On Jan 11, 11:47 am, somecallmemike <[email protected]> wrote:
> I am trying to loop through a number of encoded polylines and assign a
> GEvent.addlistener that catches a mouseover event and appends some
> html to a div. Unfortunately every span I mouseover gives the result
> of the last span that was in the loop. I have researched it enough to
> understand it has something to do with closures, which is as far as my
> knowledge takes me.
>
> Here is my loop:
Where is your map?
(Did you read the posting guidelines?)
You already know the answer, have you looked at Mike Williams'
tutorial? It has explanations and examples.
-- Larry
>
> GDownloadUrl("network/gen_span_xml.php", function(data) {
> var xml = GXml.parse(data);
> var spans = xml.documentElement.getElementsByTagName("span");
> for (var i = 0; i < spans.length; i++) {
> var span_id = spans[i].getAttribute("id");
> var encoded_span = spans[i].getAttribute("encoded");
> var encoded_levels = spans[i].getAttribute("levels");
> var encoded_zoom_factor =
> spans[i].getAttribute("zoom_factor");
> var encoded_num_levels =
> spans[i].getAttribute("num_levels");
> var encodedPolyline = new GPolyline.fromEncoded({
> color: '#0055ff',
> weight: 4,
> opacity: .5,
> points: encoded_span,
> levels: encoded_levels,
> zoomFactor: encoded_zoom_factor,
> numLevels: encoded_num_levels
> });
> GEvent.addListener(encodedPolyline, 'mouseover',
> function() {
> $("#alertDiv").empty().append(span_id);
> });
> map.addOverlay(encodedPolyline);
> }
> });
>
> Thanks in advance.
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