HDTenEightyP/NetNews huggingface dataset:
From: wrp@pslsrv1.gvl.unisys.com (Bill Pringle)
Subject: Re: Selective Printing
Organization: Paramax Systems, Ivyland, PA
Date: Fri, 22 Jan 1993 02:10:50 GMT

In article <1993Jan20.030501.13068@cucs5.cs.cuhk.hk> mklai@ie.cuhk.hk (Edmund M K Lai) writes:
>Are there any public domain software that allows the user to 
>print only selected pages from a large postscript file?
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
You can try my pspages.  It will let you print any set of pages,
as well as even or odd.  It will also print them in reverse order
if you ask it nicely. :^)
============================================================================
Bill Pringle                      Software Tools
Paramax Corporation               Voice: (215)443-7500 X4023
Internet: wrp@ivy.paramax.com     UUCP: ...!uunet!mimsy!widener!gvls1!wrp%ivy
Newsgroups: comp.lang.postscript
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: Hexagonal Pattern
Organization: Purdue University
Date: Mon, 25 Jan 1993 17:32:14 GMT

In article <ARTHUR.93Jan25122827@lurch.turing.ac.uk> arthur@turing.ac.uk  
(Arthur van Hoff) writes:
> Here is a simple PdB program (the compiled PostScript is also
> included) that draws an amazing hexagonal pattern resembling
> that of the human retina.

Wow, that is neat.  I haven't messed with PdB yet (I'm
pretty proficient the old-fashioned way :-) ), but I do
plan to.

Question: can you make it preface your file with a
bounding box so it looks like a good EPS document?  How
about DSC in general?  If it would do that, it'd make
incorporating your PdB programs into drawing programs
and such much easier.  Ease is the point, afterall. :-)

ab
From: rajesh@mse.ogi.edu (Rajesh Dighde)
Newsgroups: comp.lang.postscript
Subject: HOW TO PRINT TROFF GENERATED PSC FILES IN LANDSCAPE MODE
Date: 22 Jan 93 01:37:32 GMT
Article-I.D.: ogicse.48936
Distribution: usa
Organization: Oregon Graduate Institute, Material Science & Engineering

Hello everyone,

This is the first posting on this group from a "non computers"
guy so bear with me for any silly/not-making-sense parlance.

I have a question regarding printing postscript files
generated using the troff typesetter in "LANDSCAPE" mode.

How can I program the postscript file so that the output
will be in landscape mode.  Specifically I want to print
some tables generated by troff typesetter.

Does any one have any pointers/suggestions
on this?  And please explain in not too-technical jargon
and in a step by step manner.  

Thanking you in advance

Rajesh

p.s.  I have tried going through FAQ but couldnot make
anything out of it
From: rab@ariel.ucs.unimelb.EDU.AU (Richard Alan Brown)
Newsgroups: comp.lang.postscript
Subject: Matrix tt200 colour printer
Date: 27 Jan 1993 11:00:24 +1100
Organization: School of Physics, University of Melbourne
Distribution: world
NNTP-Posting-Host: ariel.ucs.unimelb.edu.au

We have a colour printer (a Matrix 'tt200') and I'd like to print out colour
PostScript on it. Has anyone had any experience with this combination?

Thanks

Andrew Morton                     | E-mail: ajm@tauon.ph.unimelb.EDU.AU
School of Physics                 | Phone : +61 3 344 5081
University of Melbourne           | Fax   : +61 3 347 4783
Parkville Victoria AUSTRALIA 3052 | Telex : AA35185
Newsgroups: comp.lang.postscript
From: filipi@cebaf9.cebaf.gov (Adrian Thomas Filipi-Martin)
Subject: Is there a PostScript Code Beautifier?
Reply-To: adrian@cs.wm.edu
Organization: CEBAF (Continuous Electron Beam Accelerator Facility)
Date: Mon, 25 Jan 1993 18:19:59 GMT

--

Hi,
	As the subject says, "Is there a PostScript Code Beautifier?" I would 
like to be able to reformat computer generated code to make it more human 
readable. 

	If there isn't one. Is there any standard way that people like to 
fomat their code? I may wirte asimple one myself, if necessary.

