I'm here again with mi newbie questions. I've been dealing with this issue for
a long time and I can't fix it no matter how hard I try.
I need to make OL set an initial coordinates and zoom so when I open the
browser the map stars in some specific part of the world.
I've done it perfectly with an example doing this:
var options = {
minResolution: "auto",
minExtent: new OpenLayers.Bounds(-1, -1, 1, 1),
maxResolution: "auto",
maxExtent: new OpenLayers.Bounds(-180, -90, 180, 90)
};
map = new OpenLayers.Map( 'map' , options);
layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0";, {layers: 'basic'});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(-73, 3), 3);
And it works just the way I want, but when I do this with my map:
var options = {
minResolution: "auto",
minExtent: new OpenLayers.Bounds(-1, -1, 1, 1),
maxResolution: "auto",
maxExtent: new OpenLayers.Bounds(-180, -90, 180, 90)
};
var map = new OpenLayers.Map( 'map' , options);
var request = OpenLayers.Request.GET(
{url:
"dir/smms/wms.php?VERSION=1.1.1&REQUEST=GetCapabilities&SERVICE=WMS",
success: function(response){
var XMLformat = new
OpenLayers.Format.XML();
var xml =
XMLformat.read(response.responseText);
var CAPformat = new
OpenLayers.Format.WMSCapabilities();
var cap = CAPformat.read(xml);
for (var i=0;
i<cap.capability.layers.length; i++) {
layer =
cap.capability.layers[i];
layers_array[i] = new OpenLayers.Layer.WMS( layer.name,
"dir/smms/wms.php",
{'layers': layer.name, format:
"image/png"}
);
map.addLayer(layers_array[i]);
}
},
failure: function(response){
alert(response.status);
alert("GetCapabilities failed");
}
});
map.setCenter(new OpenLayers.LonLat(-73, 3), 3);
IT DOESN'T WORK, I get the error : maxExtent is null. What can I do??? I hope
somebody can help me.
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