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Created July 4, 2012 16:56
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d3.js circles in leaflet.js
Raw
index.html
<html>
<head>
<title>Testing d3.js in Leaflet.js</title>
<link rel="stylesheet" href="leaflet.css" />
<script type="text/javascript" src="http://d3js.org/d3.v2.min.js?2.9.3"></script>
<script src="http://code.leafletjs.com/leaflet-0.3.1/leaflet.js"></script>
<style type="text/css">
path
{
fill: #E02A2A;
stroke: #fff;
}
</style>
</head>
<body>
<div id="map" style="width: 600px; height: 600px;position:relative"></div>
<script type="text/javascript">
var cloudmadeUrl = 'http://{s}.tile.cloudmade.com/BC9A493B41014CAABB98F0471D759707/997/256/{z}/{x}/{y}.png',
cloudmadeAttribution = 'Map data &copy; 2011 OpenStreetMap contributors, Imagery &copy; 2011 CloudMade',
cloudmade = new L.TileLayer(cloudmadeUrl, {maxZoom: 18, attribution: cloudmadeAttribution});
var map = new L.Map('map', {
center: new L.LatLng( 47.0176,2.3427,6),
zoom: 5,
layers: [cloudmade]
});
var svg = d3.select(map.getPanes().overlayPane).append("svg"),
g = svg.append("g");
d3.json("testing.json", function(collection) {
var bounds = d3.geo.bounds(collection),
path = d3.geo.path().projection(project).pointRadius(function (d) {return d.properties.count/50});
console.warn(path)
var feature = g.selectAll("path")
.data(collection.features)
.enter().append("path");
map.on("viewreset", reset);
reset();
// Reposition the SVG to cover the features.
function reset() {
console.warn(bounds)
var bottomLeft = project(bounds[0]),
topRight = project(bounds[1]);
svg .attr("width", topRight[0] - bottomLeft[0])
.attr("height", bottomLeft[1] - topRight[1])
.style("margin-left", bottomLeft[0] + "px")
.style("margin-top", topRight[1] + "px").attr("transform", "translate(" + -bottomLeft[0] + "," + -topRight[1] + ")");
g .attr("transform", "translate(" + -bottomLeft[0] + "," + -topRight[1] + ")");
feature.attr("d", path)
}
// Use Leaflet to implement a D3 geographic projection.
function project(x) {
var point = map.latLngToLayerPoint(new L.LatLng(x[1], x[0]));
return [point.x, point.y];
}
})
</script>
</body>
</html>
Raw
leaflet.css
/* required styles */
.leaflet-map-pane,
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow,
.leaflet-tile-pane,
.leaflet-overlay-pane,
.leaflet-shadow-pane,
.leaflet-marker-pane,
.leaflet-popup-pane,
.leaflet-overlay-pane svg,
.leaflet-zoom-box,
.leaflet-image-layer { /* TODO optimize classes */
position: absolute;
}
.leaflet-container {
overflow: hidden;
}
.leaflet-tile-pane {
-webkit-transform: translate3d(0,0,0);
}
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow {
-moz-user-select: none;
-webkit-user-select: none;
user-select: none;
}
.leaflet-marker-icon,
.leaflet-marker-shadow {
display: block;
}
.leaflet-clickable {
cursor: pointer;
// stroke: red;
}
.leaflet-container img {
max-width: auto;
}
.leaflet-tile-pane { z-index: 2; }
.leaflet-overlay-pane { z-index: 3; }
.leaflet-shadow-pane { z-index: 4; }
.leaflet-marker-pane { z-index: 5; }
.leaflet-popup-pane { z-index: 6; }
.leaflet-zoom-box {
width: 0;
height: 0;
}
.leaflet-tile {
visibility: hidden;
}
.leaflet-tile-loaded {
visibility: inherit;
}
a.leaflet-active {
outline: 2px solid orange;
}
/* Leaflet controls */
.leaflet-control {
position: relative;
z-index: 7;
}
.leaflet-top,
.leaflet-bottom {
position: absolute;
}
.leaflet-top {
top: 0;
}
.leaflet-right {
right: 0;
}
.leaflet-bottom {
bottom: 0;
}
.leaflet-left {