Thanks,
  Adrian
----------------------------------+--------------------------------------------
adrian@cs.wm.edu          ---->>>>| Support you local programmer,
adrian@cebafi.cebaf.gov     --->>>| STOP Software Patent Abuses NOW!
Member: The League for        -->>| membership info at prep.ai.mit.edu:/pub/lpf
       Programming Freedom      ->| print "join.ps" for an application
----------------------------------+--------------------------------------------
From: censwm@cend3c7.caledonia.hw.ac.uk (Stuart W Munn)
Newsgroups: comp.lang.postscript
Subject: World MAPs
Date: 28 Jan 93 12:45:52 GMT
Organization: Department of Computer Science, Heriot-Watt University, Scotland

Does anyone know of a source in Aobe Illustrator88 EPS, or TIFF, PCX formats of World MAPS? I want to include some in a document, but cant find anything suitable.

-- 
=========================================================================
Stuart Munn		DOD# 0717
Heriot-Watt University                  "The sky is BLACK . . .
Edinburgh                                therefore GOD, he is a St Mirren
Scotland, EH14 4AS                       supporter!!!"
031 451-3265
031 451-3261 FAX                        God may have a Harley . . .
E-Mail censwm@UK.AC.HW.CLUST            But the Pope rides a Guzzi! 
=========================================================================
From: ah395@cleveland.Freenet.Edu (Jeffrey T. Hansen)
Newsgroups: comp.lang.postscript
Subject: Poster/Tiler
Date: 21 Jan 1993 14:44:12 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: ah395@cleveland.Freenet.Edu (Jeffrey T. Hansen)
NNTP-Posting-Host: slc10.ins.cwru.edu


I've tried the poster.c program that was posted here previously,
and it's fine in what it does, but I've got a reverse problem
that I'm hoping to solve.  We've got a Laserjet II NTX, which gives
us a 8" x 10 1/2" printing area, and I produce drawings that are
30" x 42".  I'd like to be able to take a drawing, and have the
printer break it into tiles like poster, but have the tile move about
the drawing rather than have the drawing enlarged from a small 
area.  

Any hints ?

The important things for me would be keeping the original scale,
and line thickness, and taping it together for in house quality 
checking, before we send it out for the final printing.  It would
save us thirty bucks a plot!

-- 
ah395@cleveland.freenet.edu
Jeffrey T. Hansen
Not affiliated with Case Western Reserve University

Newsgroups: comp.lang.postscript,comp.periphs.printers,comp.sources.wanted
From: mcclung@cae1-gw.nwc.navy.mil (Scott McClung)
Subject: Re: Postscript to HPGL
Summary: Time to power up that flamethrower.
Keywords: HPGL postscript plotter
Organization: Science Applications International Corporation
Date: Mon, 25 Jan 1993 19:56:46 GMT

In article <4825@vidiot.UUCP> brown@vidiot.UUCP (Vidiot) writes:
>You didn't mention why you would want to do such a thing.  HPGL has nowhere
>near the power of PostScript.  There are no fonts, etc.

Oh, I'm sorry.  I didn't realize my motives were important.

Well, Vidiot, let's suppose I happen to have an HP pen plotter, for the sake
of argument, that needs HPGL as input.  Also, for laughs, let's suppose I
need to output D-size maps, and not, let's say, pretty PS fonts on 8.5x11
or 11x17 paper.

(Hmm, a problem.  I'll post, and see if I can get some clues from the net 
folks.  Maybe, if I'm real lucky, Vidiot will post, and enlighten me.)

>Personally I believe that trying to put PostScript onto a HPGL device is a
>big step backward.  If you have a SS2, you should have a PostScript printer.

Well, we do, a couple in fact.  Thank you for your obvious concern, though.
Unfortunately, neither of them support D-size output.  I have yet to work
with a PS printer that does.  Imagine that.  Ah, but if I convert our
PostScript to HPGL, then I can use it to drive our HP pen plotter.
Problem solved.

