12831438227

Committed 17 Jan 2025 02:55PM UTC coverage: 66.637% (+0.1%) from 66.515%

Build # 12831438227

Build Type

Pull #2911

github

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web-flow

Commit Message

Merge fd983e845 into a207ae529

Pull Request Pull Request #2911: [fix] vector tile layer fixes

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8.17

/src/layers/src/vector-tile/vector-tile-layer.ts

// SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project

import {FeatureCollection, Feature} from 'geojson';

import {Layer as DeckLayer} from '@deck.gl/core/typed';
import {_Tile2DHeader as Tile2DHeader} from '@deck.gl/geo-layers/typed';
import {GeoJsonLayer} from '@deck.gl/layers/typed';
import {MVTSource, MVTTileSource} from '@loaders.gl/mvt';
import {PMTilesSource, PMTilesTileSource} from '@loaders.gl/pmtiles';
import GL from '@luma.gl/constants';

import {notNullorUndefined} from '@kepler.gl/common-utils';
import {
  DatasetType,
  LAYER_TYPES,
  RemoteTileFormat,
  VectorTileDatasetMetadata,
  SCALE_TYPES,
  CHANNEL_SCALES,
  DEFAULT_COLOR_UI,
  LAYER_VIS_CONFIGS
} from '@kepler.gl/constants';
import {
  getTileUrl,
  getLoaderOptions,
  KeplerTable as KeplerDataset,
  Datasets as KeplerDatasets,
  GpuFilter,
  VectorTileMetadata
} from '@kepler.gl/table';
import {
  AnimationConfig,
  Field as KeplerField,
  LayerColorConfig,
  LayerHeightConfig,
  Merge,
  MapState,
  BindedLayerCallbacks,
  VisConfigRange,
  VisConfigNumber,
  DomainStops
} from '@kepler.gl/types';
import {DataContainerInterface} from '@kepler.gl/utils';

import {MVTLayer as CustomMVTLayer} from './mvt-layer';
import VectorTileIcon from './vector-tile-icon';
import {
  default as KeplerLayer,
  LayerBaseConfig,
  LayerBaseConfigPartial,
  VisualChannel,
  VisualChannelDomain,
  VisualChannelField
} from '../base-layer';

import AbstractTileLayer, {
  LayerData as CommonLayerData,
  commonTileVisConfigs,
  AbstractTileLayerConfig,
  AbstractTileLayerVisConfigSettings
} from './abstract-tile-layer';
import TileDataset from './common-tile/tile-dataset';
import {
  isDomainStops,
  isDomainQuantiles,
  isIndexedField,
  getPropertyByZoom
} from './common-tile/tile-utils';

export const DEFAULT_HIGHLIGHT_FILL_COLOR = [252, 242, 26, 150];
export const DEFAULT_HIGHLIGHT_STROKE_COLOR = [252, 242, 26, 255];
export const MAX_CACHE_SIZE_MOBILE = 1; // Minimize caching, visible tiles will always be loaded
export const DEFAULT_STROKE_WIDTH = 1;

/**
 * Type for transformRequest returned parameters.
 */
export type RequestParameters = {
  /** The URL to be requested. */
  url: string;
  /** Search parameters to be added onto the URL. */
  searchParams: URLSearchParams;
  /** Options passed to fetch. */
  options: RequestInit;
};

// This type *seems* to be what loaders.gl currently returns for tile content.
// Apparently this might be different depending on the loaders version, and for...
// reasons we use two different versions of loaders right now.
// TODO: The Features[] version should not be needed when we update to a newer
// version of Deck.gl and use only one version of loaders
type TileContent =
  | (FeatureCollection & {shape: 'geojson-table'})
  | (Feature[] & {shape: undefined});

type VectorTile = Tile2DHeader<TileContent>;

type LayerData = CommonLayerData & {
  tilesetDataUrl?: string | null;
  tileSource: MVTTileSource | PMTilesTileSource | null;
};

type VectorTileLayerRenderOptions = Merge<
  {
    idx: number;
    visible: boolean;
    mapState: MapState;
    data: any;
    animationConfig: AnimationConfig;
    gpuFilter: GpuFilter;
    layerCallbacks: BindedLayerCallbacks;
    objectHovered: {
      index: number;
      tile: VectorTile;
      sourceLayer: typeof GeoJsonLayer;
    };
  },
  LayerData
>;

export const vectorTileVisConfigs = {
  ...commonTileVisConfigs,

  stroked: {
    ...LAYER_VIS_CONFIGS.stroked,
    defaultValue: false
  },

  // TODO figure out why strokeColorScale can't be const
  strokeColorScale: 'strokeColorScale' as any,
  strokeColorRange: 'strokeColorRange' as const,

  sizeRange: 'strokeWidthRange' as const,
  strokeWidth: {
    ...LAYER_VIS_CONFIGS.thickness,
    property: 'strokeWidth',
    defaultValue: 0.5,
    allowCustomValue: false
  },

  radiusScale: 'radiusScale' as any,
  radiusRange: {
    ...LAYER_VIS_CONFIGS.radiusRange,
    type: 'number',
    defaultValue: [0, 1],
    isRanged: true,
    range: [0, 1],
    step: 0.01
  } as VisConfigRange
};

export type VectorTileLayerConfig = Merge<
  AbstractTileLayerConfig,
  {
    sizeField?: VisualChannelField;
    sizeScale?: string;
    sizeDomain?: VisualChannelDomain;

    strokeColorField: VisualChannelField;

    radiusField?: VisualChannelField;
    radiusScale?: string;
    radiusDomain?: VisualChannelDomain;
    radiusRange?: any;
  }
>;

export type VectorTileLayerVisConfigSettings = Merge<
  AbstractTileLayerVisConfigSettings,
  {
    sizeRange: VisConfigRange;
    strokeWidth: VisConfigNumber;
  }
>;