left: 0;
}
.leaflet-control {
float: left;
clear: both;
}
.leaflet-right .leaflet-control {
float: right;
}
.leaflet-top .leaflet-control {
margin-top: 10px;
}
.leaflet-bottom .leaflet-control {
margin-bottom: 10px;
}
.leaflet-left .leaflet-control {
margin-left: 10px;
}
.leaflet-right .leaflet-control {
margin-right: 10px;
}
.leaflet-control-zoom {
padding: 5px;
background: rgba(0, 0, 0, 0.25);
-moz-border-radius: 7px;
-webkit-border-radius: 7px;
border-radius: 7px;
}
.leaflet-control-zoom a {
display: block;
width: 19px;
height: 19px;
background-position: 50% 50%;
background-repeat: no-repeat;
background-color: rgba(255, 255, 255, 0.75);
-moz-border-radius: 4px;
-webkit-border-radius: 4px;
border-radius: 4px;
}
.leaflet-control-zoom a:hover {
background-color: #fff;
}
.leaflet-big-buttons .leaflet-control-zoom a {
width: 27px;
height: 27px;
}
.leaflet-control-zoom-in {
background-image: url(images/zoom-in.png);
margin-bottom: 5px;
}
.leaflet-control-zoom-out {
background-image: url(images/zoom-out.png);
}
.leaflet-container .leaflet-control-attribution {
margin: 0;
padding: 0 5px;
font: 11px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif;
color: #333;
background-color: rgba(255, 255, 255, 0.7);
-moz-box-shadow: 0 0 7px #ccc;
-webkit-box-shadow: 0 0 7px #ccc;
box-shadow: 0 0 7px #ccc;
}
/* Fade animations */
.leaflet-fade-anim .leaflet-tile {
opacity: 0;
-webkit-transition: opacity 0.2s linear;
-moz-transition: opacity 0.2s linear;
-o-transition: opacity 0.2s linear;
transition: opacity 0.2s linear;
}
.leaflet-fade-anim .leaflet-tile-loaded {
opacity: 1;
}
.leaflet-fade-anim .leaflet-popup {
opacity: 0;
-webkit-transition: opacity 0.2s linear;
-moz-transition: opacity 0.2s linear;
-o-transition: opacity 0.2s linear;
transition: opacity 0.2s linear;
}
.leaflet-fade-anim .leaflet-map-pane .leaflet-popup {
opacity: 1;
}
.leaflet-zoom-anim .leaflet-tile {
-webkit-transition: none;
-moz-transition: none;
-o-transition: none;
transition: none;
}
.leaflet-zoom-anim .leaflet-objects-pane {
visibility: hidden;
}
/* Popup layout */
.leaflet-popup {
position: absolute;
text-align: center;
-webkit-transform: translate3d(0,0,0);
}
.leaflet-popup-content-wrapper {
padding: 1px;
text-align: left;
}
.leaflet-popup-content {
margin: 19px;
}
.leaflet-popup-tip-container {
margin: 0 auto;
width: 40px;
height: 16px;
position: relative;
overflow: hidden;
}
.leaflet-popup-tip {
width: 15px;
height: 15px;
padding: 1px;
margin: -8px auto 0;
-moz-transform: rotate(45deg);
-webkit-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
}
.leaflet-popup-close-button {
position: absolute;
top: 9px;
right: 9px;
width: 10px;
height: 10px;
overflow: hidden;
}
.leaflet-popup-content p {
margin: 18px 0;
}
/* Visual appearance */
.leaflet-container {
background: #ddd;
}
.leaflet-container a {
color: #0078A8;
}
.leaflet-zoom-box {
border: 2px dotted #05f;
background: white;
opacity: 0.5;
}
.leaflet-popup-content-wrapper, .leaflet-popup-tip {
background: white;
box-shadow: 0 1px 10px #888;
-moz-box-shadow: 0 1px 10px #888;
-webkit-box-shadow: 0 1px 14px #999;
}
.leaflet-popup-content-wrapper {
-moz-border-radius: 20px;
-webkit-border-radius: 20px;
border-radius: 20px;
}
.leaflet-popup-content {
font: 12px/1.4 "Helvetica Neue", Arial, Helvetica, sans-serif;
}
.leaflet-popup-close-button {
background: white url(images/popup-close.png);
}
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taxa_json.json
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