Later.
-- 
Scott McClung - SAIC
mcclung@archimedes.chinalake.navy.mil
(setq *disclaimer* "I speak only for myself")
From: brown@ftms.UUCP (Vidiot)
Newsgroups: comp.lang.postscript
Subject: Re: SUMMARY: How can I tell if a PS file is in color?
Date: 22 Jan 93 17:12:28 GMT
Reply-To: brown@ftms.UUCP (Vidiot)
Organization: Vidiot's Other Hangout

In article <1993Jan21.143627.1@csc.canterbury.ac.nz> Nick FitzGerald <n.fitzgerald> writes:
<In article <C15wH7.KpH@newsflash.concordia.ca>, peter@Civil.Concordia.CA
<(Peter Kaldis) writes:
<
<> Well I got one response to this query from Jonathan Monsarrat (jgm@cs.brown.edu)
<> and he says look for keywords like:
<> 
<> 		currentrgbcolor
<> 		setrgbcolor
<> 
<> These get the color, and set the color, respectively. So doing a simple
<> grep on the file and searching for words like "color" should do the trick
<
<This may not be fool-proof however.  I'm fairly sure you will find these
<commands in PS generated by drivers for some PC software (if not others)
<specifically for certain colour PS printers, even if the PS simply
<producing black text.

You are correct in that many software houses will put out all of the color
procedures that they define for their software.  But, the actual output may
never call them.  So, searching for the color keyword will result in hits,
but are the redefined procedures, that contain the keywors, really being
used.

I suspose the best way to see if it is in color is to run it through a
PostScript interpreter like pageview (for OpenWindows).  I don't remember if
GhostScript will display color PostScript, or B&W the output.

Warning: pageview has to be used at the low dpi settings, otherwise it will
display the output in B&W :-(
-- 
harvard\
  ucbvax!uwvax!astroatc!ftms!brown  or  uu2.psi.com!ftms!brown
rutgers/
INTERNET: brown@wi.extrel.com  or  ftms!brown%astroatc.UUCP@cs.wisc.edu
From: sljn6@cc.usu.edu
Newsgroups: comp.lang.postscript
Subject: postScript to text
Date: 24 Jan 93 17:27:54 MDT
Organization: Utah State University




I wanted to know if there is any free software to convert
post script file to normal text.
If so where I can get it

thanks 

rajiv goyal
From: davidw@prl.philips.co.uk (David Walker)
Newsgroups: comp.lang.postscript
Subject: PostScript Batman Logo
Date: 26 Jan 93 10:22:32 GMT
X-Newsreader: Tin 1.1 PL3


Dear All, 
         A few years (!) ago someone posted a postscript description
of the Batman Logo. I REALLY need it. Does anybody have it and if
so please email it to me ASAP.

Thanks for your time,
davidw.

davidw@prl.philips.co.uk

--

                                                          
             |\/\/\/| 
             |      |   
             | (o)(o)   
             c      _)  
              | '___|            Don't have a cow man!
              |   /    
              /____\    
             /      \
From: asch@eerc.berkeley.edu (Mark Aschheim)
Newsgroups: comp.lang.postscript
Subject: Please Help: PS to EPS conversion
Date: 22 Jan 1993 05:26:53 GMT
Organization: University of California, Berkeley
Distribution: world
NNTP-Posting-Host: quiver.eerc.berkeley.edu


I am in need of assistance in converting PS to EPS file formats.  The PS
files are single page graphics files produces in the application S.  I
would like to convert them to EPS format for importing as figures into
a report.

I read the FAQ in this forum and tried the suggestions in subject 9.3
on the issue of coverting PS to EPS, but have had no success.  The commands
erasepage and initclip are defined in the early portion of the PS file, but
not referenced later.  Subject 9.3 defines these as operators that should
not be used in an EPS file, and I have tried removing the lines that contain
them but still no luck.  The error that WordPerfect reports when I try to
retrieve the file into a graphics figure box is "incorrect format".

The ideal solution would be for someone to recommend to me a utility on 
the DOS or UNIX platforms that will do the conversion for me.  Alternatively
I will gladly accept recommendations or assistance if someone offers.  I have
perhaps 50 such files, and because of their similarity I suspect the same
problem plagues them all, so one solution gets 50.  Pretty good return, I
think.

