| license: mit |
Here you will find an HTML template for the geo-viz workshop. We'll be adding javascript code to the section between the opening and closing <script></script> tags in the index.html file. There are already some variables there to help us get started with.
Built with blockbuilder.org
forked from clhenrick's block: ischool-geo-viz-00
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset='utf-8' /> | |
| <title>iSchool GeoVisualization Workshop</title> | |
| <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.43.0/mapbox-gl.js'></script> | |
| <link href='https://unpkg.com/mapbox-gl@0.43.0/dist/mapbox-gl.css' rel='stylesheet' /> | |
| <style> | |
| body { margin:0; padding:0; } | |
| #map { position:absolute; top:0; bottom:0; width:100%; } | |
| </style> | |
| </head> | |
| <body> | |
| <!-- this div with an id of "map" will be used to create our map --> | |
| <div id='map'></div> | |
| <script> | |
| // javascript code goes here!!! | |
| // url to our "raw" geo data | |
| var dataURL = "https://raw.githubusercontent.com/clhenrick/geovisualization_workshop_ischool/master/data/nyc_crashes.geojson"; | |
| // url to hexbins | |
| var hexBinURL = "https://gist.githubusercontent.com/clhenrick/5787a12a8bf3b02821839e4f9556d997/raw/f18f34a319380ba471078baec382970dbc64a9ff/processed.json"; | |
| // access token to use with MapboxGL | |
| var accessToken = 'pk.eyJ1IjoiZW5qYWxvdCIsImEiOiIzOTJmMjBiZmI2NGQ2ZjAzODhiMzhiOGI2MTI1YTk4YSJ9.sIOXXU3TPp5dLg_L3cUxhQ'; | |
| //set mapboxGL access token | |
| mapboxgl.accessToken = accessToken; | |
| //instantiate the map object | |
| var map = new mapboxgl.Map({ | |
| container: "map", | |
| style: "mapbox://styles/mapbox/light-v9", | |
| center: [-122.4194, 37.7749], | |
| zoom: 10 | |
| }); | |
| // add map navigation controls | |
| map.addControl(new mapboxgl.NavigationControl()); | |
| var temp = "{\"type\": \"Point\",\"coordinates\": [-122.46809908, 37.78184397]}" | |
| // do stuff on map load | |
| map.on("load", function(){ | |
| //load our data | |
| d3.json("json_dump.json", function(error, data){ | |
| if(error) throw error; | |
| console.log("TEST") | |
| console.log(data); | |
| //add our source | |
| map.addSource("crashes",{ | |
| type: "geojson", | |
| data: data//, | |
| //cluster: true | |
| }); | |
| //add the layer to the map | |
| map.addLayer({ | |
| id: "crashes", | |
| type: "circle", | |
| source: "crashes", | |
| layout: {}, | |
| paint: { | |
| "circle-color": "#0000ff", | |
| "circle-opacity": 0.8, | |
| "circle-radius": { | |
| base: 3, | |
| stops:[ | |
| [12, 2], | |
| [22, 180] | |
| ] | |
| } | |
| } | |
| }); | |
| }); //ends d3.json | |
| // load hexbin data | |
| /*d3.json(hexBinURL, function(error, hexbins){ | |
| if (error) throw error; | |
| console.log(hexbins); | |
| var colorRamp = ['#feebe2','#fcc5c0','#fa9fb5','#f768a1','#dd3497','#ae017e','#7a0177']; | |
| map.addSource("hexGrid",{ | |
| type: "geojson", | |
| data: hexbins | |
| }); | |
| map.addLayer({ | |
| id: "hexGrid", | |
| type: "fill", | |
| source: "hexGrid", | |
| layout: {}, | |
| paint:{ | |
| "fill-color": { | |
| property: "bin", | |
| stops: colorRamp.map(function(d, i){ | |
| return [i, d] | |
| }) | |
| }, | |
| "fill-opacity": 0.5 | |
| } | |
| }); | |
| }); */ | |
| }); //ends maponload | |
| </script> | |
| </body> | |
| </html> |
| { | |
| "type": "Point", | |
| "coordinates": [ | |
| -122.46809908, | |
| 37.78184397 | |
| ], | |
| "type": "Point", | |
| "coordinates": [ | |
| -122.46809908, | |
| 37.78185 | |
| ] | |
| } |