> I have a group of points (latitude, longitude) and I want to move a
> "marker" along these points. I am doing the following:

> // I call a remote-method
> public void onSuccess(Object result) {
>          // LatLng is a class with latitude, longitude attributes
>          LatLng[] latlng = (LatLng[])result;

>          points = new GLatLng[latlng.length];

>          // clear any previous overlays
>          gmap.clearOverlays();

>          for(int i = 0; i < points.length; i++) {
>              gmap.removeOverlay(marker);

>              points[i] = new
> GLatLng(latlng[i].getLatitude(),

> latlng[i].getLongitude());

>              marker = new GMarker(points[i]);
>              gmap.addOverlay(marker);

>         } // end for

> } // end onSuccess

> I can only see the "marker" at the first position (first point). If I
> move the statement "gmap.removeOverlay(marker)" after
> "gmap.addOverlay(marker)", I don't see any marker which is natural.

> If I don't clear the overlays or remove the marker, I see a group of
> markers  each of them is located at a point. This means that I am
> successfully bringing the points from the servlet. The points are
> there.

> Is there any suggestion on how to make 1 marker move along these
> points?

> Thank you,

> Blaise

> Thanks for the help, now I understand the problem. However I am using
> GWT to work with google maps. So I had to refer to the GWT Timer class
> in order to wait between changes. I am still having a problem. Here is
> my code:

> public void onSuccess(Object result) {
>                LatLng[] latlng = (LatLng[])result;

>                points = new GLatLng[latlng.length];

>                gmap.clearOverlays();

>                for(int i = 0; i < points.length; i++) {

>                        points[i] = new GLatLng(latlng[i].getLatitude(),
> latlng[i].getLongitude());

>                }
>                marker = new GMarker(points[0]);
>                gmap.addOverlay(marker);

>                for(int i = 1; i < points.length; i++){
>                                  nextFrame(points[i]);
>                }

> } // end onSuccess

> private void nextFrame(final GLatLng point) {
>          Timer timer = new Timer() {
>                  public void run() {
>                          marker.setPoint(point);
>                  }
>          };
>          timer.schedule(250);

> } // end method nextFrame

> I only see the marker at the first point. The marker waits for 250
> milliseconds and then directly jumps to the last point instead of
> moving to the next point and so on.

> Anyone can explain why is this happening? And if possible points to a
> possible solution using GWT?

> Thank you in advance,

> --Blaise

> I will put in my standard plug for the gwt-google-apis maps bindings that
> are compatible with GWT 1.5 athttp://code.google.com/p/gwt-google-apis.

> Go to the download page and select 'All downloads' then 'Search' to find the
> r290 release, which is the latest milestore for use with GWT 1.5.

> Regards,
> -Eric.

> On Fri, Jul 4, 2008 at 11:25 AM, Blaise <JdeambuleMor...@gmail.com> wrote:

> > Thanks for the help, now I understand the problem. However I am using
> > GWT to work with google maps. So I had to refer to the GWT Timer class
> > in order to wait between changes. I am still having a problem. Here is
> > my code:

> > public void onSuccess(Object result) {
> >                LatLng[] latlng = (LatLng[])result;

> >                points = new GLatLng[latlng.length];

> >                gmap.clearOverlays();

> >                for(int i = 0; i < points.length; i++) {

> >                        points[i] = new GLatLng(latlng[i].getLatitude(),
> > latlng[i].getLongitude());

> >                }
> >                marker = new GMarker(points[0]);
> >                gmap.addOverlay(marker);

> >                for(int i = 1; i < points.length; i++){
> >                                  nextFrame(points[i]);
> >                }

> > } // end onSuccess

> > private void nextFrame(final GLatLng point) {
> >          Timer timer = new Timer() {
> >                  public void run() {
> >                          marker.setPoint(point);
> >                  }
> >          };
> >          timer.schedule(250);

> > } // end method nextFrame

> > I only see the marker at the first point. The marker waits for 250
> > milliseconds and then directly jumps to the last point instead of
> > moving to the next point and so on.

> > Anyone can explain why is this happening? And if possible points to a
> > possible solution using GWT?

> > Thank you in advance,

> > --Blaise

> --
> Eric Z. Ayers - GWT Team - Atlanta, GA USAhttp://code.google.com/webtoolkit/