export default class VectorTileLayer extends AbstractTileLayer<VectorTile, Feature[]> {
  declare config: VectorTileLayerConfig;
  declare visConfigSettings: VectorTileLayerVisConfigSettings;

  constructor(props: ConstructorParameters<typeof AbstractTileLayer>[0]) {
    super(props);
    this.registerVisConfig(vectorTileVisConfigs);
    this.tileDataset = this.initTileDataset();
  }

  meta = {};

  static findDefaultLayerProps(dataset: KeplerDataset): {
    props: {dataId: string; label?: string; isVisible: boolean}[];
  } {
    if (dataset.type !== DatasetType.VECTOR_TILE) {
      return {props: []};
    }
    return super.findDefaultLayerProps(dataset);
  }

  initTileDataset(): TileDataset<VectorTile, Feature[]> {
    return new TileDataset({
      getTileId: (tile: VectorTile): string => tile.id,
      getIterable: (tile: VectorTile): Feature[] => {
        if (tile.content) {
          return tile.content.shape === 'geojson-table' ? tile.content.features : tile.content;
        }
        return [];
      },
      getRowCount: (features: Feature[]): number => features.length,
      getRowValue: this.accessRowValue
    });
  }

  get type() {
    return LAYER_TYPES.vectorTile;
  }

  get name(): string {
    return 'Vector Tile';
  }

  get layerIcon(): KeplerLayer['layerIcon'] {
    return VectorTileIcon;
  }

  get supportedDatasetTypes(): DatasetType[] {
    return [DatasetType.VECTOR_TILE];
  }

  get visualChannels(): Record<string, VisualChannel> {
    const visualChannels = super.visualChannels;
    return {
      ...visualChannels,
      strokeColor: {
        property: 'strokeColor',
        field: 'strokeColorField',
        scale: 'strokeColorScale',
        domain: 'strokeColorDomain',
        range: 'strokeColorRange',
        key: 'strokeColor',
        channelScaleType: CHANNEL_SCALES.color,
        accessor: 'getLineColor',
        condition: config => config.visConfig.stroked,
        nullValue: visualChannels.color.nullValue,
        getAttributeValue: config => config.visConfig.strokeColor || config.color
      },
      size: {
        property: 'stroke',
        field: 'sizeField',
        scale: 'sizeScale',
        domain: 'sizeDomain',
        range: 'sizeRange',
        key: 'size',
        channelScaleType: CHANNEL_SCALES.size,
        nullValue: 0,
        accessor: 'getLineWidth',
        condition: config => config.visConfig.stroked,
        getAttributeValue: config => config.visConfig.strokeWidth || DEFAULT_STROKE_WIDTH
      },
      radius: {
        property: 'radius',
        field: 'radiusField',
        scale: 'radiusScale',
        domain: 'radiusDomain',
        range: 'radiusRange',
        key: 'radius',
        channelScaleType: CHANNEL_SCALES.size,
        nullValue: 0,
        getAttributeValue: config => {
          return config.visConfig.radius || config.radius;
        },
        accessor: 'getPointRadius',
        defaultValue: config => config.radius
      }
    };
  }

  getDefaultLayerConfig(
    props: LayerBaseConfigPartial
  ): LayerBaseConfig & Partial<LayerColorConfig & LayerHeightConfig> {
    const defaultLayerConfig = super.getDefaultLayerConfig(props);
    return {
      ...defaultLayerConfig,
      colorScale: SCALE_TYPES.quantize,

      strokeColorField: null,
      strokeColorDomain: [0, 1],
      strokeColorScale: SCALE_TYPES.quantile,
      colorUI: {
        ...defaultLayerConfig.colorUI,
        // @ts-expect-error LayerConfig
        strokeColorRange: DEFAULT_COLOR_UI
      },

      radiusField: null,
      radiusDomain: [0, 1],
      radiusScale: SCALE_TYPES.linear
    };
  }

  getHoverData(
    object: {properties?: Record<string, Record<string, unknown>>},
    dataContainer: DataContainerInterface,
    fields: KeplerField[]
  ): (Record<string, unknown> | null)[] {
    return fields.map(f => object.properties?.[f.name] ?? null);
  }

  calculateLayerDomain(
    dataset: KeplerDataset,
    visualChannel: VisualChannel
  ): DomainStops | number[] {
    const defaultDomain = [0, 1];

    const field = this.config[visualChannel.field];
    const scale = this.config[visualChannel.scale];
    if (!field) {
      // if colorField or sizeField were set back to null
      return defaultDomain;
    }
    if (scale === SCALE_TYPES.quantile && isDomainQuantiles(field?.filterProps?.domainQuantiles)) {
      return field.filterProps.domainQuantiles;
    }
    if (isDomainStops(field?.filterProps?.domainStops)) {
      return field.filterProps.domainStops;
    } else if (Array.isArray(field?.filterProps?.domain)) {
      return field.filterProps.domain;
    }

    return defaultDomain;
  }

  getScaleOptions(channelKey: string): string[] {
    let options = KeplerLayer.prototype.getScaleOptions.call(this, channelKey);

    const channel = this.visualChannels.strokeColor;
    const field = this.config[channel.field];
    if (
      !(
        isDomainQuantiles(field?.filterProps?.domainQuantiles) ||
        this.config.visConfig.dynamicColor ||
        // If we've set the scale to quantile, we need to include it - there's a loading
        // period in which the visConfig isn't set yet, but if we don't return the right
        // scale type we lose it
        this.config.colorScale === SCALE_TYPES.quantile
      )
    ) {
      options = options.filter(scale => scale !== SCALE_TYPES.quantile);
    }

    return options;
  }

  accessRowValue(
    field?: KeplerField,
    indexKey?: number | null
  ): (field: KeplerField, datum: Feature) => number | null {
    // if is indexed field
    if (isIndexedField(field) && indexKey !== null) {
      const fieldName = indexKey && field?.indexBy?.mappedValue[indexKey];
      if (fieldName) {
        return (f, datum) => {
          if (datum.properties) {
            return datum.properties[fieldName];
          }
          // TODO debug this with indexed tiled dataset
          return datum[fieldName];
        };
      }
    }

