How to center on a point with d3.carto.map.
The centerOn function can take "latlong" coordinates, which are latitude and longitude in XY order, or "scaled" coordinates, which are XY coordinates in the scaled space on the map. You can get latlong from d3.geo.centroid() and scaled from d3.geo.path.centroid().
| path,circle,rect,polygon,ellipse,line { | |
| vector-effect: non-scaling-stroke; | |
| } | |
| svg, canvas { | |
| top: 0; | |
| } | |
| #d3MapZoomBox { | |
| position: absolute; | |
| z-index: 10; | |
| height: 100px; | |
| width: 25px; | |
| top: 10px; | |
| right: 50px; | |
| } | |
| #d3MapZoomBox > button { | |
| height:25px; | |
| width: 25px; | |
| line-height: 25px; | |
| } | |
| .d3MapControlsBox > button { | |
| font-size:22px; | |
| font-weight:900; | |
| border: none; | |
| height:25px; | |
| width:25px; | |
| background: rgba(35,31,32,.85); | |
| color: white; | |
| padding: 0; | |
| cursor: pointer; | |
| } | |
| .d3MapControlsBox > button:hover { | |
| background: black; | |
| } | |
| #d3MapPanBox { | |
| position: absolute; | |
| z-index: 10; | |
| height: 100px; | |
| width: 25px; | |
| top: 60px; | |
| right: 50px; | |
| } | |
| #d3MapPanBox > button { | |
| height:25px; | |
| width: 25px; | |
| line-height: 25px; | |
| } | |
| #d3MapPanBox > button#left { | |
| position: absolute; | |
| left: -25px; | |
| top: 10px; | |
| } | |
| #d3MapPanBox > button#right { | |
| position: absolute; | |
| right: -25px; | |
| top: 10px; | |
| } | |
| #d3MapLayerBox { | |
| position: relative; | |
| z-index: 10; | |
| height: 100px; | |
| width: 120px; | |
| top: 10px; | |
| left: 10px; | |
| overflow: auto; | |
| color: white; | |
| background: rgba(35,31,32,.85); | |
| } | |
| #d3MapLayerBox > div { | |
| margin: 5px; | |
| border: none; | |
| } | |
| #d3MapLayerBox ul { | |
| list-style: none; | |
| padding: 0; | |
| margin: 0; | |
| cursor: pointer; | |
| } | |
| #d3MapLayerBox li { | |
| list-style: none; | |
| padding: 0; | |
| } | |
| #d3MapLayerBox li:hover { | |
| font-weight:700; | |
| } | |
| #d3MapLayerBox li input { | |
| cursor: pointer; | |
| } | |
| div.d3MapModal { | |
| position: absolute; | |
| z-index: 11; | |
| background: rgba(35,31,32,.90); | |
| top: 50px; | |
| left: 50px; | |
| color: white; | |
| max-width: 400px; | |
| } | |
| div.d3MapModalContent { | |
| width:100%; | |
| height: 100%; | |
| overflow: auto; | |
| } | |
| div.d3MapModalContent > p { | |
| padding: 0px 20px; | |
| margin: 5px 0; | |
| } | |
| div.d3MapModalContent > h1 { | |
| padding: 0px 20px; | |
| font-size: 20px; | |
| } | |
| div.d3MapModalArrow { | |
| content: ""; | |
| width: 0; | |
| height: 0; | |
| border-left: 20px solid transparent; | |
| border-right: 20px solid transparent; | |
| border-top: 20px solid rgba(35,31,32,.90); | |
| position: absolute; | |
| bottom: -20px; | |
| left: 33px; | |
| } | |
| #d3MapSVG { | |
| } | |
| rect.minimap-extent { | |
| fill: rgba(200,255,255,0.35); | |
| stroke: black; | |
| stroke-width: 2px; | |
| stroke-dasharray: 5 5; | |
| } | |
| circle.newpoints { | |
| fill: black; | |
| stroke: red; | |
| stroke-width: 2px; | |
| } | |
| path.newfeatures { | |
| fill: steelblue; | |
| fill-opacity: .5; | |
| stroke: pink; | |
| stroke-width: 2px; | |
| } |
| .countrylabel { | |
| font-size: 12px; | |
| color: red; | |
| text-anchor: middle; | |
| pointer-events: none; | |
| font-weight: 900; | |
| } | |
| .wards { | |
| fill: gray; | |
| stroke: gray; | |
| stroke-width: 1px; | |
