trips map

Author: eq-ianecc

src/components/trips-map.js

@@ -0,0 +1,189 @@
+import React, { useState, useEffect } from 'react'
+import PropTypes from 'prop-types'
+
+import {
+  commonProps,
+  commonDefaultProps,
+} from '../shared/map-props'
+
+import { AmbientLight, PointLight, LightingEffect } from '@deck.gl/core'
+import { DeckGL } from '@deck.gl/react'
+import { StaticMap } from 'react-map-gl'
+import { PolygonLayer } from '@deck.gl/layers'
+import { TripsLayer } from '@deck.gl/geo-layers'
+
+
+import { styled, setup } from 'goober'
+
+
+setup(React.createElement)
+
+const MapContainer = styled('div')`
+  height: 100%;
+  width: 100%;
+  position: absolute;
+`
+
+const propTypes = {
+  layers: PropTypes.array,
+  setDimensionsCb: PropTypes.func,
+  setHighlightObj: PropTypes.func,
+  getTooltip: PropTypes.func,
+  getCursor: PropTypes.func,
+  viewStateOverride: PropTypes.object,
+  legend: PropTypes.oneOfType([
+    PropTypes.node,
+    PropTypes.bool,
+  ]),
+  showTooltip: PropTypes.bool,
+  renderTooltip: PropTypes.func,
+  pitch: PropTypes.number,
+}
+
+const DATA_URL = {
+  BUILDINGS:
+    'https://locus-cdn.s3.amazonaws.com/assets/toronto-buildings.json', // eslint-disable-line
+  TRIPS: 'https://locus-cdn.s3.amazonaws.com/assets/toronto-trips.json' // eslint-disable-line
+}
+
+const ambientLight = new AmbientLight({
+  color: [255, 255, 255],
+  intensity: 1.0,
+})
+
+const pointLight = new PointLight({
+  color: [255, 255, 255],
+  intensity: 2.0,
+  position: [-74.05, 40.7, 8000],
+})
+
+const lightingEffect = new LightingEffect({ ambientLight, pointLight })
+
+const material = {
+  ambient: 0.1,
+  diffuse: 0.6,
+  shininess: 32,
+  specularColor: [60, 64, 70],
+}
+
+const DEFAULT_THEME = {
+  buildingColor: [74, 80, 87],
+  trailColor0: [253, 128, 93],
+  trailColor1: [23, 184, 190],
+  material,
+  effects: [lightingEffect],
+}
+
+const INITIAL_VIEW_STATE = {
+  longitude: -79.39,
+  latitude: 43.66,
+  zoom: 13,
+  pitch: 45,
+  bearing: 0,
+}
+
+const landCover = [[[-79.61, 43.53], [-79.18, 43.53], [-79.18, 43.78], [-79.66, 43.78]]]
+
+const defaultProps = {
+  layers: [],
+  setDimensionsCb: () => { },
+  setHighlightObj: () => { },
+  getTooltip: () => { },
+  getCursor: () => { },
+  viewStateOverride: {},
+  legend: undefined,
+  showTooltip: false,
+  renderTooltip: undefined,
+  pitch: 0,
+}
+
+// DeckGL react component
+const TripsMap = ({
+  mapboxApiAccessToken,
+  buildings = DATA_URL.BUILDINGS,
+  trips = DATA_URL.TRIPS,
+  trailLength = 180,
+  initialViewState = INITIAL_VIEW_STATE,
+  theme = DEFAULT_THEME,
+  loopLength = 1800, // unit corresponds to the timestamp in source data
+  animationSpeed = 1,
+}) => {
+
+  const [time, setTime] = useState(0)
+  const [animation] = useState({})
+
+  const animate = () => {
+    setTime(t => (t + animationSpeed) % loopLength)
+    animation.id = window.requestAnimationFrame(animate)
+  }
+
+  useEffect(
+    () => {
+      animation.id = window.requestAnimationFrame(animate)
+      return () => window.cancelAnimationFrame(animation.id)
+    },
+    [animation],
+  )
+
+  const layers = [
+    // This is only needed when using shadow effects
+    new PolygonLayer({
+      id: 'ground',
+      data: landCover,
+      getPolygon: f => f,
+      stroked: false,
+      getFillColor: [0, 0, 0, 0],
+    }),
+    new TripsLayer({
+      id: 'trips',
+      data: trips,
+      getPath: d => d.path,
+      getTimestamps: d => d.timestamps.map(p => p - 1620403200),
+      getColor: d => (d.vendor === 0 ? theme.trailColor0 : theme.trailColor1),
+      opacity: 0.3,
+      widthMinPixels: 2,
+      rounded: true,
+      trailLength,
+      currentTime: time,
+
+      shadowEnabled: false,
+    }),
+    new PolygonLayer({
+      id: 'buildings',
+      data: buildings,
+      extruded: true,
+      wireframe: false,
+      opacity: 0.5,
+      getPolygon: f => f.polygon,
+      getElevation: f => f.height,
+      getFillColor: theme.buildingColor,
+      material: theme.material,
+    }),
+  ]
+
+  return (
+    <MapContainer>
+      <DeckGL
+        layers={layers}
+        effects={theme.effects}
+        initialViewState={initialViewState}
+        controller={true}
+      >
+        <StaticMap reuseMaps mapStyle="mapbox://styles/dilshaneq/ckowvrtv00vol17nvjc2zk30y" preventStyleDiffing={true} mapboxApiAccessToken={mapboxApiAccessToken} />
+      </DeckGL>
+    </MapContainer>
+  )
+}
+
+TripsMap.propTypes = {
+  ...propTypes,
+  ...StaticMap.propTypes,
+  ...commonProps,
+}
+TripsMap.defaultProps = {
+  ...defaultProps,
+  ...StaticMap.defaultProps,
+  ...commonDefaultProps,
+}
+
+export default TripsMap

src/index.js

@@ -5,3 +5,4 @@ export { default as ReportMap } from './components/report-wi-map'
 export { default as POIMapActivePOI } from './components/poi-map-active-poi'
 export { default as QLReportMap } from './components/ql-report-map'
 export { default as GeoCohortMap } from './components/geo-cohort-map'
+export { default as TripsMap } from './components/trips-map'

stories/trips.stories.js

@@ -0,0 +1,14 @@
+/* eslint-disable react/prop-types */
+import React from 'react'
+import { storiesOf } from '@storybook/react'
+import { TripsMap } from '../src'
+
+
+const MAPBOX_ACCESS_TOKEN = process.env.MAPBOX_ACCESS_TOKEN
+
+storiesOf('Trips Map', module)
+  .add('Trips layer', () => (
+    <TripsMap
+      mapboxApiAccessToken={ MAPBOX_ACCESS_TOKEN }
+    />
+  ))