[Chameleon] Layers always on

Mark M fosters4all at beer.com
Wed Nov 10 15:25:10 EST 2004

Hi Ken,

Thanks but no go. I'll explain more.

I use the METADATA flag to remove the layer from the legend as you suggested. Then when I first view the map image, I see all the layers as expected and the legend as wanted. When I then zoom into the map, the legend is still OK However, I only see the layers 
that had been visible and checked on the previous legend. All layers unchecked and all layers hidden were not displayed. But, I want to have all the hidden layers to always display. Can this be done?


----- Original Message -----
From: "Ken Sanderson" <ken at rockies.ca>
To: "'Mark M'" <fosters4all at beer.com>, "'Chameleon List'" <chameleon at lists.maptools.org>
Subject: RE: [Chameleon] Layers always on
Date: Wed, 10 Nov 2004 11:43:02 -0700

> I would put a metadata object on the layers you want hidden, then just
> to a test on if that metadata object is set (isset) and if so don't
> write them to the legend.
> Ken
> -----Original Message-----
> From: chameleon-bounces at lists.maptools.org
> [mailto:chameleon-bounces at lists.maptools.org] On Behalf Of Mark M
> Sent: November 10, 2004 10:39 AM
> To: Chameleon List; WIX Mailing List
> Subject: [Chameleon] Layers always on
> Hi,
> How do I keep a layer always showing on the map but never in the legend?
> I've used the process at
> http://lists.maptools.org/pipermail/chameleon/2004-October/001526.html
> to filter layers. This works for the first image but when I zoom in,
> only layers that are checked are drawn (logically enough). So, layers
> that are hidden from the legend are never seen again. Not good for me.
> I want users to be able to turn on and off some layers only. The other
> layers are always on and are controlled by MINSCALE and MAXSCALE in the
> map file. Anyone know how to do this?
> Mark
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