Thanks in advance.
Mark

Newsgroups: comp.lang.idl-pvwave
From: Rick McMullen <mcmullen@ucs.indiana.edu>
Subject: Help!  Out of code space...
X-Xxmessage-Id: <A78DC6C15701140A@stimpy.cica.indiana.edu>
X-Xxdate: Thu, 28 Jan 93 17:22:09 GMT
Organization: CICA/Indiana University
X-Useragent: Nuntius v1.1.1d12
Date: Thu, 28 Jan 1993 22:22:37 GMT

How does one increase the amount of code space to avoid this:

WAVE> .run pf3dr
% Compiled module: PLOTSET.
% Compiled module: DEVINIT.
% Compiled module: SHOWTITLE.
% Compiled module: LOAD3DR.
% Compiled module: GETCR.
% Compiled module: GETSL.
% Compiled module: GETCORS.
% Compiled module: DRAWARC.

                contour,tt,zx,zz,xrange=[0,maxx],$
                                                ^
% Program code area full.
% 2 Compilation errors in module $MAIN$.
WAVE> 
WAVE> help
% At $MAIN$  .
Code area used: 99.98% (16380/16384),  Data area used: 13.26% (1326/10000)
# local variables (including 0 parameters): 62/209
# common symbols: 36/36
      :
      :

Doesn't show up too prominently in the indices for the manuals...

aTdHvAaNnKcSe

Rick McMullen
CICA/Indiana University
From: splaux@ariel.lerc.nasa.gov (Matthias Laux (U. of stuttga))
Newsgroups: comp.lang.idl-pvwave
Subject: Filled contours
Keywords: Filled Contours in PVWAVE
Date: 22 Jan 93 23:50:00 GMT
Organization: NASA Lewis Research Center
News-Software: VAX/VMS VNEWS 1.41

Does anybody know how to reliably do color filled contours of data defined on 
a TRANSFORMED grid (i.e. with a transformation defined with two arrays
x and y, something like contour,p,x,y) ?

I didn't find polycontour satisfying with transformed grids, image_cont works 
only for nontransformed grids, so the only thing I have so far is a 
shade_surf,p,x,y,ax=90,az=0, which is nice, but still not the real McCoy.

Any ideas would be appreciated.

------------------------------------------------------------------------------
NASA Lewis Research Center                              Tel.: 216 - 977 - 7487
Matthias Laux MS SPTD-1                                 Fax.: 216 - 977 - 7500
21000 Brookpark Road
Cleveland, OH 44135
------------------------------------------------------------------------------
Newsgroups: comp.lang.idl-pvwave
From: mayer@teal.csn.org (Mike Mayer)
Subject: PV-WAVE Filled Contours
Organization: Colorado SuperNet, Inc.
X-Newsreader: Tin 1.1 PL4
Date: Thu, 21 Jan 1993 22:09:40 GMT

Hello,

Does anyone have a procedure written in PV-WAVE that will allow
one to create filled contours correctly? 

Have seen a few here in comp.lang.idl-pvwave, but were either written
for IDL (WAVE didn't have the routines it was calling) and one to 
replace POLYCONTOUR (looked the same when plotted).  

Trying to get around having to write out a polygon/path file or 
otherwise fiddle with the original array.  In an ideal world, we'd
have something like CONTOUR, array, /Fill   ...and bingo there it is.

Thanks.

Mike

-- 
___---^^^---___---^^^---___---^^^---___---^^^--- Catch The WAVE ---___      
Michael Mayer, Senior Technical Support Engineer, Visual Numerics, Inc. (was   
Precision Visuals, Inc.) 32915 Aurora Rd. Suite # 160, Solon, OH, 44139  USA
Email: mayer@pvi.com   Human: 216/248-4900   Fax: 216-248-2733
From: terry@esrg.ucsb.edu (Terry Figel)
Newsgroups: comp.lang.idl-pvwave
Subject: Re: IDL for Mac doesn't exist?
Date: 25 Jan 93 17:35:58 GMT
Reply-To: terry@esrg.ucsb.edu (Terry Figel)
Organization: UCSB Earth Space Research Group


-- 
In article <3825@tansei1.tansei.cc.u-tokyo.ac.jp>, you write:
>
>Is there a port of IDL or PVWAVE which runs on a Macintosh computer (Mac/OS or A/UX)??
>I have heard of a version for IBM-PC.  Why not one for Mac?
>
>     Kyo Akita (  kakita@solar.stanford.edu )

We run on our Macs ( and  Suns & Decs) We use Mac X, run Idl on a Dec or 
Sun, display on the Mac.  I even run it on a mac at home, using Appletalk remote,
sometime I use Mac X ( VERY SLOW AT 2400 baud) or I use NCSA telnet, set
plot to Tek and run that way (no images)

