[Mapserver-users] Q: Dynamic Legends

[Jean-Henry Berevoescu]

What I need is a bit more specific: to hide (in the legend) the symbols 
of the classes
that are not happening to be in the actual map --> i.e. to only show the 
ones that are
there.

Best regards,
Jean


Van Ulden, Joost wrote:

>The dynamic HTML legend will allow you to hide the classnames but still show
>the layer title for inactive layers.  Not sure if this is exactly what you
>need but it may be a start.  Here is a sample:
>
>[leg_layer_html order_metadata=WMS_ORDER visibility_flag=15 opt_flag=15]
><TR> 
><TD>[if name=layer_status oper=neq value=2]<INPUT type=checkbox name="layer"
>value="[leg_layer_name]"
>onClick="mapForm.INPUT_COORD.value='';mapForm.zoomdir.value='0';mapForm.mode
>.value='browse';mapForm.target='_self';mapForm.submit()" [if
>name=layer_status oper=eq value=1]CHECKED[/if]>[/if][metadata
>name=WMS_TITLE] 
></TD>
></TR>
>[/leg_layer_html]
>[leg_class_html visibility_flag=15]
>[/leg_class_html]
>
>Hope this helps!
>
>============================================
>Joost van Ulden
>Programmer/Analyst
>Natural Resources Canada / Ressources naturelles Canada
>Geological Survey of Canada / Commission geologique du Canada
>101 - 605 Robson Street / 101 - 605 rue Robson
>Vancouver, B.C. / Vancouver (C.-B.)
>V6B 5J3
>Office/Bureau:  604.666.7525
>fax/telecopieur: 604.666.1124
>jvanulde at nrcan.gc.ca
>============================================
>
>
>  
>
>>-----Original Message-----
>>From: Jean-Henry Berevoescu [mailto:bjh at globexplorer.com] 
>>Sent: Thursday, January 29, 2004 11:16 AM
>>To: mdoggett at coas.oregonstate.edu
>>Cc: mapserver-users at lists.gis.umn.edu
>>Subject: Re: [Mapserver-users] Q: Dynamic Legends
>>
>>
>>
>>I tried that one and all the possible combinations (and their 
>>sum). Nothing works.
>>
>>Thanks,
>>Jean
>>
>>
>>Matt Doggett wrote:
>>
>>    
>>
>>>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
>>>
>>>_______________________________________________
>>>Mapserver-users mailing list Mapserver-users at lists.gis.umn.edu
>>>http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
>>>   
>>>
>>>      
>>>
>> 
>>
>>    
>>
>
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>  
>