[Chameleon] Omitting Layer From Map Template Changes Image Colors

[Paul Spencer]

Bart,

the only time I have seen color corruption like this was related to 
using imagery in 8-bit output formats.  I really think this is a 
mapserver-related bug but I have no idea how you would isolate this as a 
test case since the two pieces (map draw and legend draw) are completely 
isolated ... it doesn't make any sense that they could be somehow 
affecting one-another.  Unless SHOWINLEGEND is somehow a newly 
recognized metadata value in mapserver ... try changing the name to 
something else and see if the problem persists.

Cheers

Paul

Jacob Delfos wrote:
> Bart,
>  
> I have experienced a similar problem, though I am not sure whether it is 
> related to the showing/not showing of a layer. In my case, upgrading to 
> php_mapscript_42 (or higher) fixed it, because I only had it happen in 
> php_mapscript_40.
>  
> regards,
>  
> Jacob
>  
>  
> -----Original Message-----
> From: chameleon-bounces at lists.maptools.org 
> <mailto:chameleon-bounces at lists.maptools.org> 
> [mailto:chameleon-bounces at lists.maptools.org] On Behalf Of Bart Wood
> Sent: 16 June 2005 10:20
> To: chameleon at lists.maptools.org <mailto:chameleon at lists.maptools.org>
> Subject: [Chameleon] Omitting Layer From Map Template Changes Image Colors
>  
> Hello Everyone,
> I've created a layer that I don't want appearing in the legend.  I've
> modified the LAYER in the map file to include a meta-data tag called
> "SHOWINLEGEND".   Then I've modified the legend template to not
> include any layers that have the SHOWINLEGEND tag.  When I do this the
> style image (a small blue dot) changes color in the map.  It goes from
> blue to brown when I zoom out.  When I zoom in the dot goes back to
> blue.  Any ideas out there what is happening?
>  
> I've modified the layers definition to look like this...
>  
> LAYER
>  NAME "Survey"
>  STATUS ON
>  TYPE POINT
>  LABELCACHE FALSE
>  METADATA
>    SHOWINLEGEND "nope"
>  END
>  
>  CLASS
>   NAME "OffshrSrv"
>   MAXSCALE 1999999
>   STYLE
>    COLOR 0 204 0
>    SYMBOL "imgSurveyQueried.gif"
>    MINSIZE 10  
>   END  
>  END
> END
>  
> And the legend template look like this...
>  
> [if name=SHOWINLEGEND oper=isnull]
>   ...  do all the stuff to show the legend info  ...
> [/if]
>  
> _______________________________________________
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> Chameleon at lists.maptools.org <mailto:Chameleon at lists.maptools.org>
> http://lists.maptools.org/mailman/listinfo/chameleon
> <mailto:jacob.delfos at maunsell.com> 
> 
> 
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-- 
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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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