-Terry

___________________________________________________________________________
Terry Figel				Internet: terry@esrg.ucsb.edu
Earth Space Research Group, UCSB	Phone   : 805-893-7039  
5276 Hollister Ave. #260		Fax     : 805-964-0157
Goleta CA 93111
___________________________________________________________________________
From: arduini@lposun.larc.nasa.gov (Robert Arduini)
Newsgroups: comp.lang.idl-pvwave
Subject: Re: Portability of PVWAVE EPS output to other applications
Date: 28 Jan 1993 16:06:15 GMT
Organization: NASA Langley Research Center, Hampton, VA  USA
Distribution: world
NNTP-Posting-Host: lposun.larc.nasa.gov

In article <27JAN93.21103083@earvax.waisman.wisc.edu>, wightman@earvax.waisman.wisc.edu writes:
|> We need to use PVWAVE encapsulated Postscript output frequently in other
|> applications, such as Wordperfect and Pagemaker. We have had little problem
|> using PVWAVE EPS output in Wordperfect, although with V4.01 images do not
|> import. Nothing seems to work going to Pagemaker. Further study reveals that
|> 1) PVWAVE outputs EPSF-1.2 and other applications that do produce importable
|> EPS output say EPSF-2.0. Moreover, PVWAVE says %!PS-Adobe-2.0 while the others
|> all say %!PS-Adobe-3.0. I conclude that one problem *may* be that PVWAVE's
|> method of generating EPS output is out of date. Not speaking or thinking
|> in Postscript, I cannot say for sure. Anyone else out there with smarts in
|> this area, or experience with such problems?
|> 
|> Fred Wightman
|> wightman@waisman.wisc.edu

I have had similar problems trying to use PV-Wave EPS output in FrameMaker 
documents.  In the FrameMaker document all I see is a gray box rather than 
the graphic.  If I use Island Draw to convert the PV-Wave EPS file to their
EPS file, I can then see the graphic in the FrameMaker.  The difference seems
to be related to the version of PostScript used by PV-Wave.  

Bob Arduini                           
arduini@lposun.larc.nasa.gov          
Newsgroups: comp.lang.idl-pvwave
From: anpilant@mtu.edu (Andrew A. Pilant)
Subject: Need: WAVE alg. for DEM aspect/slope computation
Keywords: DEM, aspect/slope, terrain corrections
Organization: Michigan Technological University
Date: Sun, 24 Jan 1993 15:51:01 GMT

I'm building a "terrain module" in WAVE for computing various topographic parameters
from digital elevation data (grids).  Does anyone have code for computing slope
aspect?  Specifically, I'm interested in aspect relative to the position of a
satellite in orbit.

Many thanks, in advance-

Drew Pilant
(please reply to:  anpilant@mtu.edu


Newsgroups: comp.lang.idl-pvwave
From: anadeem@ampere.comp.graphics.research (Ahmed Nadeem)
Newsgroups: comp.lang.idl-pvwave
Subject: Edge Detection And Segmentation Using Khoros And PV-WAVE Software
Date: 27 Jan 93 08:19:26 GMT
Article-I.D.: ampere.ANADEEM.93Jan27011926
Distribution: comp.lang.idl-pvwave
Organization: /home/ampere1/anadeem/.organization

Netters,
        I am currently working on a research project that involves generating
solid or geometric models from MRI images. Part of the procedure will require 
me to possibly perform Thresholding & Edge Detection on my MRI images in order
to find out which pixels lie on boundaries between two different regions. 
Thus, I would like to have an Image Processing Software package that has good 
Edge Detection and Classification ( Segmentation ) modules/routines.  
        I have heard a lot about Khoros ( University Of New Mexico) and 
PV-WAVE (Precision Visuals) and was curious if other professionals or students
had any experience on how good they are for the above purposes. Suggestions 
on other software packages are also much welcome.
                                                       Thanks,
                                                              Ahmed Nadeem
Newsgroups: comp.lang.idl-pvwave
From: anadeem@ampere.comp.graphics.research (Ahmed Nadeem)
Newsgroups: comp.lang.idl-pvwave
Subject: MRI And CT-SCAN Images Of Dogs?
Date: 27 Jan 93 08:18:09 GMT
Article-I.D.: ampere.ANADEEM.93Jan27011809
Distribution: comp.lang.idl-pvwave
Organization: /home/ampere1/anadeem/.organization

