2c:null 2d:["$","title",null,{"children":"Mapbox Map Maker | Post Graphics | Observable"}] 32:T5a9,map = { const graphic = svg` ` return graphic; }33:T22c9,mbxLogo = svg` `34:[] 30:{"id":"c7fc92141933eede","slug":"mapbox-map-maker","title":"Mapbox Map Maker","thumbnail":"a1fb935ce1e3afad4bbf6421c80ceb102c5430e71a94c5813f400075f6fdc8d0","access_level":"public","create_time":"$D2019-09-06T20:36:00.318Z","update_time":"$D2019-09-06T20:36:00.318Z","view_time":null,"first_public_time":"$D2019-09-06T20:42:54.233Z","has_unpublished_edits":null,"fork":{"id":"b862b67dfe5e2b02","slug":"mapbox-map-maker","title":"Mapbox Map Maker","owner":{"id":"eb234b21118ba2f1","login":"aboutaaron","name":"Aaron Williams"}},"stars":2,"starred":false,"owner":{"type":"team","id":"1d339aa620597475","login":"postgraphics","name":"Post Graphics","avatar_url":"https://avatars-next.observableusercontent.com/b67d24dece79211ce7f1a53fb61ed14f7305ff1a80d336f3fb464f4a9f2fd1e8","tier":"starter_2024"},"version":527,"publish_version":527,"role":null,"authored":false,"authors":[{"type":"individual","id":"6d57c30c903e551e","login":"postgraphics","name":"Post Graphics","avatar_url":"https://avatars-next.observableusercontent.com/b67d24dece79211ce7f1a53fb61ed14f7305ff1a80d336f3fb464f4a9f2fd1e8","tier":null}],"members":[{"type":"individual","id":"6d57c30c903e551e","login":"postgraphics","name":"Post Graphics","avatar_url":"https://avatars-next.observableusercontent.com/b67d24dece79211ce7f1a53fb61ed14f7305ff1a80d336f3fb464f4a9f2fd1e8","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":4,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Mapbox Map Maker","cells":[{"id":0,"value":"md`# Mapbox Map Maker\n\nMake a map using the Mapbox vector tile API.`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":76,"value":"$32","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":312,"value":"DOM.download(await serialize(map), 'map.svg', 'Download as svg')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":341,"value":"md`## Location`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":323,"value":"viewof longitude = text({placeholder: -122.2711, title: 'Longitude'})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":327,"value":"viewof latitude = text({placeholder: 37.8044, title: 'Latitude'})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":306,"value":"md`## Customize`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":349,"value":"viewof height = slider({\n min: 200, \n max: 1048, \n value: 600,\n title: \"Map height (in pixels)\",\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":243,"value":"viewof landColor = color({\n value: \"#fefefe\",\n title: \"Map palette\",\n description: \"Land\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":225,"value":"viewof waterColor = color({\n value: \"#acc8cc\",\n description: \"Water\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":232,"value":"viewof roadColor = color({\n value: \"#a5a5a5\",\n description: \"Roads\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":266,"value":"viewof minor_roads = slider({\n min: 0, \n max: max_road_size, \n value: 0.3,\n precision: 3,\n title: \"Road sizes (in pixels)\", \n description: \"Minor roads\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":273,"value":"viewof tertiary_roads = slider({\n min: 0, \n max: max_road_size, \n value: 0.5,\n precision: 3,\n description: \"Tertiary roads\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":276,"value":"viewof secondary_roads = slider({\n min: 0, \n max: max_road_size, \n value: 0.7,\n precision: 3,\n description: \"Secondary roads\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":287,"value":"viewof primary_roads = slider({\n min: 0, \n max: max_road_size, \n value: 0.9,\n precision: 3,\n description: \"Primary roads\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":293,"value":"viewof motorways = slider({\n min: 0, \n max: max_road_size, \n value: 1.5,\n precision: 3,\n description: \"Motorways\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":297,"value":"viewof motorway_links = slider({\n min: 0, \n max: max_road_size, \n value: 1.15,\n precision: 3,\n description: \"Motorway links\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":299,"value":"viewof rails = slider({\n min: 0, \n max: max_road_size, \n value: 0.51,\n precision: 3,\n description: \"Rails\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":280,"value":"viewof