轨迹线路图层（TripsLayer）

示例

示例源码

import React, { useEffect, useRef, useState } from 'react'
import ReactDOM from 'react-dom'
import { MbMap, MbTiandituLayer } from '@mapbox-react/core'
import { MbTripsLayer } from '@mapbox-react/deck-layers'

const App = () => {
  const [mapCenter] = useState([-73.9, 40.7])
  const [zoom, setZoom] = useState(10)
  const [pitch, setPitch] = useState(20)
  const mapInst = useRef<any>()

  const data = 'https://mapbox-web.github.io/mapbox-react/json/trips.json'
  const [width, setWidth] = useState(100)

  const [currentTime, setCurrentTime] = useState(0)
  const loop = 1900
  const animate = (timestamp: number) => {
    setCurrentTime((timestamp / 10) % loop)
    requestAnimationFrame(animate)
  }

  useEffect(() => {
    animate(0)
  }, [])

  return (
    <div className="map-wrapper">
      <MbMap ref={mapInst} center={mapCenter} zoom={zoom} pitch={pitch}>
        <MbTripsLayer
          data={data}
          getWidth={width}
          getPath={(d) => d.path}
          getTimestamps={(d) => d.timestamps}
          trailLength={200}
          currentTime={currentTime}
        />
      </MbMap>
    </div>
  )
}

ReactDOM.render(<App />, document.querySelector('#root'))

API

PROPS

名称	描述	类型	默认值
id	图层Id	string	-
autoHighlight	本属性为true且pickable为true时，则会将鼠标悬浮选中的对象设为高亮	boolean	false
currentTime	当前时间	number	0
data	图层源数据	string / IndexAny / AnyArr / Promise<any>	''
getColor	颜色信息	string / AnyFunc / number[]	black
getTimestamps	时间片信息	AnyFunc	-
getPath	路径信息	AnyFunc	object => object.path
getWidth	宽度信息	number / AnyNumberFunc	100
highlightColor	要与高亮对象原始颜色进行混合(blend)的颜色值	string / number[]	[255, 255, 128, 1]
highlightedObjectIndex	高亮元素序号	number	-1
miterLimit	rounded为false时生效	number	4
capRounded	-	boolean	false
jointRounded	-	boolean	false
opacity	透明度	number	1
pickable	图层是否会响应鼠标事件，若为false，则组件不会emit鼠标相关事件	boolean	false
show	是否显示	boolean	true
trailLength	-	number	120
widthMaxPixels	-	number	Number.MAX_SAFE_INTEGER
widthMinPixels	-	number	0
widthScale	-	number	1
widthUnits	-	string（pixels / meters）	meters

EVENTS

名称	描述	参数
onCreated	初始化完成事件	-
onMouseMove	-	{ object: any; coordinates: mapboxgl.LngLat; pixel: [number, number] }
onMouseLeave	-	-
onClick	-	{ object: any; coordinates: mapboxgl.LngLat; pixel: [number, number] }

METHODS

名称	描述	定义