bad output - gxeps and shaded graphs

[Matthias Munnich]

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Hi,

using screenshots  for png output (attached wi.gs script) instead of
printim or gxeps might help. Other than that I am afraid  short of
implementing a new contour shading routing there is not much you can do.

... Matt

etienne wrote:

>Hi,

>

>thanks for the tip. It does work without

>antialiasing, the colors are fine.

>

>However, the text (title axes, etc.) looks pretty ugly

>because the anti-aliassing is turned off. I tried

>using imagemagick convert with +antialiasing, but the

>fonts are not pretty. It's not as bad using gimp with

>the antialiasing turned off. Is there something else

>that can be done?

>

>Thanks,

>Etienne

>

>--- Matthias Munnich <munnich at ATMOS.UCLA.EDU> wrote:

>

> Hi Etienne:
>
> Try disabling anti-aliasing of these GhostScript
> front-ends, e.g.:
>
> gv --noantialias
>
> kghostview: de-select Settings-> Configure
> KGhostView-> General ->
> "Enable anti-aliasing of fonts and images"
>
> If this doesn't help or you ever see such lines on
> EPS print-outs, let
> me know.
>
> ... Matt
>
> PS: There is a _lot_ more to say about these lines.
> Search for
> "horizontal lines" in the GRADSUSR archive at
> http://list.cineca.it/cgi-bin/wa?S1=gradsusr&X=-
>
>
>
> etienne wrote:
>
> >Hi,
>
> >when I use gxeps(or gxps) to ooutput a shaded
>
> graph,
>
> >there are numerous horizontal lines that are added.
> >If I output in color the lines are one of the
>
> colors
>
> >and if I output in B&W the lines are grey. If I use
> >printim to make gifs or pngs the output is fine.
>
> >the command used to make the eps output is
> >'!gxeps -i 'tmpfile' -o 'outfile' -l -2 -c'
>
> >My version of grads is 1.9.4b but I get the same
>
> with
>
> >1.8.
>
> >Strange: the images appear fine with 'ghostview'
>
> under
>
> >IRIX-6.5 or 'gs' but the lines appear with any
>
> other
>
> >software (including kghostview, gimp,gv,display) in
> >IRIX or linux.
>
>
> >I attach some files so you can see my problem.
> >tmp-91.eps straight eps from grads (gxeps), has
>
> lines
>
> >tmp-91.gif straight gif from grads (printim), has
> >lines
> >tmp2-9.gif converted from eps->gif, ok
>
>
> >Thanks,
> >Etienne
>
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>

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- --
======================================================================
Matthias Munnich
UC Los Angeles, IGPP & Dept. of Atmos. and Ocean. Sc.
Ph: +1-310-794 5899; Fax: +1-310-206 3051
GPG: 1024D/1FDC7E16 A739 6A48 7E62 244B 836A  D119 89D6 834E 1FDC 7E16
======================================================================

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