    // default
    return (f, datum) => {
      if (f && datum.properties) {
        return datum.properties[f.name];
      }
      // support picking & highlighting
      return f ? datum[f.fieldIdx] : null;
    };
  }

  updateLayerMeta(dataset: KeplerDataset, datasets: KeplerDatasets): void {
    if (dataset.type !== DatasetType.VECTOR_TILE) {
      return;
    }

    const datasetMeta = dataset.metadata as VectorTileMetadata & VectorTileDatasetMetadata;
    this.updateMeta({
      datasetId: dataset.id,
      datasets,
      bounds: datasetMeta.bounds
    });
  }

  formatLayerData(
    datasets: KeplerDatasets,
    oldLayerData: unknown,
    animationConfig: AnimationConfig
  ): LayerData {
    const {dataId} = this.config;
    if (!notNullorUndefined(dataId)) {
      return {tileSource: null};
    }
    const dataset = datasets[dataId];

    let tilesetDataUrl: string | undefined;
    let tileSource: LayerData['tileSource'] = null;

    if (dataset?.type === DatasetType.VECTOR_TILE) {
      const datasetMetadata = dataset.metadata as VectorTileMetadata & VectorTileDatasetMetadata;
      const remoteTileFormat = datasetMetadata?.remoteTileFormat;
      if (remoteTileFormat === RemoteTileFormat.MVT) {
        const transformFetch = async (input: RequestInfo | URL, init?: RequestInit | undefined) => {
          const requestData: RequestParameters = {
            url: input as string,
            searchParams: new URLSearchParams(),
            options: init ?? {}
          };

          return fetch(requestData.url, requestData.options);
        };

        tilesetDataUrl = datasetMetadata?.tilesetDataUrl;
        tileSource = tilesetDataUrl
          ? MVTSource.createDataSource(decodeURIComponent(tilesetDataUrl), {
              mvt: {
                metadataUrl: datasetMetadata?.tilesetMetadataUrl ?? null,
                loadOptions: {
                  fetch: transformFetch
                }
              }
            })
          : null;
      } else if (remoteTileFormat === RemoteTileFormat.PMTILES) {
        // TODO: to render image pmtiles need to use TileLayer and BitmapLayer (https://github.com/visgl/loaders.gl/blob/master/examples/website/tiles/components/tile-source-layer.ts)
        tilesetDataUrl = datasetMetadata?.tilesetDataUrl;
        tileSource = tilesetDataUrl ? PMTilesSource.createDataSource(tilesetDataUrl, {}) : null;
      }
    }

    return {
      ...super.formatLayerData(datasets, oldLayerData, animationConfig),
      tilesetDataUrl: typeof tilesetDataUrl === 'string' ? getTileUrl(tilesetDataUrl) : null,
      tileSource
    };
  }

  hasHoveredObject(objectInfo) {
    if (super.hasHoveredObject(objectInfo)) {
      const features = objectInfo?.tile?.content?.features;
      return features[objectInfo.index];
    }
    return null;
  }

  renderSubLayers(props: Record<string, any>): DeckLayer | DeckLayer[] {
    let {data} = props;

    data = data?.shape === 'geojson-table' ? data.features : data;
    if (!data?.length) {
      return [];
    }

    const tile: Tile2DHeader = props.tile;
    const zoom = tile.index.z;

    return new GeoJsonLayer({
      ...props,
      data,
      getFillColor: props.getFillColorByZoom ? props.getFillColor(zoom) : props.getFillColor,
      getElevation: props.getElevationByZoom ? props.getElevation(zoom) : props.getElevation,
      // radius for points
      pointRadiusScale: props.pointRadiusScale, // props.getPointRadiusScaleByZoom(zoom),
      pointRadiusUnits: props.pointRadiusUnits,
      getPointRadius: props.getPointRadius,
      // For some reason tile Layer reset autoHighlight to false
      pickable: true,
      autoHighlight: true,
      stroked: props.stroked,
      // wrapLongitude: true causes missing side polygon when extrude is enabled
      wrapLongitude: false
    });
  }

  // generate a deck layer
  renderLayer(opts: VectorTileLayerRenderOptions): DeckLayer[] {
    const {mapState, data, animationConfig, gpuFilter, objectHovered, layerCallbacks} = opts;
    const {animation, visConfig} = this.config;

    this.setLayerDomain = layerCallbacks.onSetLayerDomain;

    const defaultLayerProps = this.getDefaultDeckLayerProps(opts);
    const eleZoomFactor = this.getElevationZoomFactor(mapState);

    const transitions = this.config.visConfig.transition
      ? {
          getFillColor: {
            duration: animationConfig.duration
          },
          getElevation: {
            duration: animationConfig.duration
          }
        }
      : undefined;

    const colorField = this.config.colorField as KeplerField;
    const heightField = this.config.heightField as KeplerField;
    const strokeColorField = this.config.strokeColorField as KeplerField;
    const sizeField = this.config.sizeField as KeplerField;
    const radiusField = this.config.radiusField as KeplerField;

    if (data.tileSource) {
      const hoveredObject = this.hasHoveredObject(objectHovered);

      const layers = [
        new CustomMVTLayer({
          ...defaultLayerProps,
          ...data,
          onViewportLoad: this.onViewportLoad,
          data: data.tilesetDataUrl,
          getTileData: data.tileSource?.getTileData,
          tileSource: data.tileSource,
          getFilterValue: this.getGpuFilterValueAccessor(opts),
          filterRange: gpuFilter.filterRange,
          lineWidthUnits: 'pixels',

          binary: false,
          elevationScale: visConfig.elevationScale * eleZoomFactor,
          extruded: visConfig.enable3d,
          stroked: visConfig.stroked,

