test('basic', () => { const projection = transform.projectTileCoordinates(1024, 1024, new UnwrappedTileID(0, new CanonicalTileID(1, 1, 0)), (_x, _y) => 0); expect(projection.point.x).toBeCloseTo(0.008635590705360347, precisionDigits); expect(projection.point.y).toBeCloseTo(0.16970500709841846, precisionDigits); expect(projection.signedDistanceFromCamera).toBeCloseTo(781.0549201758624, precisionDigits); expect(projection.isOccluded).toBe(false); }); test('rotated', () => { transform.setBearing(12); transform.setPitch(10); const projection = transform.projectTileCoordinates(1024, 1024, new UnwrappedTileID(0, new CanonicalTileID(1, 1, 0)), (_x, _y) => 0); expect(projection.point.x).toBeCloseTo(-0.026585319983152694, precisionDigits); expect(projection.point.y).toBeCloseTo(0.15506884411121183, precisionDigits); expect(projection.signedDistanceFromCamera).toBeCloseTo(788.4423931260653, precisionDigits); expect(projection.isOccluded).toBe(false); }); test('occluded by planet', () => { transform.setBearing(-90); transform.setPitch(60); const projection = transform.projectTileCoordinates(8192, 8192, new UnwrappedTileID(0, new CanonicalTileID(1, 1, 0)), (_x, _y) => 0); expect(projection.point.x).toBeCloseTo(0.22428309892086878, precisionDigits); expect(projection.point.y).toBeCloseTo(-0.4462620847133465, precisionDigits); expect(projection.signedDistanceFromCamera).toBeCloseTo(822.280942015371, precisionDigits); expect(projection.isOccluded).toBe(true); }); }); describe('isLocationOccluded', () => { const transform = new GlobeTransform(); transform.resize(512, 512); transform.setCenter(new LngLat(0.0, 0.0)); transform.setZoom(-1); test('center', () => { expect(transform.isLocationOccluded(new LngLat(0, 0))).toBe(false); }); test('center from tile', () => { expect(transform.isLocationOccluded(tileCoordinatesToLocation(0, 0, new CanonicalTileID(1, 1, 1)))).toBe(false); }); test('backside', () => { expect(transform.isLocationOccluded(new LngLat(179.9, 0))).toBe(true); }); test('backside from tile', () => { expect(transform.isLocationOccluded(tileCoordinatesToLocation(0, 0, new CanonicalTileID(1, 0, 1)))).toBe(true); }); test('barely visible', () => { expect(transform.isLocationOccluded(new LngLat(84.49, 0))).toBe(false); }); test('barely hidden', () => { expect(transform.isLocationOccluded(new LngLat(84.50, 0))).toBe(true); }); }); describe('render world copies', () => { test('change projection and make sure render world copies is kept', () => { const globeTransform = createGlobeTransform(); globeTransform.setRenderWorldCopies(true); expect(globeTransform.renderWorldCopies).toBeTruthy(); }); test('change transform and make sure render world copies is kept', () => { const globeTransform = createGlobeTransform(); globeTransform.setRenderWorldCopies(true); const mercator = new MercatorTransform({minZoom: 0, maxZoom: 1, minPitch: 2, maxPitch: 3, renderWorldCopies: false}); mercator.apply(globeTransform, false); expect(mercator.renderWorldCopies).toBeTruthy(); }); }); });