30:T7c9,{ switch (lang) { case '中文': return md` 基於 [us-map](https://observablehq.com/@d3/u-s-map), 這是一個用墨卡托投影法現成投影過的地圖，為了可以快速出地圖。資料來源是台灣內政部公布的資料，用一個自動的流程產生 TopoJSON 用一個 1:10,000 的比例。 [開源專案](https://github.com/dkaoster/taiwan-atlas) ## 這個怎麼用？這些 TopoJSON 檔案可以讓你很快速的製作一些數位地圖。這裡有可以參考的 [畫地圖的教學](https://medium.com/@mbostock/command-line-cartography-part-1-897aa8f8ca2c) 。 ## 什麼是 MercatorTW？ MercatorTW 是一個客製化給台灣的一個墨卡托投影法。而且，MercatorTW 把台灣的外島（金門，連江，澎湖）移到一個比較適合地圖呈現的位置。這個是一個 d3-geo 的投影法規格，可以這樣用： \`\`\` import mercatorTw from 'taiwan-atlas'; \`\`\` ` case 'English': return md` Based on [us-map](https://observablehq.com/@d3/u-s-map), This is a pre-projected map in Mercator Taiwan (a cylindrical projection) for fast rendering. Data is sourced from Taiwan's Ministry of the Interior and automatically processed to TopoJSON at a scale of 1:10,000. [Github](https://github.com/dkaoster/taiwan-atlas) ## What is this for? This collection of TopoJSON files allows you to quickly use Taiwan's map in web graphics and other places. For more information on how to use TopoJSON, see the [command line cartography](https://medium.com/@mbostock/command-line-cartography-part-1-897aa8f8ca2c) tutorials. ## What is MercatorTW? MercatorTW is a custom, mercator based projection for Taiwan and Kinmen, Lienchiang, and Penghu. Additionally, MercatorTW translates the locations of Taiwan's outer islands in order to provide a more readable map. This is a d3-geo projection that is exported from this library and can be used as follows: \`\`\` import mercatorTw from 'taiwan-atlas'; \`\`\` ` } }31:[] 2e:{"title":"Taiwan Map TopoJSON","cells":[{"id":16,"value":"{\n switch (lang) {\n case '中文':\n return md`# 台灣地圖 TopoJSON`\n case 'English':\n return md`# Taiwan Map TopoJSON`\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":10,"value":"viewof lang = select({\n title: \"Read in\",\n options: [\"English\", \"中文\"]\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":0,"value":"$30","pinned":false,"hidden":false,"mode":"ojs"},{"id":49,"value":"map = html``","pinned":false,"hidden":false,"mode":"ojs"},{"id":101,"value":"md`---`","pinned":false,"hidden":false,"mode":"ojs"},{"id":6,"value":"import { select } from \"@jashkenas/inputs\"","pinned":false,"hidden":false,"mode":"ojs"},{"id":38,"value":"tw = d3.json('https://unpkg.com/taiwan-atlas@2021.9.20/villages-mercator-10t.json')","pinned":false,"hidden":false,"mode":"ojs"},{"id":30,"value":"path = d3.geoPath()","pinned":false,"hidden":false,"mode":"ojs"},{"id":26,"value":"topojson = require(\"topojson-client@3\")","pinned":false,"hidden":false,"mode":"ojs"},{"id":23,"value":"d3 = require('d3');","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W31","stdlib":"1","titling":"auto"}