Dear list,
I have got a question to the handling of "empty" getfeatureinfo-results.
The "core" of getfeatureinfo.html (in the examples) is:
var url = wms.getFullRequestString({
REQUEST: "GetFeatureInfo",
EXCEPTIONS: "application/vnd.ogc.se_xml",
BBOX: wms.map.getExtent().toBBOX(),
X: e.xy.x,
Y: e.xy.y,
INFO_FORMAT: 'text/html',
QUERY_LAYERS: wms.params.LAYERS,
WIDTH: wms.map.size.w,
HEIGHT: wms.map.size.h});
OpenLayers.loadURL(url, '', this, setHTML);
OpenLayers.Event.stop(e);
});
function setHTML(response) {
OpenLayers.Util.getElement('nodeList').innerHTML =
response.responseText;
}
It works nice if I click on an existing wms-point.
I wonder how to handle a empty "non-existing-response" (that comes if I click
beside a wms-point).
I try to write a function (new_window(url)) that opens a new window with an
entry "You clicked besides the point" (or, if not, the result of the wms-point).
like :
function setHTML(response,url) {
//"non existing response" -> click besides a point
if (response.responseText.length==1) {
url='http://noresult_url';
new_window(url);
}
//response -> click on a point
else
{
new_window(url);
}
}
But the problem is: I don`t get it to transport the url to the function
"setHTML", so that setHTML works with that ajax-response AND(!) the url.
Has anybody an idea how to solve/handle that?
Thank you very much, Kai
--
Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen:
http://www.gmx.net/de/go/multimessenger01
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