[Gist] https://gist.github.com/Hirosaji/a68c85369c9756ca4884ab48d765ea39
Built with blockbuilder.org
Last active
February 19, 2020 02:26
-
-
Save Hirosaji/a68c85369c9756ca4884ab48d765ea39 to your computer and use it in GitHub Desktop.
leaflet - Map on D3.js points
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # leaflet - Map on D3.js points | |
| license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <head> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.7/leaflet.css"/> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.7/leaflet-src.js"></script> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <style> | |
| #mapid { height: 500px; } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="mapid"></div> | |
| <script> | |
| //Leaflet初期設定 | |
| var map = L.map('mapid').setView([36.32, 139.0], 12); | |
| var mapLink = '<a href="http://portal.cyberjapan.jp/help/termsofuse.html">国土地理院 地理院地図 標準地図</a>'; | |
| //Leafletに用意されたsvgを使う | |
| map._initPathRoot(); //ver0.8以降は、L.svg().addTo(map)を使う | |
| //Tile Map Serviceの指定 | |
| L.tileLayer( | |
| 'http://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png', { | |
| attribution: '© ' + mapLink + ' Contributors', | |
| maxZoom: 18, | |
| }).addTo(map); | |
| // svg要素を選択 | |
| var svg = d3.select("#mapid").select("svg"); | |
| var g = svg.append("g"); | |
| d3.json("landprice.geojson", function(point){ | |
| //元データにLeafletのLatLngobjを追加 | |
| point.features.forEach(function(d){ | |
| d.LatLngObj = new L.LatLng(d.geometry.coordinates[1], d.geometry.coordinates[0]); | |
| }); | |
| //サークル要素を追加 | |
| var circle = g.selectAll("circle") | |
| .data(point.features) | |
| .enter() | |
| .append("circle") | |
| .attr({ | |
| "stroke": "black", | |
| "stroke-width": 2, | |
| "opacity": .7, | |
| "fill": "red", | |
| "r": 10 | |
| }); | |
| map.on("viewreset", update); | |
| update(); | |
| function update() { | |
| //サークル要素の位置をアップデート | |
| circle.attr("transform", function(d) { | |
| return "translate("+ | |
| map.latLngToLayerPoint(d.LatLngObj).x +","+ | |
| map.latLngToLayerPoint(d.LatLngObj).y +")"; | |
| }); | |
| } | |
| }); | |
| </script> | |
| </body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment