hmmm... The issues you specified then could pose a problem for me. I
have more than 500 addresses where I'm reading from an xml file which
you can see I'm traversing using a for loop. So quota may be my
problem. I thought I could call a gdir.load("from: " + fromAddress + "
to: " +
toAddress, { "locale": locale }); in the middle of my for loop with a
listener that would call a function to calculate the distances using
the operator "+=" to keep track of the reoccurring total.
for example this is what I was thinking:
gdir2 = new GDirections();
GEvent.addListener(gdir2, "load",onTotal);
GDownloadUrl("xmldata.xml", function(data) {
var xml = GXml.parse(data);
var markers
=xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i+
+) {
var latlng = new GLatLng
(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers
[i].getAttribute("lng")));
var address = markers
[i].getAttribute("address");
var icontype = parseInt(markers
[i].getAttribute("icontype"));
var customMsg = "<br>"
+address;
************* gdir2.load
("from: " + start + " to: " + address, { "locale": locale });
***********
var marker = createMarker
(latlng, customMsg, icontype, start, address);
map.addOverlay(marker);
}
});
function onTotal(){
var distance = gdir2.getDistance();
var trip = new Array();
trip = distance.split("mi");
totaldistance += parseFloat(trip[0]);
document.getElementById("total").innerHTML =
totalDistance;
}
On Apr 15, 10:59 am, "[email protected]" <[email protected]>
wrote:
> On Apr 15, 8:50 am, loulou2u <[email protected]> wrote:
>
> > I have written a map with several markers (over 100) and if you click
> > on the marker the driving distance and the total round trip miles is
> > written to a <div>. However, is it possible to also gather all the
> > distances in my for loop and get a grand total of distances for all
> > the markers so that I can place it in another <div> that holds the
> > grand total of all points?
>
> Yes. That is just software. How do you intend to select the order
> that you visit the points?
>
> If you post a link to your map, I might look at how you are trying to
> do it.
>
> There are a couple of issues you will need to look out for:
> 1. the GDirections call is asynchronous.
> 2. a single GDirections call only supports up to 25 waypoints.
> 3. the is a quota and speed limit applied to GDirections calls.
>
> -- Larry
>
>
>
> > Thanks.
>
> > Here is some of my code that I wrote using various examples on the
> > web:
>
> > function initialize() {
> > if (GBrowserIsCompatible()) {
> > var map = new GMap2(document.getElementById
> > ("map_canvas"));
> > map.setCenter(new GLatLng(my coordinates are
> > here), 13);
> > gdir = new GDirections();
> > GEvent.addListener(gdir, "load",
> > onGDirectionsLoad);
> > map.addControl(new GSmallMapControl());
> > map.addControl(new GMapTypeControl());
>
> > GDownloadUrl("xmldata.xml", function(data) {
> > var xml = GXml.parse(data);
> > var markers =
> > xml.documentElement.getElementsByTagName("marker");
> > for (var i = 0; i < markers.length; i+
> > +) {
> > var latlng = new GLatLng
> > (parseFloat(markers[i].getAttribute("lat")), parseFloat(markers
> > [i].getAttribute("lng")));
> > var address = markers
> > [i].getAttribute("address");
> > var icontype = parseInt(markers
> > [i].getAttribute("icontype"));
> > var customMsg = "<br>" +
> > address;
> > var marker = createMarker
> > (latlng, customMsg, icontype, start, address);
> > map.addOverlay(marker);
>
> > }
> > });
>
> > }
> > }
>
> > function createMarker(point,html,icontype, start, address) {
> > var marker = new GMarker(point,icons[icontype]);
> > GEvent.addListener(marker, "click", function() {
> > setDirections(start, address);
> > marker.openInfoWindowHtml(html);
> > });
> > return marker;
> > }
>
> > function setDirections(fromAddress, toAddress) {
> > var locale = "en_US";
> > gdir.load("from: " + fromAddress + " to: " +
> > toAddress, { "locale": locale });
> > }
>
> > function onGDirectionsLoad(){
> > var distance = gdir.getDistance().html;
> > var trip = new Array();
> > trip = distance.split("mi");
> > var roundTrip = parseFloat(trip[0]) * 2;
> > document.getElementById("distance").innerHTML =
> > "<h2>Driving Distance</h2><b>One-Way: </b>" + distance +
> > "<br><br><b>Round Trip: </b>" + roundTrip + " mi";
> > }
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