| Re: Object graphics and real postscript [message #19429] |
Tue, 28 March 2000 00:00 |
noymer
Messages: 65
Registered: June 1999
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Member |
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In article <MPG.1349819a77d14acc989aac@news.frii.com>,
davidf@dfanning.com (David Fanning) wrote:
> The way I do it (on Windows NT) is like this:
>
> printer = Obj_New('IDLgrPrinter')
> ok = Dialog_PrinterSetup(printer)
>
I don't use object graphics (yet). Is there no analog
in object graphics to the direct graphics instructions
such as:
SET_PLOT, 'PS'
DEVICE, XSize=4.75, YSize=2.95, /Inches, /ENCAPSULATED, $
File=foo.eps
!P.FONT=0
> It is *not*, however, encapsulated PostScript.
You can tweak the drivers so that it is.
> My Windows NT Ghostview, however, has the ability to convert
> a PostScript file to an encapsulated PostScript file.
Only if your PS file contains no page breaks.
> I presume
> this is also available in the UNIX version of Ghostscript.
Yes. It can also be done by hand in your favorite editor:
e.g., first three lines of an EPS file produced by IDL
%!PS-Adobe-3.0 EPSF-3.0
%%BoundingBox: 0 0 342 212
%%Title: Graphics produced by IDL
Note that the first line says EPS and the BB is included.
If if if if if if IF there are no pagebreaks, one can convert
PS to EPS by hand. But it is kind of a kludge, so I only do
it in emergencies.
Andrew
noymer@my-deja.com
Sent via Deja.com http://www.deja.com/
Before you buy.
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| Re: Object graphics and real postscript [message #19434 is a reply to message #19429] |
Mon, 27 March 2000 00:00  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Nicolas Decoster (Nicolas.Decoster@noveltis.fr ) writes:
> I'm new in IDL and I am currently trying to figure how I can do
> beautyfull graphs using object graphics. It looks like these objects
> allow to draw almost everything I need. But the bad thing is that I did
> not find how I can export my drawing into a postscript file. In fact
> there is a way to create an EPS (using ClipBoard on UNIX), but the
> result is a bitmap ! I want a real postscript with lines, curves, text,
> etc., in postscript language.
>
> Is there a way to do such a thing ?
The way I do it (on Windows NT) is like this:
printer = Obj_New('IDLgrPrinter')
ok = Dialog_PrinterSetup(printer)
I get a dialog for my Lexmark PostScript printer. One of
the options on the dialog is "Send Output to File". With
that checked, it pulls up another dialog that asks me
what the name of the file should be, and I simply write
to the Printer device. I get a nice PostScript file.
It is *not*, however, encapsulated PostScript.
And, unless I am mistaken, the clipboard object also does
not support encapsulated PostScript, but rather just PostScript
if the PostScript keyword is set on the Draw method.
My Windows NT Ghostview, however, has the ability to convert
a PostScript file to an encapsulated PostScript file. I presume
this is also available in the UNIX version of Ghostscript.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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| Re: Object graphics and real postscript [message #19435 is a reply to message #19434] |
Mon, 27 March 2000 00:00 |
Ben Tupper
Messages: 186
Registered: August 1999
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Senior Member |
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Nicolas Decoster wrote:
> Hi !
>
> I'm new in IDL and I am currently trying to figure how I can do
> beautyfull graphs using object graphics. It looks like these objects
> allow to draw almost everything I need. But the bad thing is that I did
> not find how I can export my drawing into a postscript file. In fact
> there is a way to create an EPS (using ClipBoard on UNIX), but the
> result is a bitmap ! I want a real postscript with lines, curves, text,
> etc., in postscript language.
>
> Is there a way to do such a thing ?
>
>
Hello,
It looks to me like the new version of IDL (5.3) permits the
IDLgrClipboard to generate postscript output and vector/bitmap graphics.
I'm not sure about EPS and vector graphics.
Ben
--
Ben Tupper
Bigelow Laboratory for Ocean Science
tupper@seadas.bigelow.org
pemaquidriver@tidewater.net
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