21241467751

Committed 22 Jan 2026 08:31AM UTC coverage: 91.105% (-0.01%) from 91.115%

Build # 21241467751

Build Type

Pull #9955

github

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web-flow

Commit Message

Merge 46c735350 into 83ac41278

Pull Request Pull Request #9955: chore(mapbox): Remove internal deck mode from `MapboxLayer`

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/modules/mapbox/src/deck-utils.ts

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors

import {Deck, MapView, _GlobeView as GlobeView, _flatten as flatten} from '@deck.gl/core';
import type {Viewport, MapViewState, Layer} from '@deck.gl/core';
import type {Parameters} from '@luma.gl/core';
import type MapboxLayer from './mapbox-layer';
import type MapboxLayerGroup from './mapbox-layer-group';
import type {LayerOverlayProps, Map} from './types';

import {lngLatToWorld, unitsPerMeter} from '@math.gl/web-mercator';

const MAPBOX_VIEW_ID = 'mapbox';

type UserData = {
  currentViewport?: Viewport | null;
  mapboxLayers: Set<MapboxLayer<any>>;
  // mapboxVersion: {minor: number; major: number};
};

// Mercator constants
const TILE_SIZE = 512;
const DEGREES_TO_RADIANS = Math.PI / 180;

// Create an interleaved deck instance.
export function getDeckInstance({
  map,
  deck
}: {
  map: Map & {__deck?: Deck<any> | null};
  deck: Deck<any>;
}): Deck<any> {
  // Only create one deck instance per context
  if (map.__deck) {
    return map.__deck;
  }

  // Only initialize certain props once per context
  const customRender = deck.props._customRender;
  const onLoad = deck.props.onLoad;

  const deckProps = {
    ...deck.props,
    _customRender: () => {
      map.triggerRepaint();
      // customRender may be subscribed by DeckGL React component to update child props
      // make sure it is still called
      // Hack - do not pass a redraw reason here to prevent the React component from clearing the context
      // Rerender will be triggered by MapboxLayer's render()
      customRender?.('');
    }
  };
  deckProps.parameters = {...getDefaultParameters(map, true), ...deckProps.parameters};
  deckProps.views ||= getDefaultView(map);

  // deck is using the WebGLContext created by mapbox,
  // block deck from setting the canvas size, and use the map's viewState to drive deck.
  Object.assign(deckProps, {
    width: null,
    height: null,
    touchAction: 'unset',
    viewState: getViewState(map)
  });
  if (deck.isInitialized) {
    watchMapMove(deck, map);
  } else {
    deckProps.onLoad = () => {
      onLoad?.();
      watchMapMove(deck, map);
    };
  }

  deck.setProps(deckProps);

  (deck.userData as UserData).mapboxLayers = new Set();
  map.__deck = deck;
  map.on('render', () => {
    if (deck.isInitialized) afterRender(deck, map);
  });

  return deck;
}

function watchMapMove(deck: Deck, map: Map & {__deck?: Deck | null}) {
  const _handleMapMove = () => {
    if (deck.isInitialized) {
      // call view state methods
      onMapMove(deck, map);
    } else {
      // deregister itself when deck is finalized
      map.off('move', _handleMapMove);
    }
  };
  map.on('move', _handleMapMove);
}

export function removeDeckInstance(map: Map & {__deck?: Deck | null}) {
  map.__deck?.finalize();
  map.__deck = null;
}

export function getDefaultParameters(map: Map, interleaved: boolean): Parameters {
  const result: Parameters = interleaved
    ? {
        depthWriteEnabled: true,
        depthCompare: 'less-equal',
        depthBias: 0,
        blend: true,
        blendColorSrcFactor: 'src-alpha',
        blendColorDstFactor: 'one-minus-src-alpha',
        blendAlphaSrcFactor: 'one',
        blendAlphaDstFactor: 'one-minus-src-alpha',
        blendColorOperation: 'add',
        blendAlphaOperation: 'add'
      }
    : {};
  if (getProjection(map) === 'globe') {
    result.cullMode = 'back';
  }
  return result;
}

export function addLayer(deck: Deck, layer: MapboxLayer<any>): void {
  (deck.userData as UserData).mapboxLayers.add(layer);
}

export function removeLayer(deck: Deck, layer: MapboxLayer<any>): void {
  (deck.userData as UserData).mapboxLayers.delete(layer);
}