          // TODO: this is hard coded, design a UI to allow user assigned unique property id
          // uniqueIdProperty: 'ufid',
          renderSubLayers: this.renderSubLayers,
          // when radiusUnits is meter
          getPointRadiusScaleByZoom: getPropertyByZoom(visConfig.radiusByZoom, visConfig.radius),
          pointRadiusUnits: visConfig.radiusUnits ? 'pixels' : 'meters',
          pointRadiusScale: radiusField ? visConfig.radius : 1,

          pointRadiusMinPixels: 1,
          autoHighlight: true,
          highlightColor: DEFAULT_HIGHLIGHT_FILL_COLOR,
          pickable: true,
          transitions,
          updateTriggers: {
            getFilterValue: {
              ...gpuFilter.filterValueUpdateTriggers,
              currentTime: animation.enabled ? animationConfig.currentTime : null
            },
            getFillColor: {
              color: this.config.color,
              colorField: this.config.colorField,
              colorScale: this.config.colorScale,
              colorDomain: this.config.colorDomain,
              colorRange: visConfig.colorRange,
              currentTime: isIndexedField(colorField) ? animationConfig.currentTime : null
            },
            getElevation: {
              heightField: this.config.heightField,
              heightScaleType: this.config.heightScale,
              heightRange: visConfig.heightRange,
              currentTime: isIndexedField(heightField) ? animationConfig.currentTime : null
            },
            getLineColor: {
              strokeColor: visConfig.strokeColor,
              strokeColorField: this.config.strokeColorField,
              // @ts-expect-error prop not in LayerConfig
              strokeColorScale: this.config.strokeColorScale,
              // @ts-expect-error prop not in LayerConfig
              strokeColorDomain: this.config.strokeColorDomain,
              // FIXME: Strip out empty arrays from individual color map steps, and replace with `null`, otherwise the layer may show the incorrect color.
              // So far it seems that it uses the previous color chosen in the palette rather than the currently chosen color for the specific custom ordinal value when there are "sparse" color maps.
              // In other words, a color map with "holes" of colors with unassigned field values, which may have been assigned in the past.
              // For example "abc" was green, stored as `["abc"]`. Then "abc" was reassigned to the red color map step, stored as `["abc"]`. Now the green color map step's stored value is `[]`, and the layer will incorrectly still render "abc" in green.
              // Quick patch example:
              // strokeColorRange: visConfig?.strokeColorRange?.colorMap?.map(cm =>
              //   cm[0]?.length === 0 ? [null, cm[1]] : cm
              // ),
              // Note: for regular scales the colorMap in the above patch is undefined and breaks strokeColorRange update trigger.
              strokeColorRange: visConfig.strokeColorRange,
              currentTime: isIndexedField(strokeColorField) ? animationConfig.currentTime : null
            },
            getLineWidth: {
              sizeRange: visConfig.sizeRange,
              strokeWidth: visConfig.strokeWidth,
              sizeField: this.config.sizeField,
              sizeScale: this.config.sizeScale,
              sizeDomain: this.config.sizeDomain,
              currentTime: isIndexedField(sizeField) ? animationConfig.currentTime : null
            },
            getPointRadius: {
              radius: visConfig.radius,
              radiusField: this.config.radiusField,
              radiusScale: this.config.radiusScale,
              radiusDomain: this.config.radiusDomain,
              radiusRange: this.config.radiusRange,
              currentTime: isIndexedField(radiusField) ? animationConfig.currentTime : null
            }
          },
          _subLayerProps: {
            'polygons-stroke': {opacity: visConfig.strokeOpacity},
            'polygons-fill': {
              parameters: {
                cullFace: GL.BACK
              }
            }
          },
          loadOptions: {
            mvt: getLoaderOptions().mvt
          }
        }),
        // hover layer
        ...(hoveredObject
          ? [
              new GeoJsonLayer({
                // @ts-expect-error props not typed?
                ...objectHovered.sourceLayer?.props,
                ...(this.getDefaultHoverLayerProps() as any),
                visible: true,
                wrapLongitude: false,
                data: [hoveredObject],
                getLineColor: DEFAULT_HIGHLIGHT_STROKE_COLOR,
                getFillColor: DEFAULT_HIGHLIGHT_FILL_COLOR,
                getLineWidth: visConfig.strokeWidth + 1,
                lineWidthUnits: 'pixels',
                stroked: true,
                filled: true
              })
            ]
          : [])
      ];

