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@sansumbrella sansumbrella/MapboxMap.css
Last active Sep 27, 2019

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Copy of the Mapbox data-driven-lines sample using React+Hooks
.mapbox-map {
min-height: 100%;
width: 100%;
position: fixed;
top: 0;
left: 0;
}
import React, { useEffect, useRef } from "react";
import mapboxgl from "mapbox-gl";
import "mapbox-gl/dist/mapbox-gl.css";
import "./MapboxMap.css";
export function MapboxMap({ accessToken, styleUrl }) {
const mapContainer = useRef(null);
mapboxgl.accessToken = accessToken;
useEffect(
function initializeMap() {
const container = mapContainer.current;
if (!container) {
return;
}
const map = new mapboxgl.Map({
container,
style: styleUrl,
center: [-122.48383155304096, 37.82882682974591],
zoom: 16
});
map.on("style.load", () => addSourcesAndStyles(map));
},
[mapContainer, styleUrl]
);
return <div className="mapbox-map" ref={mapContainer} />;
}
function addSourcesAndStyles(map) {
// layer copied from https://docs.mapbox.com/mapbox-gl-js/example/data-driven-lines/
map.addLayer({
id: "lines",
type: "line",
source: {
type: "geojson",
data: {
type: "FeatureCollection",
features: [
{
type: "Feature",
properties: {
color: "#F7455D" // red
},
geometry: {
type: "LineString",
coordinates: [
[-122.4833858013153, 37.829607404976734],
[-122.4830961227417, 37.82932776098012],
[-122.4830746650696, 37.82932776098012],
[-122.48218417167662, 37.82889558180985],
[-122.48218417167662, 37.82890193740421],
[-122.48221099376678, 37.82868372835086],
[-122.4822163581848, 37.82868372835086],
[-122.48205006122589, 37.82801003030873]
]
}
},
{
type: "Feature",
properties: {
color: "#33C9EB" // blue
},
geometry: {
type: "LineString",
coordinates: [
[-122.48393028974533, 37.829471820141016],
[-122.48395174741744, 37.82940826466351],
[-122.48395174741744, 37.829412501697064],
[-122.48423874378203, 37.829357420242125],
[-122.48422533273697, 37.829361657278575],
[-122.48459815979002, 37.8293425906126],
[-122.48458743095398, 37.8293447091313],
[-122.4847564101219, 37.82932776098012],
[-122.48474299907684, 37.829331998018276],
[-122.4849334359169, 37.829298101706186],
[-122.48492807149889, 37.82930022022615],
[-122.48509705066681, 37.82920488676767],
[-122.48509168624878, 37.82920912381288],
[-122.48520433902739, 37.82905870855876],
[-122.48519897460936, 37.82905870855876],
[-122.4854403734207, 37.828594749716714],
[-122.48543500900269, 37.82860534241688],
[-122.48571664094925, 37.82808206121068],
[-122.48570591211319, 37.82809689109353],
[-122.4858346581459, 37.82797189627337],
[-122.48582661151886, 37.82797825194729],
[-122.4859634041786, 37.82788503534145],
[-122.48595803976059, 37.82788927246246],
[-122.48605459928514, 37.82786596829394]
]
}
}
]
}
},
paint: {
"line-width": 3,
// Use a get expression (https://docs.mapbox.com/mapbox-gl-js/style-spec/#expressions-get)
// to set the line-color to a feature property value.
"line-color": ["get", "color"]
}
});
}
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