export function drawLayer(
  deck: Deck,
  map: Map,
  layer: MapboxLayer<any>,
  renderParameters: any
): void {
  let {currentViewport} = deck.userData as UserData;
  let clearStack: boolean = false;
  if (!currentViewport) {
    // This is the first layer drawn in this render cycle.
    // Generate viewport from the current map state.
    currentViewport = getViewport(deck, map, renderParameters);
    (deck.userData as UserData).currentViewport = currentViewport;
    clearStack = true;
  }

  if (!deck.isInitialized) {
    return;
  }

  deck._drawLayers('mapbox-repaint', {
    viewports: [currentViewport],
    layerFilter: params =>
      (!deck.props.layerFilter || deck.props.layerFilter(params)) &&
      (layer.id === params.layer.id || params.layer.props.operation.includes('terrain')),
    clearStack,
    clearCanvas: false
  });
}

export function drawLayerGroup(
  deck: Deck,
  map: Map,
  group: MapboxLayerGroup,
  renderParameters: any
): void {
  let {currentViewport} = deck.userData as UserData;
  let clearStack: boolean = false;
  if (!currentViewport) {
    // This is the first layer drawn in this render cycle.
    // Generate viewport from the current map state.
    currentViewport = getViewport(deck, map, renderParameters);
    (deck.userData as UserData).currentViewport = currentViewport;
    clearStack = true;
  }

  if (!deck.isInitialized) {
    return;
  }

  deck._drawLayers('mapbox-repaint', {
    viewports: [currentViewport],
    layerFilter: params => {
      if (deck.props.layerFilter && !deck.props.layerFilter(params)) {
        return false;
      }

      const layer = params.layer as Layer<LayerOverlayProps>;
      if (layer.props.beforeId === group.beforeId && layer.props.slot === group.slot) {
        return true;
      }
      return false;
    },
    clearStack,
    clearCanvas: false
  });
}

export function getProjection(map: Map): 'mercator' | 'globe' {
  const projection = map.getProjection?.();
  const type =
    // maplibre projection spec
    projection?.type ||
    // mapbox projection spec
    projection?.name;
  if (type === 'globe') {
    return 'globe';
  }
  if (type && type !== 'mercator') {
    throw new Error('Unsupported projection');
  }
  return 'mercator';
}

export function getDefaultView(map: Map): GlobeView | MapView {
  if (getProjection(map) === 'globe') {
    return new GlobeView({id: MAPBOX_VIEW_ID});
  }
  return new MapView({id: MAPBOX_VIEW_ID});
}

export function getViewState(map: Map): MapViewState & {
  repeat: boolean;
  padding: {
    left: number;
    right: number;
    top: number;
    bottom: number;
  };
} {
  const {lng, lat} = map.getCenter();

  const viewState: MapViewState & {
    repeat: boolean;
    padding: {
      left: number;
      right: number;
      top: number;
      bottom: number;
    };
  } = {
    // Longitude returned by getCenter can be outside of [-180, 180] when zooming near the anti meridian
    // https://github.com/visgl/deck.gl/issues/6894
    longitude: ((lng + 540) % 360) - 180,
    latitude: lat,
    zoom: map.getZoom(),
    bearing: map.getBearing(),
    pitch: map.getPitch(),
    padding: map.getPadding(),
    repeat: map.getRenderWorldCopies()
  };

  if (map.getTerrain?.()) {
    // When the base map has terrain, we need to target the camera at the terrain surface
    centerCameraOnTerrain(map, viewState);
  }

  return viewState;
}

function centerCameraOnTerrain(map: Map, viewState: MapViewState) {
  if (map.getFreeCameraOptions) {
    // mapbox-gl v2
    const {position} = map.getFreeCameraOptions();
    if (!position || position.z === undefined) {
      return;
    }

    // @ts-ignore transform is not typed
    const height = map.transform.height;
    const {longitude, latitude, pitch} = viewState;

    // Convert mapbox mercator coordinate to deck common space
    const cameraX = position.x * TILE_SIZE;
    const cameraY = (1 - position.y) * TILE_SIZE;
    const cameraZ = position.z * TILE_SIZE;

