[Chameleon] Zoom to query - how to set extents in

[William Bronsema]

Hi Dale,

You are on the correct path for sure.  What you need to do is save the map
state back to the session:

$_SESSION['gszCurrentState'] = $oMapSession->saveState();

Just make that call after you are done making changes to your map (i.e.
extent etc.)

Bill

________________________________________________

William A. Bronsema, C.E.T.
Software & Applications Development,
DM Solutions Group Inc.

> -----Original Message-----
> From: chameleon-bounces at lists.maptools.org [mailto:chameleon-
> bounces at lists.maptools.org] On Behalf Of scdyoung at tpg.com.au
> Sent: Tuesday, February 14, 2006 11:41 PM
> To: chameleon at lists.maptools.org
> Subject: [Chameleon] Zoom to query - how to set extents in
> 
> Hi again
> 
> Thanks Bill
> 
> It appears that I am having trouble setting the new extents via the
> $oMapSession->oMap->extents
> method in my query.phtml.  Naively (fingers crossed) I was making the
> assumption that by setting
> the params at this point things would propogate.   This is not the case,
> and  I'm guessing that I need
> to write to the savesessionpath or something along those lines ?  is there
> some other application
> variable I might be able to set, and if so how ? or am I going about this
> the wrong way ? (learning
> quite a bit I might add!)
> 
> 
> Regards
> 
> Dale
> 
> 
> Hi Dale,
> 
> To just refresh the map image without submitting the page, I use a simple
> JavaScript function in my template and call it when necessary:
> 
> function redrawMap()
> {
>     var img = CWCDHTML_GetImage( 'MapLayerDivImg' );
>     img.src = gMapDHTMLURL + "&ts="+Math.random();
> }
> 
> HTH,
> Bill
> 
> ________________________________________________
> 
> William A. Bronsema, C.E.T.
> Software & Applications Development,
> DM Solutions Group Inc.
> 
> > -----Original Message-----
> > From: chameleon-bounces at lists.maptools.org [mailto:chameleon-
> > bounces at lists.maptools.org] On Behalf Of scdyoung at tpg.com.au
> > Sent: Sunday, February 12, 2006 7:44 PM
> > To: chameleon at lists.maptools.org
> > Subject: [Chameleon] Zoom to Query
> >
> > Hi all,
> >
> > I have been attempting to write a query widget that will zoom to the
> > extents of a selected feature (in
> > this case a polygon).
> >
> > Using the 'executeQuery' function from utils I am to isolate the
> required
> > layer and shape indexes,
> > and extract the appropriate shape bounds.  I am then able to set the new
> > extents of $oMapSession-
> > >oMap accordingly, though am unsure as to how I 'refresh' the mapping
> > interface;  note that this is
> > my first attempt at writing my own widget.
> >
> > Any help/direction would be appreciated.
> >
> > Regards
> >
> > Dale
> > _______________________________________________
> > Chameleon mailing list
> > Chameleon at lists.maptools.org
> > http://lists.maptools.org/mailman/listinfo/chameleon
> 
> 
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