2b:null 2c:["$","title",null,{"children":"Swiss geodata | Anders | Observable"}] 31:[{"id":"260f8f1b5d210b094a165b7b8dbda62e31be5b03ec1c3dccd584616c0f6d2ecb19dd49765fc8d7002ed6b1a722af4df665954ef947691fa1a80d89adf7c41ee0","href":"https://static.observableusercontent.com/files/260f8f1b5d210b094a165b7b8dbda62e31be5b03ec1c3dccd584616c0f6d2ecb19dd49765fc8d7002ed6b1a722af4df665954ef947691fa1a80d89adf7c41ee0","name":"topo_wgs.json.json","type":"application/json","lastModified":1676562139074.775,"size":1363953}] 2f:{"id":"d80df1ee9c0ef046","slug":"swiss-geodata","title":"Swiss geodata","thumbnail":"e21a3778f9aaabb31d5ea28e8c8f6ddd25cead84fad8f723ca8dba130abab8ed","access_level":"public","create_time":"$D2018-11-25T13:55:34.128Z","update_time":"$D2023-06-12T10:09:29.394Z","view_time":null,"first_public_time":"$D2018-11-25T14:40:14.562Z","fork":false,"stars":3,"starred":false,"owner":{"type":"team","id":"185626bcadc26005","login":"idris-maps","name":"Anders","avatar_url":"https://avatars-next.observableusercontent.com/d976ffbf18d2b8f93ce6f7e9af33d17c450a64656a0b0f89e2a5b3f16cef7aec","tier":"starter_2024"},"version":130,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"37cf327f614a460d","login":"idris-maps","name":"Anders","avatar_url":"https://avatars-next.observableusercontent.com/d976ffbf18d2b8f93ce6f7e9af33d17c450a64656a0b0f89e2a5b3f16cef7aec","tier":null}],"members":[{"type":"individual","id":"37cf327f614a460d","login":"idris-maps","name":"Anders","avatar_url":"https://avatars-next.observableusercontent.com/d976ffbf18d2b8f93ce6f7e9af33d17c450a64656a0b0f89e2a5b3f16cef7aec","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":3,"collection":null,"type":"notebook","body":{"title":"Swiss geodata","cells":[{"id":0,"value":"md`# Swiss geodata`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":55,"value":"md`Source: [Federal statistics](https://www.bfs.admin.ch/bfs/de/home/dienstleistungen/geostat/geodaten-bundesstatistik/administrative-grenzen/generalisierte-gemeindegrenzen.assetdetail.24106754.html)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":107,"value":"html`\n

Type

Simplification

Download

${area}

${simplify}

${saveBtn}

\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":23,"value":"viewof map = {\n const WIDTH = width\n const HEIGHT = WIDTH * .7\n const context = DOM.context2d(WIDTH, HEIGHT)\n \n const [xMin, yMin, xMax, yMax] = topology.bbox\n\n const projection = d3.geoTransform({\n point: function(x, y) {\n this.stream.point((x - xMin) / (xMax - xMin) * WIDTH, HEIGHT - (y - yMin) / (yMax - yMin) * HEIGHT)\n }\n })\n const pathCreator = d3.geoPath(projection, context)\n \n context.beginPath()\n pathCreator(current)\n context.strokeStyle = 'black'\n context.stroke()\n \n return context.canvas\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":123,"value":"

","pinned":false,"hidden":false,"mode":"html","author":"$undefined","summary":"$undefined"},{"id":45,"value":"saveBtn = DOM.download(\n new Blob([JSON.stringify(topojson.feature(simple, simple.objects[selection]))], { type: 'application/json' }),\n `${selection}.json`\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":39,"value":"area = html`\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":33,"value":"simplify = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":41,"value":"selection = Generators.input(area)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":10,"value":"current = {\n const simple = topojson.simplify(topojson.presimplify(topology), minWeight)\n const mesh = topojson.mesh(simple, simple.objects[selection])\n return mesh\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":47,"value":"simple = topojson.simplify(topojson.presimplify(topology), minWeight)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":49,"value":"mesh = topojson.mesh(simple, simple.objects[selection])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":31,"value":"sliderScale = d3.scaleLinear().domain([0, 40]).range([0, 0.001])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":35,"value":"simplification = Generators.input(simplify)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":87,"value":"topology = FileAttachment(\"topo_wgs.json.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":13,"value":"minWeight = sliderScale(simplification)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":4,"value":"d3 = require('d3')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":8,"value":"topojson = require('topojson')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"}],"files":"$W31","stdlib":"1","titling":"auto"}} 30:"$2f:body"