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Leaflet map experiments based on the chloropleth tutorial
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<html> | |
<head> | |
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.5/leaflet.css" /> | |
<!--[if lte IE 8]> | |
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.5/leaflet.ie.css" /> | |
<![endif]--> | |
<script src="http://cdn.leafletjs.com/leaflet-0.5/leaflet.js"></script> | |
<script type="text/javascript" src="ridings.js"></script> | |
<style type="text/css" media="all"> | |
#map { height: 780px; border: 1px solid black; } | |
.info { | |
padding: 10px; | |
font: 16px/18px Arial, Helvetica, sans-serif; | |
background: white; | |
background: rgba(255,255,255,0.8); | |
box-shadow: 0 0 15px rgba(0,0,0,0.2); | |
border-radius: 5px; | |
height: 100px; | |
} | |
.info h4 { | |
margin: 0 0 5px; | |
color: #777; | |
} | |
</style> | |
</head> | |
<body> | |
<div id="map"> | |
</div> | |
</body> | |
<script> | |
var map = L.map('map', {doubleClickZoom:false} ).setView([51.2385, -123.1185], 7); | |
L.tileLayer('http://{s}.tile.cloudmade.com/8df2e4e99eb94de2a136db10bf4e9afa/1796@2x/256/{z}/{x}/{y}.png', { | |
attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="http://cloudmade.com">CloudMade</a>', | |
}).addTo(map); | |
var style = { | |
weight: 2, | |
color: 'black', | |
opacity: 0.2, | |
fillColor: '#fff', | |
fillOpacity: 0.2 | |
}; | |
var styleHighlight = { | |
weight: 2, | |
color: '#666', | |
dashArray: '', | |
fillColor: '#A8D14B', | |
fillOpacity: 0.7 | |
}; | |
var geojson; | |
function highlightFeature(e) { | |
var layer = e.target; | |
layer.setStyle(styleHighlight); | |
info.update(layer.feature.properties); | |
} | |
function resetHighlight(e) { | |
var layer = e.target | |
layer.setStyle(style); | |
info.update(); | |
} | |
function zoomToFeature(e) { | |
map.fitBounds(e.target.getBounds()); | |
} | |
function linkToPage(e) { | |
alert("Link to a page!"); | |
} | |
function onEachFeature(feature, layer) { | |
layer.on({ | |
mouseover: highlightFeature, | |
mouseout: resetHighlight, | |
click: zoomToFeature, | |
dblclick: linkToPage | |
}); | |
} | |
geojson = L.geoJson(ridingData, { | |
style: style, | |
onEachFeature: onEachFeature | |
}).addTo(map); | |
// control that shows state info on hover | |
var info = L.control(); | |
info.onAdd = function (map) { | |
this._div = L.DomUtil.create('div', 'info'); | |
this.update(); | |
return this._div; | |
}; | |
info.update = function (props) { | |
this._div.innerHTML = '<h4>Electoral Districts</h4>' + (props ? | |
'<b>' + props.name + '</b><br /><br />Double-click to read more on this district' | |
: 'Hover over a district for more info'); | |
}; | |
info.addTo(map); | |
</script> | |
</html> |
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