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geojson test
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| license: mit |
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| <!DOCTYPE html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta http-equiv="content-language" content="ja"> | |
| <title>geojson test</title> | |
| <!--d3--> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3-legend.min.js"></script> | |
| <!--leaflet--> | |
| <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.3/leaflet.css" /> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.3/leaflet.js"></script> | |
| <style> | |
| html,body{ | |
| margin: 0px; | |
| padding: 0px; | |
| } | |
| #map { | |
| width: 690px; | |
| height:460px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script src="view.js"></script> | |
| <script> | |
| var jsonUrl = "./floore7.js"; | |
| d3.json(jsonUrl, function (json) { | |
| mapInit(json); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| function mapInit(json){ | |
| geojson = json.features; | |
| //Leaflet初期設定 | |
| map = L.map('map', { | |
| maxZoom: 15, | |
| minZoom: 1, | |
| crs: L.CRS.Simple //(L.CRS.Simpleは緯度経度の代わりにシンプルなXY座標でマップを表示します) | |
| }); | |
| var southWest = new L.LatLng(54.88, 138.48); | |
| var northEast = new L.LatLng(54.88, 138.48); | |
| //var southWest = new L.LatLng(64641, -167786); | |
| //var northEast = new L.LatLng(126779, -147119); | |
| var bounds = new L.LatLngBounds(southWest, northEast); | |
| map.fitBounds(bounds); | |
| //デフォルトズーム | |
| map.setZoom(10); | |
| //Leafletに用意されたsvgを使う | |
| map._initPathRoot(); | |
| // svg要素を選択 | |
| var svg = d3.select("#map").select("svg"); | |
| g = svg.append("g"); | |
| //緯度経度->パスジェネレーター関数作成 | |
| var transform = d3.geo.transform({point: projectPoint}); | |
| var path = d3.geo.path().projection(transform); | |
| var baseMaps = g.selectAll("path.baseMaps") | |
| .data(geojson) | |
| .enter() | |
| .append("path") | |
| .attr("d", path) | |
| .attr({ | |
| "stroke":"gray", | |
| "fill":"none", | |
| }) | |
| ; | |
| map.on("viewreset", update); | |
| update(); | |
| //pathのd属性を更新 | |
| function update() { | |
| baseMaps.attr("d", path); | |
| } | |
| //位置→座標変換 | |
| function projectPoint(x, y) { | |
| var point = map.latLngToLayerPoint(new L.LatLng(y, x)); | |
| this.stream.point(point.x, point.y); | |
| } | |
| } |
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