    // Mapbox manipulates zoom in terrain mode, see discussion here: https://github.com/mapbox/mapbox-gl-js/issues/12040
    const center = lngLatToWorld([longitude, latitude]);
    const dx = cameraX - center[0];
    const dy = cameraY - center[1];
    const cameraToCenterDistanceGround = Math.sqrt(dx * dx + dy * dy);

    const pitchRadians = pitch! * DEGREES_TO_RADIANS;
    const altitudePixels = 1.5 * height;
    const scale =
      pitchRadians < 0.001
        ? // Pitch angle too small to deduce the look at point, assume elevation is 0
          (altitudePixels * Math.cos(pitchRadians)) / cameraZ
        : (altitudePixels * Math.sin(pitchRadians)) / cameraToCenterDistanceGround;
    viewState.zoom = Math.log2(scale);

    const cameraZFromSurface = (altitudePixels * Math.cos(pitchRadians)) / scale;
    const surfaceElevation = cameraZ - cameraZFromSurface;
    viewState.position = [0, 0, surfaceElevation / unitsPerMeter(latitude)];
  }
  // @ts-ignore transform is not typed
  else if (typeof map.transform.elevation === 'number') {
    // maplibre-gl
    // @ts-ignore transform is not typed
    viewState.position = [0, 0, map.transform.elevation];
  }
}

// Since maplibre-gl@5
// https://github.com/maplibre/maplibre-gl-js/blob/main/src/style/style_layer/custom_style_layer.ts
type MaplibreRenderParameters = {
  farZ: number;
  nearZ: number;
  fov: number;
  modelViewProjectionMatrix: number[];
  projectionMatrix: number[];
};

function getViewport(deck: Deck, map: Map, renderParameters?: unknown): Viewport {
  const viewState = getViewState(map);
  const {views} = deck.props;
  const view =
    (views && flatten(views).find((v: {id: string}) => v.id === MAPBOX_VIEW_ID)) ||
    getDefaultView(map);

  if (renderParameters) {
    // Called from MapboxLayer.render
    // Magic number, matches mapbox-gl@>=1.3.0's projection matrix
    view.props.nearZMultiplier = 0.2;
  }

  // Get the base map near/far plane
  // renderParameters is maplibre API but not mapbox
  // Transform is not an official API, properties could be undefined for older versions
  const nearZ = (renderParameters as MaplibreRenderParameters)?.nearZ ?? map.transform._nearZ;
  const farZ = (renderParameters as MaplibreRenderParameters)?.farZ ?? map.transform._farZ;
  if (Number.isFinite(nearZ)) {
    viewState.nearZ = nearZ / map.transform.height;
    viewState.farZ = farZ / map.transform.height;
  }
  // Otherwise fallback to default calculation using nearZMultiplier/farZMultiplier

  return view.makeViewport({
    width: deck.width,
    height: deck.height,
    viewState
  }) as Viewport;
}

function afterRender(deck: Deck, map: Map): void {
  const {mapboxLayers} = deck.userData as UserData;

  // Draw non-Mapbox layers
  const mapboxLayerIds = Array.from(mapboxLayers, layer => layer.id);
  const deckLayers = flatten(deck.props.layers, Boolean) as Layer[];
  const hasNonMapboxLayers = deckLayers.some(layer => layer && !mapboxLayerIds.includes(layer.id));
  let viewports = deck.getViewports();
  const mapboxViewportIdx = viewports.findIndex(vp => vp.id === MAPBOX_VIEW_ID);
  const hasNonMapboxViews = viewports.length > 1 || mapboxViewportIdx < 0;

  if (hasNonMapboxLayers || hasNonMapboxViews) {
    if (mapboxViewportIdx >= 0) {
      viewports = viewports.slice();
      viewports[mapboxViewportIdx] = getViewport(deck, map);
    }

    deck._drawLayers('mapbox-repaint', {
      viewports,
      layerFilter: params =>
        (!deck.props.layerFilter || deck.props.layerFilter(params)) &&
        (params.viewport.id !== MAPBOX_VIEW_ID || !mapboxLayerIds.includes(params.layer.id)),
      clearCanvas: false
    });
  }

  // End of render cycle, clear generated viewport
  (deck.userData as UserData).currentViewport = null;
}

function onMapMove(deck: Deck, map: Map): void {
  deck.setProps({
    viewState: getViewState(map)
  });
  // Camera changed, will trigger a map repaint right after this
  // Clear any change flag triggered by setting viewState so that deck does not request
  // a second repaint
  deck.needsRedraw({clearRedrawFlags: true});
}