      return layers;
    }
    return [];
  }
}

1	// SPDX-License-Identifier: MIT
2	// Copyright contributors to the kepler.gl project
3
4	import {FeatureCollection, Feature} from 'geojson';
5
6	import {Layer as DeckLayer} from '@deck.gl/core/typed';
7	import {_Tile2DHeader as Tile2DHeader} from '@deck.gl/geo-layers/typed';
8	import {GeoJsonLayer} from '@deck.gl/layers/typed';
9	import {MVTSource, MVTTileSource} from '@loaders.gl/mvt';
10	import {PMTilesSource, PMTilesTileSource} from '@loaders.gl/pmtiles';
11	import GL from '@luma.gl/constants';
12
13	import {notNullorUndefined} from '@kepler.gl/common-utils';
14	import {
15	DatasetType,
16	LAYER_TYPES,
17	RemoteTileFormat,
18	VectorTileDatasetMetadata,
19	SCALE_TYPES,
20	CHANNEL_SCALES,
21	DEFAULT_COLOR_UI,
22	LAYER_VIS_CONFIGS
23	} from '@kepler.gl/constants';
24	import {
25	getTileUrl,
26	getLoaderOptions,
27	KeplerTable as KeplerDataset,
28	Datasets as KeplerDatasets,
29	GpuFilter,
30	VectorTileMetadata
31	} from '@kepler.gl/table';
32	import {
33	AnimationConfig,
34	Field as KeplerField,
35	LayerColorConfig,
36	LayerHeightConfig,
37	Merge,
38	MapState,
39	BindedLayerCallbacks,
40	VisConfigRange,
41	VisConfigNumber,
42	DomainStops
43	} from '@kepler.gl/types';
44	import {DataContainerInterface} from '@kepler.gl/utils';
45
46	import {MVTLayer as CustomMVTLayer} from './mvt-layer';
47	import VectorTileIcon from './vector-tile-icon';
48	import {
49	default as KeplerLayer,
50	LayerBaseConfig,
51	LayerBaseConfigPartial,
52	VisualChannel,
53	VisualChannelDomain,
54	VisualChannelField
55	} from '../base-layer';
56
57	import AbstractTileLayer, {
58	LayerData as CommonLayerData,
59	commonTileVisConfigs,
60	AbstractTileLayerConfig,
61	AbstractTileLayerVisConfigSettings
62	} from './abstract-tile-layer';
63	import TileDataset from './common-tile/tile-dataset';
64	import {
65	isDomainStops,
66	isDomainQuantiles,
67	isIndexedField,
68	getPropertyByZoom
69	} from './common-tile/tile-utils';
70
71	export const DEFAULT_HIGHLIGHT_FILL_COLOR = [252, 242, 26, 150];	13✔
72	export const DEFAULT_HIGHLIGHT_STROKE_COLOR = [252, 242, 26, 255];	13✔
73	export const MAX_CACHE_SIZE_MOBILE = 1; // Minimize caching, visible tiles will always be loaded	13✔
74	export const DEFAULT_STROKE_WIDTH = 1;	13✔
75
76	/**
77	* Type for transformRequest returned parameters.
78	*/
79	export type RequestParameters = {
80	/** The URL to be requested. */
81	url: string;
82	/** Search parameters to be added onto the URL. */
83	searchParams: URLSearchParams;
84	/** Options passed to fetch. */
85	options: RequestInit;
86	};
87
88	// This type seems to be what loaders.gl currently returns for tile content.
89	// Apparently this might be different depending on the loaders version, and for...
90	// reasons we use two different versions of loaders right now.
91	// TODO: The Features[] version should not be needed when we update to a newer
92	// version of Deck.gl and use only one version of loaders
93	type TileContent =
94	\| (FeatureCollection & {shape: 'geojson-table'})
95	\| (Feature[] & {shape: undefined});
96
97	type VectorTile = Tile2DHeader<TileContent>;
98
99	type LayerData = CommonLayerData & {
100	tilesetDataUrl?: string \| null;
101	tileSource: MVTTileSource \| PMTilesTileSource \| null;
102	};
103
104	type VectorTileLayerRenderOptions = Merge<
105	{
106	idx: number;
107	visible: boolean;
108	mapState: MapState;
109	data: any;
110	animationConfig: AnimationConfig;
111	gpuFilter: GpuFilter;
112	layerCallbacks: BindedLayerCallbacks;
113	objectHovered: {
114	index: number;
115	tile: VectorTile;
116	sourceLayer: typeof GeoJsonLayer;
117	};
118	},
119	LayerData
120	>;
121
122	export const vectorTileVisConfigs = {	13✔
123	...commonTileVisConfigs,
124
125	stroked: {
126	...LAYER_VIS_CONFIGS.stroked,
127	defaultValue: false
128	},
129
130	// TODO figure out why strokeColorScale can't be const
131	strokeColorScale: 'strokeColorScale' as any,
132	strokeColorRange: 'strokeColorRange' as const,
133
134	sizeRange: 'strokeWidthRange' as const,
135	strokeWidth: {
136	...LAYER_VIS_CONFIGS.thickness,
137	property: 'strokeWidth',
138	defaultValue: 0.5,
139	allowCustomValue: false
140	},
141
142	radiusScale: 'radiusScale' as any,
143	radiusRange: {
144	...LAYER_VIS_CONFIGS.radiusRange,
145	type: 'number',
146	defaultValue: [0, 1],
147	isRanged: true,
148	range: [0, 1],
149	step: 0.01
150	} as VisConfigRange
151	};
152
153	export type VectorTileLayerConfig = Merge<
154	AbstractTileLayerConfig,
155	{
156	sizeField?: VisualChannelField;
157	sizeScale?: string;
158	sizeDomain?: VisualChannelDomain;
159
160	strokeColorField: VisualChannelField;
161
162	radiusField?: VisualChannelField;
163	radiusScale?: string;
164	radiusDomain?: VisualChannelDomain;
165	radiusRange?: any;
166	}
167	>;
168
169	export type VectorTileLayerVisConfigSettings = Merge<
170	AbstractTileLayerVisConfigSettings,
171	{
172	sizeRange: VisConfigRange;
173	strokeWidth: VisConfigNumber;
174	}
175	>;
176
177	export default class VectorTileLayer extends AbstractTileLayer<VectorTile, Feature[]> {
178	declare config: VectorTileLayerConfig;
179	declare visConfigSettings: VectorTileLayerVisConfigSettings;
