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Fix map in IE by deferring Vector layer addition to page load (note that deferred script running is _not_ the same as onload), also only add the Vector layer as required, so to save some overhead.

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I've trimmed down the unrequired options on the layer, they're defaulted from the map.
Thanks firefishy for the report.
This commit is contained in:
Thomas Wood 2009-04-19 21:03:41 +00:00
parent 8f8de8deaa
commit c29c7cd56c
2 changed files with 9 additions and 11 deletions
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17
public/javascripts/map.js
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@ -75,16 +75,6 @@ function createMap(divName, options) {
var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
vectors = new OpenLayers.Layer.Vector("Vectors", {
displayInLayerSwitcher: false,
numZoomLevels: numZoomLevels,
maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
maxResolution: 156543,
units: "m",
projection: "EPSG:900913"
});
map.addLayer(vectors);
markers = new OpenLayers.Layer.Markers("Markers", {
displayInLayerSwitcher: false,
numZoomLevels: numZoomLevels,
@ -119,6 +109,13 @@ function addMarkerToMap(position, icon, description) {
}
function addBoxToMap(boxbounds) {
if(!vectors) {
// Be aware that IE requires Vector layers be initialised on page load, and not under deferred script conditions
vectors = new OpenLayers.Layer.Vector("Box Layer", {
displayInLayerSwitcher: false
});
map.addLayer(vectors);
}
var geometry = boxbounds.toGeometry().transform(epsg4326, map.getProjectionObject());
var box = new OpenLayers.Feature.Vector(geometry, {}, {
strokeWidth: 2,