Strange colors behavior

[Sylvain Perrinel]

I understand. Thanks.

Sean Gillies a écrit :
> On Mar 30, 2006, at 12:34 AM, Sylvain Perrinel wrote:
> 
>> This is a multi-part message in MIME format.
>>
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>> Hi list,
>> I have got a map which behave strangely.
>>
>> At full extent without label, the colors are correct. But if I put
>> labels on my map, the colors are strange (pink is grey, orange is
>> yellow, ...).
>>
>> And with labels, if I zoom in, the colors become standard. I display
>> only one layer with classes.
>>
>> I use Mapscript to make the mapfile and Mapserver 4.6.1 to generate the
>> images.
>>
>> Here is the mapfile :
> 
> [snip]
> 
> Sylvain,
> 
> Antialiased TrueType labels will tend to use up all the available colors 
> in a 256 color palette, leaving none left over for following layers. 
> Switching to 24 bit PNG will help, or you can draw dummy layers in the 
> map early in order to get important colors into the palette before the 
> labels are rendered.
> 
> cheers,
> Sean
> 
> ---
> Sean Gillies
> http://zcologia.com
> 


-- 
Sylvain Perrinel
Ministère de l'Agriculture et de la Pêche
SG/SM/SDSI/CERIT
Département d'Information Géographique (DIG)
BP 12668
31326 Castanet Tolosan
Téléphone: 05.61.28.92.76
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