180
181	constructor(props: ConstructorParameters<typeof AbstractTileLayer>[0]) {
182	super(props);	27✔
183	this.registerVisConfig(vectorTileVisConfigs);	27✔
184	this.tileDataset = this.initTileDataset();	27✔
185	}
186
187	meta = {};	27✔
188
189	static findDefaultLayerProps(dataset: KeplerDataset): {
190	props: {dataId: string; label?: string; isVisible: boolean}[];
191	} {
192	if (dataset.type !== DatasetType.VECTOR_TILE) {	90!
193	return {props: []};	90✔
194	}
195	return super.findDefaultLayerProps(dataset);	×
196	}
197
198	initTileDataset(): TileDataset<VectorTile, Feature[]> {
199	return new TileDataset({	54✔
200	getTileId: (tile: VectorTile): string => tile.id,	×
201	getIterable: (tile: VectorTile): Feature[] => {
202	if (tile.content) {	×
203	return tile.content.shape === 'geojson-table' ? tile.content.features : tile.content;	×
204	}
205	return [];	×
206	},
207	getRowCount: (features: Feature[]): number => features.length,	×
208	getRowValue: this.accessRowValue
209	});
210	}
211
212	get type() {
NEW 213	return LAYER_TYPES.vectorTile;	×
214	}
215
216	get name(): string {
217	return 'Vector Tile';	27✔
218	}
219
220	get layerIcon(): KeplerLayer['layerIcon'] {
221	return VectorTileIcon;	27✔
222	}
223
224	get supportedDatasetTypes(): DatasetType[] {
225	return [DatasetType.VECTOR_TILE];	×
226	}
227
228	get visualChannels(): Record<string, VisualChannel> {
229	const visualChannels = super.visualChannels;	×
230	return {	×
231	...visualChannels,
232	strokeColor: {
233	property: 'strokeColor',
234	field: 'strokeColorField',
235	scale: 'strokeColorScale',
236	domain: 'strokeColorDomain',
237	range: 'strokeColorRange',
238	key: 'strokeColor',
239	channelScaleType: CHANNEL_SCALES.color,
240	accessor: 'getLineColor',
241	condition: config => config.visConfig.stroked,	×
242	nullValue: visualChannels.color.nullValue,
243	getAttributeValue: config => config.visConfig.strokeColor \|\| config.color	×
244	},
245	size: {
246	property: 'stroke',
247	field: 'sizeField',
248	scale: 'sizeScale',
249	domain: 'sizeDomain',
250	range: 'sizeRange',
251	key: 'size',
252	channelScaleType: CHANNEL_SCALES.size,
253	nullValue: 0,
254	accessor: 'getLineWidth',
255	condition: config => config.visConfig.stroked,	×
256	getAttributeValue: config => config.visConfig.strokeWidth \|\| DEFAULT_STROKE_WIDTH	×
257	},
258	radius: {
259	property: 'radius',
260	field: 'radiusField',
261	scale: 'radiusScale',
262	domain: 'radiusDomain',
263	range: 'radiusRange',
264	key: 'radius',
265	channelScaleType: CHANNEL_SCALES.size,
266	nullValue: 0,
267	getAttributeValue: config => {
268	return config.visConfig.radius \|\| config.radius;	×
269	},
270	accessor: 'getPointRadius',
271	defaultValue: config => config.radius	×
272	}
273	};
274	}
275
276	getDefaultLayerConfig(
277	props: LayerBaseConfigPartial
278	): LayerBaseConfig & Partial<LayerColorConfig & LayerHeightConfig> {
279	const defaultLayerConfig = super.getDefaultLayerConfig(props);	27✔
280	return {	27✔
281	...defaultLayerConfig,
282	colorScale: SCALE_TYPES.quantize,
283
284	strokeColorField: null,
285	strokeColorDomain: [0, 1],
286	strokeColorScale: SCALE_TYPES.quantile,
287	colorUI: {
288	...defaultLayerConfig.colorUI,
289	// @ts-expect-error LayerConfig
290	strokeColorRange: DEFAULT_COLOR_UI
291	},
292
293	radiusField: null,
294	radiusDomain: [0, 1],
295	radiusScale: SCALE_TYPES.linear
296	};
297	}
298
299	getHoverData(
300	object: {properties?: Record<string, Record<string, unknown>>},
301	dataContainer: DataContainerInterface,
302	fields: KeplerField[]
303	): (Record<string, unknown> \| null)[] {
304	return fields.map(f => object.properties?.[f.name] ?? null);	×
305	}
306
307	calculateLayerDomain(
308	dataset: KeplerDataset,
309	visualChannel: VisualChannel
310	): DomainStops \| number[] {
311	const defaultDomain = [0, 1];	×
312
313	const field = this.config[visualChannel.field];	×
314	const scale = this.config[visualChannel.scale];	×
315	if (!field) {	×
316	// if colorField or sizeField were set back to null
317	return defaultDomain;	×
318	}
319	if (scale === SCALE_TYPES.quantile && isDomainQuantiles(field?.filterProps?.domainQuantiles)) {	×
320	return field.filterProps.domainQuantiles;	×
321	}
322	if (isDomainStops(field?.filterProps?.domainStops)) {	×
323	return field.filterProps.domainStops;	×
324	} else if (Array.isArray(field?.filterProps?.domain)) {	×
325	return field.filterProps.domain;	×
326	}
327
328	return defaultDomain;	×
329	}
330
331	getScaleOptions(channelKey: string): string[] {
332	let options = KeplerLayer.prototype.getScaleOptions.call(this, channelKey);	×
333
334	const channel = this.visualChannels.strokeColor;	×
335	const field = this.config[channel.field];	×
336	if (	×
337	!(
338	isDomainQuantiles(field?.filterProps?.domainQuantiles) \|\|	×
339	this.config.visConfig.dynamicColor \|\|
340	// If we've set the scale to quantile, we need to include it - there's a loading
341	// period in which the visConfig isn't set yet, but if we don't return the right
342	// scale type we lose it
343	this.config.colorScale === SCALE_TYPES.quantile
344	)
345	) {
