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add utility functions to clamp latitude to +-90.0, and longitude to +-180.0

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Jon Atkins 2013-05-13 01:10:18 +01:00
parent a3b957c967
commit 339c7ec21e
1 changed files with 27 additions and 0 deletions
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27
code/utils_misc.js
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@ -407,3 +407,30 @@ window.addLayerGroup = function(name, layerGroup, defaultDisplay) {
if(isLayerGroupDisplayed(name, defaultDisplay)) map.addLayer(layerGroup);
layerChooser.addOverlay(layerGroup, name);
}
window.clampLat = function(lat) {
if (lat > 90.0)
lat = 90.0;
else if (lat < -90.0)
lat = -90.0;
return lat;
}
window.clampLng = function(lng) {
if (lng > 180.0)
lng = 180.0
else if (lng < -180.0)
lng = -180.0;
return lng;
}
window.clampLatLng = function(latlng) {
return new L.LatLng ( clampLat(latlng.lat), clampLng(latlng.lng) );
}
window.clampLatLngBounds = function(bounds) {
return new L.LatLngBounds ( clampLatLng(bounds.getSouthWest()), clampLatLng(bounds.getNorthEast()) );
}