[OpenLayers-Users] getDataExtent() only working on part of data of layer

[Jan Martin]

Hi Andreas,

thanks for your help.

I hope I changed my file right, but unfortunately its not working:

http://mybestprojects.com/data/test5/test5.html

Also I have no clue how to implement Format.GPX::read
There are no results of anybody using it  when googling for it.
Can't be can it?

Jan

On Thu, Jun 11, 2009 at 6:07 PM, Andreas Hocevar <ahocevar at opengeo.org>wrote:

> Hi Jan,
>
> one more thing that came to my mind: are you aware that you are
> working with two layers here? From what you wrote, it seems you think
> that you have one layer lgpx. But in fact you have two, you just use
> the same variable for both.
>
> You could also solve your problem with just one layer, but then you
> would have to use Format.GPX::read to get the features from both urls.
> You would also have to take care to style the features properly (red
> from one url, green from the other).
>
> I guess the way you chose is simpler, you just have to be aware that
> you are working with two layers.
>
> Regards,
> Andreas.
>
> On Thu, Jun 11, 2009 at 5:55 PM, Andreas Hocevar<ahocevar at opengeo.org>
> wrote:
> > Hi Jan,
> >
> > On Thu, Jun 11, 2009 at 5:20 PM, Jan Martin<janmartin3 at googlemail.com>
> wrote:
> >> Hi all,
> >>
> >> right now getDataExtent() only considers the data added LAST (red).
> >> But I need the map to zoom in on ALL data in lgpx (green AND red).
> >>
> >> What's my error?
> >
> > you need to take into account the dataExtent of both layers:
> >
> > var dataExtent;
> > var setExtent = function() {
> >   dataExtent = dataExtent ? this.getDataExtent() :
> > this.getDataExtent().extend(dataExtent);
> >   map.zoomToExtent(dataExtent);
> > }
> > lgpx = new OpenLayers.Layer.GML
> > ("green","separated/20090607172151.gpx",{
> >     projection: new  OpenLayers.Projection("EPSG:4326"),
> >     style: {strokeColor: "green", strokeWidth: 5, strokeOpacity: 0.8},
> >     format: OpenLayers.Format.GPX,});
> > lgpx.events.register("loadend", lgpx, setExtent);
> > map.addLayer(lgpx);
> > lgpx = new OpenLayers.Layer.GML
> > ("red","separated/20090607110550.gpx",{
> >    projection: new  OpenLayers.Projection("EPSG:4326"),
> >     style: {strokeColor: "red", strokeWidth: 5, strokeOpacity: 0.8},
> >     format: OpenLayers.Format.GPX,});
> > lgpx.events.register("loadend", lgpx, setExtent);
> > map.addLayer(lgpx);
> >
> > Regards,
> > Andreas.
>
>
> --
> Andreas Hocevar
> OpenGeo - http://opengeo.org/
> Expert service straight from the developers.
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