If I put dirn.loadFromWaypoints(points[i], {getPolyline:true}); inside
the loop for each point read, then the GEvent.addListener(dirn,"load",
function()) won't work...
In that case, instead GEvent.addListener(dirn,"load", function()) do I
need to have a function which will be called after all points are
read?
Something like:
var xmlDoc = GXml.parse(file);
var markers = xmlDoc.documentElement.getElementsByTagName("marker");
if(markers.length!=0)
{
for (var i = 0; i < markers.length; i++)
{
// obtain the attribues of each marker
var lat = parseFloat(markers[i].getAttribute("lat"));
var lng = parseFloat(markers[i].getAttribute("lng"));
var point = new GLatLng(lat,lng);
points[i] = point;
bounds.extend(point);
dirn.loadFromWaypoints(points[i], {getPolyline:true});
}
map.setZoom(map.getBoundsZoomLevel(bounds));
map.setCenter(bounds.getCenter());
}
someFunctionToReplaceGEventLoad();
And, inside that function:
for (var i=0; i< dirn.getNumGeocodes(); i++)
{
var coords = dirn.getGeocode(i).Point.coordinates;
var p = new GLatLng(parseFloat(coords[1]), parseFloat(coords[0]));
var marker= createMarker(p);
map.addOverlay(marker);
gmarkers.push(marker);
map.addOverlay(dirn.getPolyline());
gpolys.push(dirn.getPolyline());
}
???
I've tried to do something like this but with no success... =(
On Oct 24, 8:19 pm, Rossko <[EMAIL PROTECTED]> wrote:
> You perform a GXmlHttp to fetch some point co-ordinates.
> This will happen asynchronously; that means the data you have asked
> for will turn up later - much later in computer terms.
> Meantime, javascript execution continues ...
>
> Next you perform a
> dirn.loadFromWaypoints(points, {getPolyline:true});
> where points is an array populated by the previous GXmlHttp section.
>
> Now, have a think; what will the contents of the points array be when
> you set up the loadFromWaypoints call?
> Hint : It is not yet 'later', the data has not come back yet from the
> GXmlHttp call.
>
> If the loadFromWaypoints relies on data from the GXmlHttp call, it
> MUST be placed within the GXmlHttp callback code.
>
> cheers, Ross K
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