[Chameleon] Architectural Advice

[anthony farrant]

Yeah. Nice example. That's more or less what I'm trying to achieve.

I'm playing with dynamic layers for the moment. Inserting code between
the initialize and execute.

$oApp =  new Mapper();
$oApp->registerSkin( 'skins/sample' );
$oApp->CWCInitialize( $szTemplate, $szMapFile  );
if ($action_type == "1") {
    $oApp->addLayer("New",$points,'FF0000','point',4);
}
$oApp->CWCExecute();

where $action_type is a GET variable and $points a coordinate array.

The problem with this solution is that at each refresh of the page (zoom,
update, etc)
it creates a new layer. The layer dissapears too when you refresh the page
without
the action_type in the URL.

What I'm seeking to do is create session layers. Is there anyway to do this?


Thanks for your advice guys,

Anthony



On 4/5/07, Julien-Samuel Lacroix <jlacroix at mapgears.com> wrote:
>
> Hi,
> I the Chameleon samples you have a lot of examples using the existing
> widgets. What you are trying to do is probably what the WMSBrowser
> widget is doing in the OGC sample. Is it possible?
> Julien
>
> anthony farrant wrote:
> > Thanks. I'll try that out, Bart.
> >
> > In the meanwhile I'm trying to implement dynamic layers in Chameleon.
> > Do you know where I can start to find info about this? The doc on the
> WEB
> > site doesn't seem to contain a lot.
> > The layer would be created accroding to user input through a popup form.
> > Possible?
> > I'm pretty much familiar with PHP/Mapscript
> > but not yet with the dynamics of Chameleon. Any links to tutorials are
> > welcome.
> >
> > Regards,
> >
> > Anthony
> >
> >
> >
> > On 4/4/07, *Bart van den Eijnden (OSGIS)* <bartvde at osgis.nl
> > <mailto:bartvde at osgis.nl>> wrote:
> >
> >     If you only use WMS client layers in Chameleon, this should be
> >     possible (if
> >     I understand your problem correctly).
> >
> >     Best regards,
> >     Bart
> >
> >     --
> >     Bart van den Eijnden
> >     OSGIS, Open Source GIS
> >     http://www.osgis.nl
> >
> >
> >     --------- Oorspronkelijk bericht --------
> >     Van: anthony farrant < anthony.k.farrant at gmail.com
> >     <mailto:anthony.k.farrant at gmail.com>>
> >     Naar: chameleon at lists.maptools.org
> >     <mailto:chameleon at lists.maptools.org> <chameleon at lists.maptools.org
> >     <mailto:chameleon at lists.maptools.org>>
> >     Onderwerp: [Chameleon] Architectural Advice
> >     Datum: 04/04/07 06:46
> >
> >      > Hello,I&#39;d like to use chameleon to build our GIS web app but
> >     have to
> >     cope with a major difficulty:Our website is physically and logically
> >     separated from our GIS server runningMapserver and Chameleon
> (different
> >     cities &amp; networks). This implies that every change induced
> >      > by the user has to be tranferred to the GIS server which sends
> >     back the
> >     answer (the map).Until now I have used a custom PHP/Mapscript
> >     application
> >     but I would like to benefit from theChameleon framework to build
> >     nicer and
> >     more functional applications.
> >      > For the moment all the command logic is situated on the web
> >     server which
> >     handles requestsand then sends appropriate data to the GIS server to
> >     build
> >     the map. When the map returnsthe web server updates it&#39;s
> >     internal info
> >     (extent) and presents the map. All the databases
> >      > are situated on the webserver so the GIS is only used for map
> >     generation.
> >     I understand that this would not be possible with Chameleon since it
> >     handles
> >     both commandlogic and map generation. I was wondering if any of you
> >     has had
> >     to deal with such a situation before and if you
> >      > have found a lasting solution for it.CHeers,Anthony
> >      >
> >      >
> >      >
> >      >
> >      >
> >      > _______________________________________________
> >      > Chameleon mailing list
> >      > Chameleon at lists.maptools.org <mailto:Chameleon at lists.maptools.org
> >
> >      > http://lists.maptools.org/mailman/listinfo/chameleon
> >      >
> >
> >
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Chameleon mailing list
> > Chameleon at lists.maptools.org
> > http://lists.maptools.org/mailman/listinfo/chameleon
>
> --
> Julien-Samuel Lacroix
> Mapgears
> http://www.mapgears.com/
>
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