Netters,
      I am currently working on a research project that involves construction 
of realistic, solid or geometric models for dogs.
      Does anyone know where I can get serial section images( MRI, CT-SCAN, 
etc ) for dogs?
                                                       Thanks,
                                                              Ahmed Nadeem
From: martin@Chemeng.Ed.Ac.Uk (Martin Spenceley)
Newsgroups: comp.lang.idl-pvwave
Subject: PV-Wave X output directed into another X Application
Date: 21 Jan 93 18:28:53 GMT
Reply-To: martin@Chemeng.Ed.Ac.Uk
Organization: Edinburgh University Chemical Engineering Department.
NNTP-Posting-Host: wick.chemeng.ed.ac.uk

PV-Wave 4.01

I am trying to redirect PV-Wave graphical output to my X application written in XView/XLib. 

I have set the XID of the application's canvas in PV-Wave using something like:

Window,0, Set_XWin_ID = XID_Number

But nothing happens. No matter how I fiddle with the code I cannot get it to work.
I have tried an external PV-Wave session to an X Application as well as linking PV-Wave into my source code. No luck!

Anyone out there know the magic commands?

Martin.

-- 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    Martin W. Spenceley                   Telephone 031 650 5891         
    Department of Chemical Engineering    email: martin@uk.ac.ed.chemeng  
    Edinburgh University                  "Where ever you go there you are" - BB                    
Newsgroups: comp.lang.idl-pvwave
From: landsman@stars.gsfc.nasa.gov (Wayne Landsman (301)-286-3625)
Subject: Problem with MK_LIBRARY_HELP in VMS IDL 3.0.0
News-Software: VAX/VMS VNEWS 1.4-b1  
Organization: NASA/GSFC-Laboratory for Astronomy and Solar Physics
Date: Thu, 21 Jan 1993 21:23:00 GMT


I have found that the MK_LIBRARY_HELP.PRO procedure supplied in the V3.0.0 
User Library does not work under VMS IDL.     (This procedures allows users
to create their own .HELP files.)    The created .HELP file has 
incorrect byte offets associated with each procedure name, so that one does 
not always get the help that one asked for.    The problem is caused by
the additional control characters introduced by VMS.

I have a fixed version of MK_LIBRARY_HELP which I will send to anyone who wants
it, but I'm not sure it is the "best" way to fix it.   The two changes I made 
were

   (1)  The temporary file USERLIB.TXT is opened (on the unit txt_file) with 
         the /STREAM keyword 

   (2)  Since the EOF command does not work with /STREAM files, I use the
         On_IOerror command instead of EOF to flag the end of file.

--Wayne Landsman                                 landsman@stars.gsfc.nasa.gov
Newsgroups: comp.lang.idl-pvwave
From: thompson@stars.gsfc.nasa.gov (William Thompson, code 682.1, x2040)
Subject: Re: IDL, PV-Wave, Matlab, Khoros
News-Software: VAX/VMS VNEWS 1.4-b1  
Organization: NASA/GSFC-Laboratory for Astronomy and Solar Physics
Date: Thu, 21 Jan 1993 15:59:00 GMT

In article <1jjo6jINN1tn@usenet.INS.CWRU.Edu>, at913@cleveland.Freenet.Edu (Mirko Vukovic) writes...

	(stuff deleted)

>Programs written in IDL can be 30-60 times slower than equivalent programs
>written in FORTRAN, but if one uses extensive array manipulation facilities
>execution improves tremendously (factors of 10).

	(rest deleted)

Actually our experience has been that, depending on the problem and how the IDL
code is written, IDL routines are just about as fast as an equivalent FORTRAN
routine.  The secret seems to be the use of loops.  If you can write your code
without any DO loops--and a lot of times you can--then IDL's performance is
just about the same as a FORTRAN routine.  If you need to use loops, then
performance suffers greatly from the need to reinterpret the commands over and
over again.

A lot of times I've seen less experienced IDL programs use loops when there
were ways to avoid them--I've been guilty of it myself.

Bill Thompson
Newsgroups: comp.lang.idl-pvwave