1	// deck.gl	1✔
2	// SPDX-License-Identifier: MIT	1✔
3	// Copyright (c) vis.gl contributors	1✔
4		1✔
5	import {Deck, MapView, _GlobeView as GlobeView, _flatten as flatten} from '@deck.gl/core';	1✔
6	import type {Viewport, MapViewState, Layer} from '@deck.gl/core';	1✔
7	import type {Parameters} from '@luma.gl/core';	1✔
8	import type MapboxLayer from './mapbox-layer';	1✔
9	import type MapboxLayerGroup from './mapbox-layer-group';	1✔
10	import type {LayerOverlayProps, Map} from './types';	1✔
11		1✔
12	import {lngLatToWorld, unitsPerMeter} from '@math.gl/web-mercator';	1✔
13		1✔
14	const MAPBOX_VIEW_ID = 'mapbox';	1✔
15		1✔
16	type UserData = {	1✔
17	currentViewport?: Viewport \| null;	1✔
18	mapboxLayers: Set<MapboxLayer<any>>;	1✔
19	// mapboxVersion: {minor: number; major: number};	1✔
20	};	1✔
21		1✔
22	// Mercator constants	1✔
23	const TILE_SIZE = 512;	1✔
24	const DEGREES_TO_RADIANS = Math.PI / 180;	1✔
25		1✔
26	// Create an interleaved deck instance.	1✔
27	export function getDeckInstance({	1✔
28	map,	14✔
29	deck	14✔
30	}: {	14✔
31	map: Map & {__deck?: Deck<any> \| null};	14✔
32	deck: Deck<any>;	14✔
33	}): Deck<any> {	14✔
34	// Only create one deck instance per context	14✔
35	if (map.__deck) {	14!
UNCOV 36	return map.__deck;	×
UNCOV 37	}	×
38		14✔
39	// Only initialize certain props once per context	14✔
40	const customRender = deck.props._customRender;	14✔
41	const onLoad = deck.props.onLoad;	14✔
42		14✔
43	const deckProps = {	14✔
44	...deck.props,	14✔
45	_customRender: () => {	14✔
46	map.triggerRepaint();	15✔
47	// customRender may be subscribed by DeckGL React component to update child props	15✔
48	// make sure it is still called	15✔
49	// Hack - do not pass a redraw reason here to prevent the React component from clearing the context	15✔
50	// Rerender will be triggered by MapboxLayer's render()	15✔
51	customRender?.('');	15!
52	}	15✔
53	};	14✔
54	deckProps.parameters = {...getDefaultParameters(map, true), ...deckProps.parameters};	14✔
55	deckProps.views \|\|= getDefaultView(map);	14✔
56		14✔
57	// deck is using the WebGLContext created by mapbox,	14✔
58	// block deck from setting the canvas size, and use the map's viewState to drive deck.	14✔
59	Object.assign(deckProps, {	14✔
60	width: null,	14✔
61	height: null,	14✔
62	touchAction: 'unset',	14✔
63	viewState: getViewState(map)	14✔
64	});	14✔
65	if (deck.isInitialized) {	14✔
66	watchMapMove(deck, map);	2✔
67	} else {	14✔
68	deckProps.onLoad = () => {	12✔
69	onLoad?.();	10✔
70	watchMapMove(deck, map);	10✔
71	};	10✔
72	}	12✔
73		14✔
74	deck.setProps(deckProps);	14✔
75		14✔
76	(deck.userData as UserData).mapboxLayers = new Set();	14✔
77	map.__deck = deck;	14✔
78	map.on('render', () => {	14✔
79	if (deck.isInitialized) afterRender(deck, map);	17✔
80	});	14✔
81		14✔
82	return deck;	14✔
83	}	14✔
84		1✔
85	function watchMapMove(deck: Deck, map: Map & {__deck?: Deck \| null}) {	12✔
86	const _handleMapMove = () => {	12✔
87	if (deck.isInitialized) {	1!
88	// call view state methods	×
UNCOV 89	onMapMove(deck, map);	×
90	} else {	1✔
91	// deregister itself when deck is finalized	1✔
92	map.off('move', _handleMapMove);	1✔
93	}	1✔
94	};	1✔
95	map.on('move', _handleMapMove);	12✔
96	}	12✔
97		1✔
98	export function removeDeckInstance(map: Map & {__deck?: Deck \| null}) {	1✔
99	map.__deck?.finalize();	10✔
100	map.__deck = null;	10✔
101	}	10✔
102		1✔
103	export function getDefaultParameters(map: Map, interleaved: boolean): Parameters {	1✔