346	options = options.filter(scale => scale !== SCALE_TYPES.quantile);	×
347	}
348
349	return options;	×
350	}
351
352	accessRowValue(
353	field?: KeplerField,
354	indexKey?: number \| null
355	): (field: KeplerField, datum: Feature) => number \| null {
356	// if is indexed field
357	if (isIndexedField(field) && indexKey !== null) {	×
358	const fieldName = indexKey && field?.indexBy?.mappedValue[indexKey];	×
359	if (fieldName) {	×
360	return (f, datum) => {	×
361	if (datum.properties) {	×
362	return datum.properties[fieldName];	×
363	}
364	// TODO debug this with indexed tiled dataset
365	return datum[fieldName];	×
366	};
367	}
368	}
369
370	// default
371	return (f, datum) => {	×
372	if (f && datum.properties) {	×
373	return datum.properties[f.name];	×
374	}
375	// support picking & highlighting
376	return f ? datum[f.fieldIdx] : null;	×
377	};
378	}
379
380	updateLayerMeta(dataset: KeplerDataset, datasets: KeplerDatasets): void {
381	if (dataset.type !== DatasetType.VECTOR_TILE) {	×
382	return;	×
383	}
384
385	const datasetMeta = dataset.metadata as VectorTileMetadata & VectorTileDatasetMetadata;	×
386	this.updateMeta({	×
387	datasetId: dataset.id,
388	datasets,
389	bounds: datasetMeta.bounds
390	});
391	}
392
393	formatLayerData(
394	datasets: KeplerDatasets,
395	oldLayerData: unknown,
396	animationConfig: AnimationConfig
397	): LayerData {
398	const {dataId} = this.config;	×
399	if (!notNullorUndefined(dataId)) {	×
400	return {tileSource: null};	×
401	}
402	const dataset = datasets[dataId];	×
403
404	let tilesetDataUrl: string \| undefined;
405	let tileSource: LayerData['tileSource'] = null;	×
406
407	if (dataset?.type === DatasetType.VECTOR_TILE) {	×
408	const datasetMetadata = dataset.metadata as VectorTileMetadata & VectorTileDatasetMetadata;	×
NEW 409	const remoteTileFormat = datasetMetadata?.remoteTileFormat;	×
NEW 410	if (remoteTileFormat === RemoteTileFormat.MVT) {	×
411	const transformFetch = async (input: RequestInfo \| URL, init?: RequestInit \| undefined) => {	×
412	const requestData: RequestParameters = {	×
413	url: input as string,
414	searchParams: new URLSearchParams(),
415	options: init ?? {}	×
416	};
417
418	return fetch(requestData.url, requestData.options);	×
419	};
420
421	tilesetDataUrl = datasetMetadata?.tilesetDataUrl;	×
422	tileSource = tilesetDataUrl	×
423	? MVTSource.createDataSource(decodeURIComponent(tilesetDataUrl), {
424	mvt: {
425	metadataUrl: datasetMetadata?.tilesetMetadataUrl ?? null,	×
426	loadOptions: {
427	fetch: transformFetch
428	}
429	}
430	})
431	: null;
NEW 432	} else if (remoteTileFormat === RemoteTileFormat.PMTILES) {	×
433	// TODO: to render image pmtiles need to use TileLayer and BitmapLayer (https://github.com/visgl/loaders.gl/blob/master/examples/website/tiles/components/tile-source-layer.ts)
434	tilesetDataUrl = datasetMetadata?.tilesetDataUrl;	×
435	tileSource = tilesetDataUrl ? PMTilesSource.createDataSource(tilesetDataUrl, {}) : null;	×
436	}
437	}
438
439	return {	×
440	...super.formatLayerData(datasets, oldLayerData, animationConfig),
441	tilesetDataUrl: typeof tilesetDataUrl === 'string' ? getTileUrl(tilesetDataUrl) : null,	×
442	tileSource
443	};
444	}
445
446	hasHoveredObject(objectInfo) {
447	if (super.hasHoveredObject(objectInfo)) {	×
448	const features = objectInfo?.tile?.content?.features;	×
449	return features[objectInfo.index];	×
450	}
451	return null;	×
452	}
453
454	renderSubLayers(props: Record<string, any>): DeckLayer \| DeckLayer[] {
455	let {data} = props;	×
456
457	data = data?.shape === 'geojson-table' ? data.features : data;	×
458	if (!data?.length) {	×
459	return [];	×
460	}
461
462	const tile: Tile2DHeader = props.tile;	×
463	const zoom = tile.index.z;	×
464
465	return new GeoJsonLayer({	×
466	...props,
467	data,
468	getFillColor: props.getFillColorByZoom ? props.getFillColor(zoom) : props.getFillColor,	×
469	getElevation: props.getElevationByZoom ? props.getElevation(zoom) : props.getElevation,	×
470	// radius for points
471	pointRadiusScale: props.pointRadiusScale, // props.getPointRadiusScaleByZoom(zoom),
472	pointRadiusUnits: props.pointRadiusUnits,
473	getPointRadius: props.getPointRadius,
474	// For some reason tile Layer reset autoHighlight to false
475	pickable: true,
476	autoHighlight: true,
477	stroked: props.stroked,
478	// wrapLongitude: true causes missing side polygon when extrude is enabled
479	wrapLongitude: false
480	});
481	}
482
483	// generate a deck layer
484	renderLayer(opts: VectorTileLayerRenderOptions): DeckLayer[] {
485	const {mapState, data, animationConfig, gpuFilter, objectHovered, layerCallbacks} = opts;	×
486	const {animation, visConfig} = this.config;	×
487
488	this.setLayerDomain = layerCallbacks.onSetLayerDomain;	×
489
490	const defaultLayerProps = this.getDefaultDeckLayerProps(opts);	×
491	const eleZoomFactor = this.getElevationZoomFactor(mapState);	×
492
493	const transitions = this.config.visConfig.transition	×
494	? {
495	getFillColor: {
496	duration: animationConfig.duration
497	},
498	getElevation: {
499	duration: animationConfig.duration
500	}
501	}
502	: undefined;
503
504	const colorField = this.config.colorField as KeplerField;	×