| } | |
| .countryborders { | |
| fill: rgba(0,0,0,0); | |
| stroke-width: 1px; | |
| stroke: gray; | |
| cursor: pointer; | |
| } | |
| .invisible { | |
| fill: rgba(0,0,0,0); | |
| stroke-width: 0; | |
| stroke: black; | |
| cursor: pointer; | |
| } | |
| .countries { | |
| fill: none; | |
| stroke-width: 1px; | |
| stroke: black; | |
| opacity: 1; | |
| } | |
| .halffilledcountries { | |
| fill: rgba(224,224,209,0.5); | |
| stroke-width: 1px; | |
| stroke: black; | |
| opacity: 1; | |
| } | |
| .filledcountries { | |
| fill: #E0E0D1; | |
| stroke-width: 1px; | |
| stroke: black; | |
| opacity: 1; | |
| } | |
| .francelike { | |
| fill: steelblue; | |
| stroke-width: 2px; | |
| stroke: lightgray; | |
| } | |
| .roads { | |
| stroke: brown; | |
| stroke-width: 1px; | |
| fill: none; | |
| } | |
| .rivers { | |
| stroke: blue; | |
| stroke-width: 2px; | |
| fill: none; | |
| opacity: 1; | |
| } | |
| .thickborders { | |
| stroke: brown; | |
| stroke-width: 2px; | |
| fill: none; | |
| } | |
| circle { | |
| fill: black; | |
| stroke: red; | |
| } | |
| circle.pinkcircle { | |
| fill: pink; | |
| stroke: black; | |
| stroke-width: 1; | |
| opacity: 1 | |
| } | |
| circle.greencircle { | |
| fill: green; | |
| stroke: red; | |
| opacity: 1; | |
| stroke-width: 3; | |
| } | |
| #infoBox { | |
| position: fixed; | |
| z-index: 1; | |
| bottom: 150px; | |
| right: 150px; | |
| background: white; | |
| border: 1px gray dashed; | |
| padding:20px; | |
| width: 200px; | |
| } |
| <html xmlns="http://www.w3.org/1999/xhtml"> | |
| <head> | |
| <title>d3.carto.map - Center on a Point</title> | |
| <meta charset="utf-8" /> | |
| <link type="text/css" rel="stylesheet" href="d3map.css" /> | |
| <link type="text/css" rel="stylesheet" href="example.css" /> | |
| </head> | |
| <style> | |
| html,body { | |
| height: 100%; | |
| width: 100%; | |
| margin: 0; | |
| } | |
| #map { | |
| height: 100%; | |
| width: 100%; | |
| position: absolute; | |
| } | |
| </style> | |
| <script> | |
| function makeSomeMaps() { | |
| map = d3.carto.map(); | |
| d3.select("#map").call(map); | |
| map.addTileLayer("examples.map-zgrqqx0w", "Base", "mapbox", false); | |
| map.centerOn([-0.1275,51.507],"latlong",5000); | |
| map.addTopoJSONLayer("http://bl.ocks.org/emeeks/raw/c970c9ee3e242e90004b/sample_routes.topojson","TopoJSON","roads","svg","all"); | |
| map.addCSVLayer("http://bl.ocks.org/emeeks/raw/c970c9ee3e242e90004b/sample_points.csv","CSV Points","pinkcircle",2,"svg","x","y"); | |
| } | |
| </script> | |
| <body onload="makeSomeMaps()"> | |
| <div id="map"></div> | |
| <footer> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8" type="text/javascript"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js" type="text/javascript"> | |
| </script> | |
| <script src="http://d3js.org/d3.geo.projection.v0.min.js" type="text/javascript"> | |
| </script> | |
| <script src="http://d3js.org/colorbrewer.v1.min.js"></script> | |
| <script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/tile.js" type="text/javascript"> | |
| </script> | |
| <script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/d3.quadtiles.js" type="text/javascript"> | |
| </script> | |
| <script src="http://bl.ocks.org/emeeks/raw/f3105fda25ff785dc5ed/d3.geo.raster.js" type="text/javascript"> | |
| </script> | |
| <script src="https://rawgit.com/emeeks/d3-carto-map/master/d3.carto.map.js" type="text/javascript"> | |
| </script> | |
| </footer> | |
| </body> | |
| </html> |
