[Mapserver-users] Q: Dynamic Legends

[Jean-Henry Berevoescu]

Hi,
I was afraid to get this kind of answer, but it seems that you are right
(still hoping I miss something here and a quick way to fix this will
somehow surface unexpectedly :-)

If I'll find something I will share with the list, of course :-)

Thanks,
Jean



Liz Godwin wrote:

>I don't think actually that this is possible, at least not in the
>current release.  
>
>The legend will show all classes that are capable of being drawn,
>regardless of wether they are actually visible or not.  That is to say,
>the opt_flags WILL allow you to specify to include layers/classes that
>are within the scale (set min and max values) and if the layer is being
>drawn (status IN/OFF/DEFAULT).
>
>I have seen postings in the past referring to this, and ways around it,
>but they all involve some mapscript of some sort.
>
>If you do find an easy/rather quick way, be sure to share it with the
>list.  I am sure there are many that would interested in finding a
>solution, I know I am.
>
>Liz Godwin
>
>  
>
>>>>"Matt Doggett" <mdoggett at coas.oregonstate.edu> 01/29/04 11:29AM
>>>>
>>>>        
>>>>
>I believe HTML legends will do the trick. In the legend_template.html
>file you could specify [leg_class_html opt_flag=12] for example. see
>the
>HTML legend How-To for more details about the opt_flag bit mask.
>
>http://mapserver.gis.umn.edu/doc40/html-legend-howto.html 
>
>MD
>
>  
>
>>-----Original Message-----
>>From: mapserver-users-admin at lists.gis.umn.edu
>>    
>>
>[mailto:mapserver-users-
>  
>
>>admin at lists.gis.umn.edu] On Behalf Of Jean-Henry Berevoescu
>>Sent: Wednesday, January 28, 2004 8:12 PM
>>To: mapserver-users at lists.gis.umn.edu 
>>Subject: [Mapserver-users] Q: Dynamic Legends
>>
>>
>>Hi,
>>Is there a way to have the legend dynamically show only the classes
>>    
>>
>of
>a
>  
>
>>layer actually
>>shown in a map (not the whole defined set in the mapfile)?
>>
>>Jean
>>
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>