Re: [mapserver-users] HTML Legend with Status Checking...

[Mike Smith <nospam@cnrit.tamu.edu>]

Thank you, but this didn't change a thing.  Actually, let me correct 
that...it had a negative effect because now all my layers show up too, 
even if they are not displayed in the map.  I want only active layers to 
show in the legend and I want only IN-SCALE class symbols to show up in 
the legend, I don't want 4 symbols to show up in the legend for every 
layer that I have which has scale-specific classes...I just don't guess 
I can do that without converting everything over to Mapscript.  X-(

Any other ideas?

Martin, Daniel wrote:

> You probably want a bit mask of 2 in your opt_flag.  Layers with STATUS off
> still show, but layers out of scale don't show.  
> [leg_layer_html opt_flag=2]
>
>
> Per http://mapserver.gis.umn.edu/doc36/html-legend-howto.html :
>
> 1: If set, show layer even if out of scale (default: hide layers out of
> scale). 
> 2: If set, show layer even if status is OFF (default: hide layers with
> STATUS OFF). 
> 4: If set, show layer even if type is QUERY (default: hide layers of TYPE
> QUERY) 
> 8: If set, show layer even if type is ANNOTATION (default: hide layers of
> TYPE ANNOTATION) 
>
> In my experience, opt_flag=2 is the most intuitive.
>
> -Dan
>
>
>
> -----Original Message-----
> From: Mike Smith [mailto:nospam@cnrit.tamu.edu]
> Sent: Monday, September 30, 2002 5:06 PM
> To: mapserver-users@lists.gis.umn.edu
> Subject: [mapserver-users] HTML Legend with Status Checking...
>
>
> Hello,
>
>    I've seen how you can make legends using PHP Mapscript that check to 
> see whether a layer or class is in scale before displaying it in the 
> legend, but no mention of how to do this if I'm not using Mapscript.  I 
> have sub-classed many of my layers so that symbols show up in different 
> sizes depending on how far zoomed in you are.  In other words, I'm using 
> "MINSCALE" and "MAXSCALE" in my classes, but all of my classes show up 
> in the legend and that's really annoying!  I want ONLY the in-scale 
> symbol to show up in the legend as it does in the map...any tips on how 
> to do this without Mapscript?  I see the "if" conditional statements in 
> the HTML Legend How-to, but there's no status of "SCALE" to check with 
> those statements... if I could put an if statement in my legend template 
> that checked whether or not a class or layer was in scale, then I'd be 
> in business...any way to do this?
>
> Thanks!