millerコマンドの解説に使ったサンプルcsv
source: Natural Earth
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
html, body { | |
margin: 0px; | |
padding: 0px; | |
} | |
</style> | |
<body> |
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license: gpl-3.0 |
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license: mit |
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//todo:後で分割する。 | |
import * as d3 from "d3"; | |
import React, { Component } from "react"; | |
export default function D3blackbox(d3render) { | |
return class Blackbox extends Component { | |
componentDidMount() { | |
d3render.call(this); |
高崎市にあるヤマダ電機から、車で5分以内、10分以内、20分以内に到達可能なエリア(到達圏)を算出し、統計局の「小地域(町丁・字等別)男女別人口総数及び世帯総数」と組み合わせて、到達圏ごとの男女年代別人口を計算。
このあたりの計算はすべてQGISを計算し、計算結果をGeoJSONとして出力してleaflet.jsを用いて表示している。
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license: mit |