505	const heightField = this.config.heightField as KeplerField;	×
506	const strokeColorField = this.config.strokeColorField as KeplerField;	×
507	const sizeField = this.config.sizeField as KeplerField;	×
508	const radiusField = this.config.radiusField as KeplerField;	×
509
510	if (data.tileSource) {	×
511	const hoveredObject = this.hasHoveredObject(objectHovered);	×
512
513	const layers = [	×
514	new CustomMVTLayer({
515	...defaultLayerProps,
516	...data,
517	onViewportLoad: this.onViewportLoad,
518	data: data.tilesetDataUrl,
519	getTileData: data.tileSource?.getTileData,
520	tileSource: data.tileSource,
521	getFilterValue: this.getGpuFilterValueAccessor(opts),
522	filterRange: gpuFilter.filterRange,
523	lineWidthUnits: 'pixels',
524
525	binary: false,
526	elevationScale: visConfig.elevationScale * eleZoomFactor,
527	extruded: visConfig.enable3d,
528	stroked: visConfig.stroked,
529
530	// TODO: this is hard coded, design a UI to allow user assigned unique property id
531	// uniqueIdProperty: 'ufid',
532	renderSubLayers: this.renderSubLayers,
533	// when radiusUnits is meter
534	getPointRadiusScaleByZoom: getPropertyByZoom(visConfig.radiusByZoom, visConfig.radius),
535	pointRadiusUnits: visConfig.radiusUnits ? 'pixels' : 'meters',	×
536	pointRadiusScale: radiusField ? visConfig.radius : 1,	×
537
538	pointRadiusMinPixels: 1,
539	autoHighlight: true,
540	highlightColor: DEFAULT_HIGHLIGHT_FILL_COLOR,
541	pickable: true,
542	transitions,
543	updateTriggers: {
544	getFilterValue: {
545	...gpuFilter.filterValueUpdateTriggers,
546	currentTime: animation.enabled ? animationConfig.currentTime : null	×
547	},
548	getFillColor: {
549	color: this.config.color,
550	colorField: this.config.colorField,
551	colorScale: this.config.colorScale,
552	colorDomain: this.config.colorDomain,
553	colorRange: visConfig.colorRange,
554	currentTime: isIndexedField(colorField) ? animationConfig.currentTime : null	×
555	},
556	getElevation: {
557	heightField: this.config.heightField,
558	heightScaleType: this.config.heightScale,
559	heightRange: visConfig.heightRange,
560	currentTime: isIndexedField(heightField) ? animationConfig.currentTime : null	×
561	},
562	getLineColor: {
563	strokeColor: visConfig.strokeColor,
564	strokeColorField: this.config.strokeColorField,
565	// @ts-expect-error prop not in LayerConfig
566	strokeColorScale: this.config.strokeColorScale,
567	// @ts-expect-error prop not in LayerConfig
568	strokeColorDomain: this.config.strokeColorDomain,
569	// FIXME: Strip out empty arrays from individual color map steps, and replace with `null`, otherwise the layer may show the incorrect color.
570	// So far it seems that it uses the previous color chosen in the palette rather than the currently chosen color for the specific custom ordinal value when there are "sparse" color maps.
571	// In other words, a color map with "holes" of colors with unassigned field values, which may have been assigned in the past.
572	// For example "abc" was green, stored as `["abc"]`. Then "abc" was reassigned to the red color map step, stored as `["abc"]`. Now the green color map step's stored value is `[]`, and the layer will incorrectly still render "abc" in green.
573	// Quick patch example:
574	// strokeColorRange: visConfig?.strokeColorRange?.colorMap?.map(cm =>
575	// cm[0]?.length === 0 ? [null, cm[1]] : cm
576	// ),
577	// Note: for regular scales the colorMap in the above patch is undefined and breaks strokeColorRange update trigger.
578	strokeColorRange: visConfig.strokeColorRange,
579	currentTime: isIndexedField(strokeColorField) ? animationConfig.currentTime : null	×
580	},
581	getLineWidth: {
582	sizeRange: visConfig.sizeRange,
583	strokeWidth: visConfig.strokeWidth,
584	sizeField: this.config.sizeField,
585	sizeScale: this.config.sizeScale,
586	sizeDomain: this.config.sizeDomain,
587	currentTime: isIndexedField(sizeField) ? animationConfig.currentTime : null	×
588	},
589	getPointRadius: {
590	radius: visConfig.radius,
591	radiusField: this.config.radiusField,
592	radiusScale: this.config.radiusScale,
593	radiusDomain: this.config.radiusDomain,
594	radiusRange: this.config.radiusRange,
595	currentTime: isIndexedField(radiusField) ? animationConfig.currentTime : null	×
596	}
597	},
598	_subLayerProps: {
599	'polygons-stroke': {opacity: visConfig.strokeOpacity},
600	'polygons-fill': {
601	parameters: {
602	cullFace: GL.BACK
603	}
604	}
605	},
606	loadOptions: {
607	mvt: getLoaderOptions().mvt
608	}
609	}),
610	// hover layer
611	...(hoveredObject	×
612	? [
613	new GeoJsonLayer({
614	// @ts-expect-error props not typed?
615	...objectHovered.sourceLayer?.props,
616	...(this.getDefaultHoverLayerProps() as any),
617	visible: true,
618	wrapLongitude: false,
619	data: [hoveredObject],
620	getLineColor: DEFAULT_HIGHLIGHT_STROKE_COLOR,
621	getFillColor: DEFAULT_HIGHLIGHT_FILL_COLOR,
622	getLineWidth: visConfig.strokeWidth + 1,
623	lineWidthUnits: 'pixels',
624	stroked: true,
625	filled: true
626	})
627	]
628	: [])
629	];
630
631	return layers;	×
632	}
633	return [];	×
634	}
635	}

keplergl / kepler.gl / 12831438227

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