104	const result: Parameters = interleaved	32✔
105	? {	28✔
106	depthWriteEnabled: true,	28✔
107	depthCompare: 'less-equal',	28✔
108	depthBias: 0,	28✔
109	blend: true,	28✔
110	blendColorSrcFactor: 'src-alpha',	28✔
111	blendColorDstFactor: 'one-minus-src-alpha',	28✔
112	blendAlphaSrcFactor: 'one',	28✔
113	blendAlphaDstFactor: 'one-minus-src-alpha',	28✔
114	blendColorOperation: 'add',	28✔
115	blendAlphaOperation: 'add'	28✔
116	}	28✔
117	: {};	4✔
118	if (getProjection(map) === 'globe') {	32✔
119	result.cullMode = 'back';	2✔
120	}	2✔
121	return result;	32✔
122	}	32✔
123		1✔
124	export function addLayer(deck: Deck, layer: MapboxLayer<any>): void {	1✔
125	(deck.userData as UserData).mapboxLayers.add(layer);	18✔
126	}	18✔
127		1✔
128	export function removeLayer(deck: Deck, layer: MapboxLayer<any>): void {	1✔
129	(deck.userData as UserData).mapboxLayers.delete(layer);	12✔
130	}	12✔
131		1✔
132	export function drawLayer(	1✔
133	deck: Deck,	11✔
134	map: Map,	11✔
135	layer: MapboxLayer<any>,	11✔
136	renderParameters: any	11✔
137	): void {	11✔
138	let {currentViewport} = deck.userData as UserData;	11✔
139	let clearStack: boolean = false;	11✔
140	if (!currentViewport) {	11✔
141	// This is the first layer drawn in this render cycle.	10✔
142	// Generate viewport from the current map state.	10✔
143	currentViewport = getViewport(deck, map, renderParameters);	10✔
144	(deck.userData as UserData).currentViewport = currentViewport;	10✔
145	clearStack = true;	10✔
146	}	10✔
147		11✔
148	if (!deck.isInitialized) {	11✔
149	return;	1✔
150	}	1✔
151		10✔
152	deck._drawLayers('mapbox-repaint', {	10✔
153	viewports: [currentViewport],	10✔
154	layerFilter: params =>	10✔
155	(!deck.props.layerFilter \|\| deck.props.layerFilter(params)) &&	13✔
156	(layer.id === params.layer.id \|\| params.layer.props.operation.includes('terrain')),	10✔
157	clearStack,	10✔
158	clearCanvas: false	10✔
159	});	10✔
160	}	10✔
161		1✔
162	export function drawLayerGroup(	1✔
163	deck: Deck,	3✔
164	map: Map,	3✔
165	group: MapboxLayerGroup,	3✔
166	renderParameters: any	3✔
167	): void {	3✔
168	let {currentViewport} = deck.userData as UserData;	3✔
169	let clearStack: boolean = false;	3✔
170	if (!currentViewport) {	3✔
171	// This is the first layer drawn in this render cycle.	3✔
172	// Generate viewport from the current map state.	3✔
173	currentViewport = getViewport(deck, map, renderParameters);	3✔
174	(deck.userData as UserData).currentViewport = currentViewport;	3✔
175	clearStack = true;	3✔
176	}	3✔
177		3✔
178	if (!deck.isInitialized) {	3!
179	return;	×
UNCOV 180	}	×
181		3✔
182	deck._drawLayers('mapbox-repaint', {	3✔
183	viewports: [currentViewport],	3✔
184	layerFilter: params => {	3✔
185	if (deck.props.layerFilter && !deck.props.layerFilter(params)) {	4!
186	return false;	×
UNCOV 187	}	×
188		4✔
189	const layer = params.layer as Layer<LayerOverlayProps>;	4✔
190	if (layer.props.beforeId === group.beforeId && layer.props.slot === group.slot) {	4✔
191	return true;	4✔
192	}	4!
UNCOV 193	return false;	×
194	},	4✔
195	clearStack,	3✔
196	clearCanvas: false	3✔
197	});	3✔
198	}	3✔
199		1✔
200	export function getProjection(map: Map): 'mercator' \| 'globe' {	1✔
201	const projection = map.getProjection?.();	65✔
202	const type =	65✔
203	// maplibre projection spec	65✔
204	projection?.type \|\|	65!
205	// mapbox projection spec	×
UNCOV 206	projection?.name;	×
207	if (type === 'globe') {	65✔
208	return 'globe';	5✔
209	}	5✔
