[Mapserver-users] Transparency values - confusion

[randy james]

Hi

Yes you are right now my polygons are changed, also my
font has changed its dark, like its bold and looks
like it is bleeding or fuzzy around the edges. I'll
stick to 8-bit. :-) Thanks a lot.

Randy

--- Dylan Keon <keon at nacse.org> wrote:
> I'm pretty sure you're not getting 24-bit output
> with this, since you're 
> using IMAGEMODE PC256.  This may be why you're not
> noticing a change in 
> transparency.  Regular 8-bit output defaults to
> PC256.  Try IMAGEMODE 
> RGB in your png24 entry and see if it makes a
> difference.
> 
> See
>
http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?OutputFormat
> for more 
> info on IMAGEMODE.
> 
> --Dylan
> 
> 
> 
> randy james wrote:
> > Hi
> > 
> > Mine is like this:
> > 
> > <!-- MapServer version 3.7 (development)
> OUTPUT=PNG
> > OUTPUT=JPEG OUTPUT=WBMP SUPPORTS=PROJ SUPPORTS=TTF
> > SUPPORTS=WMS_SERVER SUPPORTS=GD2_RGB INPUT=EPPL7
> > INPUT=JPEG INPUT=POSTGIS INPUT=GDAL
> INPUT=SHAPEFILE
> > -->
> > 
> > IMAGETYPE png24
> > 
> >  OUTPUTFORMAT
> >     NAME png24
> >    MIMETYPE "image/png"
> >     DRIVER "GD/png"
> >    IMAGEMODE PC256
> >   END
> > 
> > layer
> >     data "92i_mod"
> >     name 'aoa'
> >     status off
> >     type polygon
> >     transparency 30
> >     # 1 class #none
> >     class
> >     name 'aoa_mod'
> >       color 255 255 0
> >     end
> >   end
> > 
> > Cheers
> > Randy
> > 
> > --- Dylan Keon <keon at nacse.org> wrote:
> > 
> >> > --- Dylan Keon <keon at nacse.org> wrote:
> >> >> I've noticed the same thing in 3.7.  When I
> >>switch
> >> >> between 8-bit and
> >> >> 24-bit output I have to invert my transparency
> >> >> values (i.e., change 25
> >> >> to 75 and vice-versa) to get the same effect.
> >> >
> >>randy james wrote:
> >>
> >>>I have been testing outputformat and switching
> >>
> >>between
> >>
> >>>PNG and PNG24 and never had to change anything.
> >>
> >>Have
> >>
> >>>you been using outputformat?
> >>
> >>Yep, I'm using OUTPUTFORMAT for both.  I can
> toggle
> >>between the 
> >>imagetypes and see the transparency change on a
> >>polygon layer when I 
> >>refresh the map.
> >>
> >>#IMAGETYPE png8
> >>IMAGETYPE png24
> >>
> >>OUTPUTFORMAT
> >>   NAME png8
> >>   DRIVER "GD/PNG"
> >>   MIMETYPE "image/png"
> >>   IMAGEMODE PC256
> >>   FORMATOPTION "INTERLACE=ON"
> >>END
> >>OUTPUTFORMAT
> >>   NAME png24
> >>   DRIVER "GD/PNG"
> >>   MIMETYPE "image/png"
> >>   IMAGEMODE RGB
> >>   FORMATOPTION "INTERLACE=ON"
> >>END
> >>
> >>LAYER
> >>   NAME boundary
> >>   STATUS ON
> >>   TYPE POLYGON
> >>   DATA sevbnd83
> >>   TRANSPARENCY 35
> >>   CLASS
> >>     NAME "Boundary"
> >>     OUTLINECOLOR 110 110 110
> >>     COLOR 243 248 245
> >>   END
> >>END
> >>
> 
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>
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