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Leaflet.js imageoverlay sample no2
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<html> | |
<head> | |
<style> | |
html,body{ | |
margin: 0px; | |
padding: 0px; | |
} | |
#map { | |
width: 100%; | |
height: 100%; | |
} | |
</style> | |
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.css" /> | |
<script src="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.js"></script> | |
</head> | |
<body> | |
<div id="map"></div> | |
<script> | |
var map = L.map('map', { | |
maxZoom: 24, | |
minZoom: 1, | |
crs: L.CRS.Simple | |
}).setView([0, 0], 1); | |
var imageUrl = 'https://farm6.staticflickr.com/5495/9188725689_ac415ed0b5_h.jpg'; | |
var h = 768; | |
var w = 1280; | |
var southWest = [0, w / 5]; | |
var northEast = [h / 5, 0]; | |
var imageBounds = new L.LatLngBounds(southWest, northEast); | |
map.setMaxBounds(new L.LatLngBounds([0, w / 5], [h / 5, 0])); //表示可能範囲 | |
var attributionStr = ''; | |
var radar = L.imageOverlay( | |
imageUrl, | |
imageBounds, { | |
attribution: attributionStr | |
}).addTo(map); | |
map.on('zoomend', changeImg); | |
/** | |
* ズーム倍率によって L.imageOverlay で表示してる画像を切替える | |
*/ | |
function changeImg() { | |
// map.removeLayer(radar); | |
var img = ''; | |
if(map.getZoom() >= 4) { | |
img = 'https://farm9.staticflickr.com/8030/8056224185_abae8e0c15_h.jpg'; | |
} else { | |
img = 'https://farm6.staticflickr.com/5495/9188725689_ac415ed0b5_h.jpg'; | |
} | |
console.log(map.getZoom()); | |
radar.setUrl(img); | |
} | |
</script> | |
</body> | |
</html> |
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