210	if (type && type !== 'mercator') {	65!
211	throw new Error('Unsupported projection');	×
UNCOV 212	}	✔
213	return 'mercator';	60✔
214	}	60✔
215		1✔
216	export function getDefaultView(map: Map): GlobeView \| MapView {	1✔
217	if (getProjection(map) === 'globe') {	25✔
218	return new GlobeView({id: MAPBOX_VIEW_ID});	2✔
219	}	2✔
220	return new MapView({id: MAPBOX_VIEW_ID});	23✔
221	}	23✔
222		1✔
223	export function getViewState(map: Map): MapViewState & {	1✔
224	repeat: boolean;	35✔
225	padding: {	35✔
226	left: number;	35✔
227	right: number;	35✔
228	top: number;	35✔
229	bottom: number;	35✔
230	};	35✔
231	} {	35✔
232	const {lng, lat} = map.getCenter();	35✔
233		35✔
234	const viewState: MapViewState & {	35✔
235	repeat: boolean;	35✔
236	padding: {	35✔
237	left: number;	35✔
238	right: number;	35✔
239	top: number;	35✔
240	bottom: number;	35✔
241	};	35✔
242	} = {	35✔
243	// Longitude returned by getCenter can be outside of [-180, 180] when zooming near the anti meridian	35✔
244	// https://github.com/visgl/deck.gl/issues/6894	35✔
245	longitude: ((lng + 540) % 360) - 180,	35✔
246	latitude: lat,	35✔
247	zoom: map.getZoom(),	35✔
248	bearing: map.getBearing(),	35✔
249	pitch: map.getPitch(),	35✔
250	padding: map.getPadding(),	35✔
251	repeat: map.getRenderWorldCopies()	35✔
252	};	35✔
253		35✔
254	if (map.getTerrain?.()) {	35!
255	// When the base map has terrain, we need to target the camera at the terrain surface	×
256	centerCameraOnTerrain(map, viewState);	×
UNCOV 257	}	×
258		35✔
259	return viewState;	35✔
260	}	35✔
261		1✔
262	function centerCameraOnTerrain(map: Map, viewState: MapViewState) {	×
263	if (map.getFreeCameraOptions) {	×
264	// mapbox-gl v2	×
265	const {position} = map.getFreeCameraOptions();	×
266	if (!position \|\| position.z === undefined) {	×
267	return;	×
268	}	×
269		×
270	// @ts-ignore transform is not typed	×
271	const height = map.transform.height;	×
272	const {longitude, latitude, pitch} = viewState;	×
273		×
274	// Convert mapbox mercator coordinate to deck common space	×
275	const cameraX = position.x * TILE_SIZE;	×
276	const cameraY = (1 - position.y) * TILE_SIZE;	×
277	const cameraZ = position.z * TILE_SIZE;	×
278		×
279	// Mapbox manipulates zoom in terrain mode, see discussion here: https://github.com/mapbox/mapbox-gl-js/issues/12040	×
280	const center = lngLatToWorld([longitude, latitude]);	×
281	const dx = cameraX - center[0];	×
282	const dy = cameraY - center[1];	×
283	const cameraToCenterDistanceGround = Math.sqrt(dx * dx + dy * dy);	×
284		×
285	const pitchRadians = pitch! * DEGREES_TO_RADIANS;	×
286	const altitudePixels = 1.5 * height;	×
287	const scale =	×
288	pitchRadians < 0.001	×
289	? // Pitch angle too small to deduce the look at point, assume elevation is 0	×
290	(altitudePixels * Math.cos(pitchRadians)) / cameraZ	×
291	: (altitudePixels * Math.sin(pitchRadians)) / cameraToCenterDistanceGround;	×
292	viewState.zoom = Math.log2(scale);	×
293		×
294	const cameraZFromSurface = (altitudePixels * Math.cos(pitchRadians)) / scale;	×
295	const surfaceElevation = cameraZ - cameraZFromSurface;	×
296	viewState.position = [0, 0, surfaceElevation / unitsPerMeter(latitude)];	×
297	}	×
298	// @ts-ignore transform is not typed	×
299	else if (typeof map.transform.elevation === 'number') {	×
300	// maplibre-gl	×
301	// @ts-ignore transform is not typed	×
302	viewState.position = [0, 0, map.transform.elevation];	×
303	}	×
UNCOV 304	}	×
305		1✔
