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Add Amtrak routes layer

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Chandler Swift 2023-07-03 15:27:18 -05:00
parent 010f28e6d9
commit efe4b7cd92
Signed by: chandlerswift
GPG key ID: A851D929D52FB93F
4 changed files with 41 additions and 0 deletions
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8
layers/amtrak/README.md Normal file
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curl 'https://maps.amtrak.com/rttl/js/RoutesList.json?dataType=json&contentType=application%2Fjson&crossDomain=true&cache=false' --compressed -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0' -H 'Accept: application/json, text/javascript, */*; q=0.01' -H 'Accept-Language: en-US,en;q=0.5' -H 'Accept-Encoding: gzip, deflate, br' -H 'Origin: https://www.amtrak.com' -H 'DNT: 1' -H 'Connection: keep-alive' -H 'Referer: https://www.amtrak.com/' -H 'Sec-Fetch-Dest: empty' -H 'Sec-Fetch-Mode: cors' -H 'Sec-Fetch-Site: same-site' -H 'Pragma: no-cache' -H 'Cache-Control: no-cache'
curl 'https://maps.amtrak.com/services/MapDataService/stations/nationalRoute?routeName=' --compressed -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0' -H 'Accept: application/json, text/javascript, */*; q=0.01' -H 'Accept-Language: en-US,en;q=0.5' -H 'Accept-Encoding: gzip, deflate, br' -H 'Origin: https://www.amtrak.com' -H 'DNT: 1' -H 'Connection: keep-alive' -H 'Referer: https://www.amtrak.com/' -H 'Sec-Fetch-Dest: empty' -H 'Sec-Fetch-Mode: cors' -H 'Sec-Fetch-Site: same-site' -H 'Pragma: no-cache' -H 'Cache-Control: no-cache'
view-source:https://maps.amtrak.com/rttl/js/_$$_666.js
view-source:https://maps.amtrak.com/rttl/js/mapApplication.js
view-source:https://www.amtrak.com/services/maps.trainlocation.html
https://www.amtrak.com/services/maps.trainlocation.html

3
layers/amtrak/get_data.sh Executable file
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#!/bin/sh
curl --silent --output amtrak-data.geojson https://maps.amtrak.com/services/MapDataService/stations/nationalRoute

26
layers/amtrak/layer.js Normal file
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import VectorLayer from 'ol/layer/Vector';
import {Vector as VectorSource} from 'ol/source.js';
import GeoJSON from 'ol/format/GeoJSON.js';
import {Style, Stroke} from 'ol/style.js';
import amtrakURL from '/data/amtrak-data.geojson?url'; // TODO: remove `?url`?
const amtrak_colors = '0,83,126'; // from their website's cookie banner, and other places
const vectorLayer = new VectorLayer({
source: new VectorSource({
url: amtrakURL,
format: new GeoJSON,
}),
style: function(feature, resolution){
return new Style({
stroke: new Stroke({
color: `rgba(${amtrak_colors},${Math.min(1, Math.pow(resolution/10, 1/4))})`,
width: 10/Math.pow(resolution, 1/4),
})
});
},
});
export default vectorLayer;

4
main.js
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@ -4,6 +4,8 @@ import TileLayer from 'ol/layer/Tile';
import OSM from 'ol/source/OSM';
import {fromLonLat} from 'ol/proj.js';
import amtrakLayer from './layers/amtrak/layer.js';
const map = new Map({
target: 'map',
layers: [
@ -16,3 +18,5 @@ const map = new Map({
zoom: 10,
})
});
map.addLayer(amtrakLayer);