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Re: Postscript-problem... :(( [message #10416 is a reply to message #10288] Mon, 24 November 1997 00:00 Go to previous messageGo to previous message
davidf is currently offline  davidf
Messages: 2866
Registered: September 1996
Senior Member
Astrid Kuhr (rew032@isr141.isr.kfa-juelich.de) writes:

> What I heard, not still now tried by myself, if you use
> the object orientated things, it is easier.

Not exactly true. If you use object-oriented graphics
routines you can use the PRINTER device directly. But
you can also take advantage of the PRINTER device with
the normal, direct graphics routines.

> but next problem: no vector postscript is generated.
> instead of this pixel....!!

No, the PRINTER device will draw vectors. It is just
that object graphics are in a true 3D environment, so
that even something simple like a line in a plane has
a 3D component that must be passed around with it. This,
necessarily, slows things down a bit and makes the file
larger.

> and than you get some 20mb or more postscript files....
> good luck for you spooling filesystem and yor printer....

I don't think direct graphics commands sent to the PRINTER
device will generate anything like this. I don't usually
find myself complaining about the speed of PRINTER output,
only about the implementation. I wish the PRINTER device
was more like the PS device for PostScript output. In
particular, I have found it impossible to display any
graphics output that has an image on it in addition to
other graphics commands. This is due to a lack of control
with respect to how graphics are positioned and sized in
the PRINTER device.

Cheers,

David
-----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
E-Mail: davidf@dfanning.com
Phone: 970-221-0438
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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