306	// Since maplibre-gl@5	1✔
307	// https://github.com/maplibre/maplibre-gl-js/blob/main/src/style/style_layer/custom_style_layer.ts	1✔
308	type MaplibreRenderParameters = {	1✔
309	farZ: number;	1✔
310	nearZ: number;	1✔
311	fov: number;	1✔
312	modelViewProjectionMatrix: number[];	1✔
313	projectionMatrix: number[];	1✔
314	};	1✔
315		1✔
316	function getViewport(deck: Deck, map: Map, renderParameters?: unknown): Viewport {	17✔
317	const viewState = getViewState(map);	17✔
318	const {views} = deck.props;	17✔
319	const view =	17✔
320	(views && flatten(views).find((v: {id: string}) => v.id === MAPBOX_VIEW_ID)) \|\|	17✔
321	getDefaultView(map);	1✔
322		17✔
323	if (renderParameters) {	17!
324	// Called from MapboxLayer.render	×
325	// Magic number, matches mapbox-gl@>=1.3.0's projection matrix	×
326	view.props.nearZMultiplier = 0.2;	×
UNCOV 327	}	×
328		17✔
329	// Get the base map near/far plane	17✔
330	// renderParameters is maplibre API but not mapbox	17✔
331	// Transform is not an official API, properties could be undefined for older versions	17✔
332	const nearZ = (renderParameters as MaplibreRenderParameters)?.nearZ ?? map.transform._nearZ;	17!
333	const farZ = (renderParameters as MaplibreRenderParameters)?.farZ ?? map.transform._farZ;	17!
334	if (Number.isFinite(nearZ)) {	17!
335	viewState.nearZ = nearZ / map.transform.height;	×
336	viewState.farZ = farZ / map.transform.height;	×
UNCOV 337	}	×
338	// Otherwise fallback to default calculation using nearZMultiplier/farZMultiplier	17✔
339		17✔
340	return view.makeViewport({	17✔
341	width: deck.width,	17✔
342	height: deck.height,	17✔
343	viewState	17✔
344	}) as Viewport;	17✔
345	}	17✔
346		1✔
347	function afterRender(deck: Deck, map: Map): void {	16✔
348	const {mapboxLayers} = deck.userData as UserData;	16✔
349		16✔
350	// Draw non-Mapbox layers	16✔
351	const mapboxLayerIds = Array.from(mapboxLayers, layer => layer.id);	16✔
352	const deckLayers = flatten(deck.props.layers, Boolean) as Layer[];	16✔
353	const hasNonMapboxLayers = deckLayers.some(layer => layer && !mapboxLayerIds.includes(layer.id));	16✔
354	let viewports = deck.getViewports();	16✔
355	const mapboxViewportIdx = viewports.findIndex(vp => vp.id === MAPBOX_VIEW_ID);	16✔
356	const hasNonMapboxViews = viewports.length > 1 \|\| mapboxViewportIdx < 0;	16✔
357		16✔
358	if (hasNonMapboxLayers \|\| hasNonMapboxViews) {	16✔
359	if (mapboxViewportIdx >= 0) {	5✔
360	viewports = viewports.slice();	4✔
361	viewports[mapboxViewportIdx] = getViewport(deck, map);	4✔
362	}	4✔
363		5✔
364	deck._drawLayers('mapbox-repaint', {	5✔
365	viewports,	5✔
366	layerFilter: params =>	5✔
367	(!deck.props.layerFilter \|\| deck.props.layerFilter(params)) &&	9✔
368	(params.viewport.id !== MAPBOX_VIEW_ID \|\| !mapboxLayerIds.includes(params.layer.id)),	7✔
369	clearCanvas: false	5✔
370	});	5✔
371	}	5✔
372		16✔
373	// End of render cycle, clear generated viewport	16✔
374	(deck.userData as UserData).currentViewport = null;	16✔
375	}	16✔
376		1✔
377	function onMapMove(deck: Deck, map: Map): void {	×
378	deck.setProps({	×
379	viewState: getViewState(map)	×
380	});	×
381	// Camera changed, will trigger a map repaint right after this	×
382	// Clear any change flag triggered by setting viewState so that deck does not request	×
383	// a second repaint	×
384	deck.needsRedraw({clearRedrawFlags: true});	×
UNCOV 385	}	×

visgl / deck.gl / 21241467751

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