max_road_size = slider({\n min: 0, \n max: 5, \n step: 0.5, \n value: 2, \n title: \"Maximum road size\", \n description: \"The largest road size you want available for your map\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":223,"value":"md`---`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":502,"value":"md`#### Add your Mapbox access token\n\nThis project uses the [Mapbox's vector tile API](https://docs.mapbox.com/vector-tiles/reference/) to render the map imagery. Add your public access token below:`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":505,"value":"mapbox_access_token = `pk.eyJ1IjoiYWJvdXRhYXJvbiIsImEiOiJsRTRpMGJnIn0.aprlJ6wE1JQqBx4EH1lkMQ`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":304,"value":"md`---\n### Configuration`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":79,"value":"isLayer = (feature, layer) => feature.properties.class === layer","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":512,"value":"md`The access token is used below to fetch all the tile information from [Mapbox Streets](https://docs.mapbox.com/vector-tiles/reference/mapbox-streets-v8/).`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":20,"value":"tiles = Promise.all(tile().map(async t => {\n let data = new vt.VectorTile(new Protobuf(await d3.buffer(`https://a.tiles.mapbox.com/v4/mapbox.mapbox-streets-v8/${t.z}/${t.x}/${t.y}.mvt?access_token=${mapbox_access_token}`))).layers\n \n let keys = Object.keys(data)\n t.data = {}\n keys.map(key => {\n let collection = {\n type: \"FeatureCollection\",\n features: []\n }\n\n for (let i = 0; i < data[key].length; i++) {\n let feature = data[key].feature(i).toGeoJSON(t.x, t.y, t.z)\n if (key === 'water') {\n feature.properties['class'] = 'water'\n }\n collection.features.push(feature)\n }\n \n t.data[key] = collection\n })\n \n return t;\n}))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":90,"value":"getLayers = key => {\n const flatten = (arr, depth = 1) => arr.reduce((a, v) => a.concat(depth > 1 && Array.isArray(v) ? flatten(v, depth - 1) : v), [])\n \n return [ ...new Set(\n flatten(\n tiles.map(d => {\n if (d.data[key]) {\n return d.data[key].features.map(d => d.properties.class)\n }\n })\n )\n )\n ]\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":86,"value":"path = d3.geoPath(projection)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":84,"value":"filter = function(d, test) {\n if (!d) return { type: \"FeatureCollection\", features: [] }; \n return { type: \"FeatureCollection\", features: d.features.filter(test) };\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"tile = d3.tile()\n .size([width, height])\n .scale(projection.scale() * 2 * Math.PI)\n .translate(projection([0,0]))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"projection = {\n const lng = +longitude === 0 ? -122.2711 : +longitude\n const lat = +latitude === 0 ? 37.8044 : +latitude\n return d3.geoMercator()\n .center([lng, lat])\n .scale(800000 / (2 * Math.PI))\n .translate([width / 2, height / 2])\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":10,"value":"json = async url => {\n const { features } = await d3.json(url);\n return features;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":5,"value":"d3 = require(\"d3-geo@1\", \"d3-selection@1\", \"d3-fetch@1\", \"d3-tile@0.0\");","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":23,"value":"vt = require('https://bundle.run/@mapbox/vector-tile@1.3.1')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":27,"value":"Protobuf = require('https://bundle.run/pbf@3.1.0')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":4,"value":"import {serialize} from \"@mbostock/saving-svg\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":216,"value":"import {color, number, text, slider} from \"@jashkenas/inputs\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":446,"value":"md`##### Mapbox attribution code\n---`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":492,"value":" attributionHeight = height","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":494,"value":"attributionWidth = width","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":436,"value":"attribution = {\n return svg`\n \n ${mbxLogo}\n \n © Mapbox © OpenStreetMap\n \n `\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":378,"value":"$33","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W34","stdlib":"1"}} 31:"$30:body"