Hi,
Perhaps you cannot literally set a colour as transparent in a tiff but for sure
you can define a nodata value and then applications can make nodata pixels
transparent. That is the most normal way to do it with Mapserver and OFFSITE.
I believe that Mapserver does not even care if tiff has a nodata tag set but
you can give whatever value for offsite in a mapfile.
I have not played at all with alpha, but perhaps there is some way to give a
list of pixel values which should be transparent and convert them all to a
suitable alpha channel value.
-Jukka Rahkonen-
Fernando Norte wrote:
Hi Christoph,
I try to understand, how did you set the specific color to transparent in a
TIFF?
For raster you can set the level of transparency/opacity to the image not to a
color.
Att,
Fernando Norte
Desenvolvedor SIGWeb
tel.(31) 2533.9900
cel.(31) 9119.8814
skype: fernandoglobalgeo
[http://globalgeo.com.br/assinaturas/logo.png]
Endereço: Alameda do Ingá, 88, 6º andar, Vale do Sereno
Nova Lima/MG - CEP: 34.000-000
www.globalgeo.com.br<http://www.globalgeo.com.br/>
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2012/5/9 Christoph Schumacher
<[email protected]<mailto:[email protected]>>
Hello everybody,
I have a problem setting up my wms.
I have multiple tiff images that have different colours to be set up as
transparaent.
With the offsite parameter I can only set one colour transparent.
Now my question is: Is there a way to make various colour transparent??
best wishes and thank you very much
christoph
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