Hi there!
I'm trying to get some coordinates from a database, insert them into a
XML file and them show them on the map, snapped to the nearest road.
The thing is I am having problems because the asynchronous thing.
What's the best option to avoid/step over it?
I read setTimeout is not the best choice, but even that I'm unable to
make work... =(
I'm doing this locally, so there's no link to a website. =/
Here's my code:
// This is the array of locations. It's "hand made" now, but it' will
be dynamic, loaded from the XML file
var points = [];
points[0] = new GLatLng(39.761616,-8.804662);
points[1] = new GLatLng(39.734353,-8.773785);
points[2] = new GLatLng(39.740363,-8.810359);
i=0;
while(i < points.length)
{
alert(i);
if (firstpoint)
{
dirn.loadFromWaypoints([points[i],points[i]],{getPolyline:true});
firstpoint = false;
}
else
{
dirn.loadFromWaypoints([points[i-1],points[i]],{getPolyline:true});
}
GEvent.addListener(dirn,"load", function()
{
// snap to last vertex in the polyline
var n = dirn.getPolyline().getVertexCount();
var p = dirn.getPolyline().getVertex(n-1);
var marker=new GMarker(p);
map.addOverlay(marker);
gmarkers.push(marker);
if (!firstpoint)
{
map.addOverlay(dirn.getPolyline());
gpolys.push(dirn.getPolyline());
}
});
i++;
}
If my only alternative was to use setTimeout, where would I put it?
Which function would it call?
Thanks guys!
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