comp.lang.idl-pvwave archive: archive » Re: 8-bit Postscript problem (Will IDL and color Postscript *ever* get along?)

Home » Public Forums » archive » Re: 8-bit Postscript problem (Will IDL and color Postscript *ever* get along?)

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: 8-bit Postscript problem (Will IDL and color Postscript *ever* get along?) [message #49261 is a reply to message #49198]

Tue, 11 July 2006 10:31

M-K
Messages: 3
Registered: July 2006

Junior Member

David Fanning wrote:

> Humm. Very strange. I guess I still believe you haven't set the BITS_PER_PIXEL
> keyword correctly in PostScript, even though you write that you have, etc.
> But it is the only thing I can think of that still makes any sense. I would just
> check that DEVICE command again one more time (and perhaps confirm that
> the option got set with a Help, /Device).

Oddly, doing
set_plot, 'ps' & !P.Font=0
DEVICE, BITS_PER_PIXEL=8, COLOR=1, FILE=fnam, $
/ENCAPS, XSIZE=7,YSIZE=4,/INCHES
Help,/DEVICE

confirms 8 bits per pixel; the output is:

Current graphics device: PS
Mode: Portrait, Encapsulated, EPSI Preview Disabled, Color Enabled
Output Color Model: RGB
... { offset, size, preview stuff here, Scale Factor is 1 }
...
Font: Helvetica TrueType Font: <default>
# bits per image pixel: 8
Font Mapping: ...

So somehow the colorbar output is nice, but the TVImage output
is pixelly or not enough colors, despite BITS_PER_PIXEL=8.
Could there be a pixel scaling problem with Postscript?

Thank you again,
-Mark

Report message to a moderator

[Message index]

		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: M-K on Fri, 07 July 2006 11:06
		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: M-K on Fri, 07 July 2006 09:21
		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: David Fanning on Fri, 07 July 2006 05:17
		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: M-K on Tue, 11 July 2006 10:31

Previous Topic:	Reading Binary
Next Topic:	8-bit Postscript problem (Will IDL and color Postscript ever get along?)

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 22:42:27 PDT 2025

Total time taken to generate the page: 0.63974 seconds

		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: M-K on Fri, 07 July 2006 11:06
		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: M-K on Fri, 07 July 2006 09:21
		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: David Fanning on Fri, 07 July 2006 05:17
		Re: 8-bit Postscript problem (Will IDL and color Postscript ever get along?) By: M-K on Tue, 11 July 2006 10:31