[Chameleon] Choose layers to display

Chorlton, Lesley Lesley.Chorlton at NRCan-RNCan.gc.ca
Mon Feb 2 17:00:56 EST 2009

Hello Bendouad

Actually our somewhat dated GSC World Mineral Deposits site application does what Bendouad wants and just what Julien-Samuel says by using two legend widgets:  ShowXML_Legend and XML_Themed_Legend, with a few extra legend template files.

Go to http://gdr.nrcan.gc.ca/minres/data_e.php or http://gdr.nrcan.gc.ca/minres/data_f.php

And select the browser-based option.   The select layers uses ShowXML_Legend and when layers ticked of and the map refreshed the legend for the chosen layers shows on the bottom.

As usual, there is always extra work involved in preparing custom map files and templates.  There are probably some extra custom rendering applications used; I am not the genius who set it up.   So it is possible.

Best regards


Dr. Lesley Chorlton, P. Geo.
lesley.chorlton at nrcan-rncan.gc.ca, 613-996-9358
Natural Resources Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8
Ressources naturelles Canada, 601 rue Booth, Ottawa (Ontario) K1A 0E8
Government of Canada / Gouvernement du Canada

-----Original Message-----
From: chameleon-bounces at lists.maptools.org [mailto:chameleon-bounces at lists.maptools.org] On Behalf Of Julien-Samuel Lacroix
Sent: February 2, 2009 15:15
To: prenom nom
Cc: chameleon at lists.maptools.org
Subject: Re: [Chameleon] Choose layers to display


I don't think it would be feasible directly out-of-the-box with Chameleon. You could probably add a metadata in your mapfile and use 2 legend widgets in your application, one for active layers and one for available layers. Or simply make your "available" layers selectable through WMS in the WMSBrowser.

Je ne crois pas que cette foncitonalité est disponible directement dans Chameleon. Vous pourriez probablement ajouter un metadata dans votre mapfile et utiliser 2 LegendTemplate widget, un pour les couches de votre cartes et un pour les couches disponible. Ou simplement rendre vaux couches disponible en WMS dans le WMSBrowser widget.


prenom nom wrote:
> hi,
> Thank you Julien.  But, i have a legend. My aim is to have a unique 
> large mapfile. this mapfile must contain all layers. And, depending on 
> some criteria, i must load some layers and others must be in a list 
> box for an eventual adding. possible or not, please give me a response.
> Merci Julien. Je vous charger que certains layers. les autres (qui 
> n'interesse pas un dit scénario) doivent etre mis à l'ecart, mais 
> laissant toute fois la possibilité de les ajouter après. Mon but est 
> qu'avec un seul grand mapfile j'arrive à visualiser différentes 
> situations. Mon probleme est que tout ça doit etre in fly, surtout ne 
> pas créer de mapfile pour chaque situation ou scénario.
> --
> Bendaoud
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Julien-Samuel Lacroix
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Chameleon at lists.maptools.org

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