| Re: vector print bug ? [message #18876] |
Tue, 15 February 2000 00:00  |
Mark Hadfield
Messages: 783
Registered: May 1995
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Senior Member |
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junkbuster <grabow@darkstar.inka.de> wrote in message
news:38A89781.50189880@darkstar.inka.de...
> Hello !
>
> In idl 5.3 there is the new IDLgrPrinter class with the Draw method
> for vector plots:
>
> Printer = OBJ_NEW ('IDLgrPrinter', vector=1)
> Printer -> Draw, Scene
>
> The output is supposed to be an eps file, but we are not able to print
> or view or include this plot (yes, it has a 'showpage' at the end) with
> any tool available to us. We tried several options, but nothing helps.
> Is this a possible bug ? Or belongs it to that class of scrap Windows
> believes to be PostScript (we are using Unix: OSF, Linux, and Solaris,
> of course) ?
Whereas on my machine, if I print (vector or bitmap format) through one of
the built-in Postscript printer drivers and divert the output to a file,
then I get a Postscript file I can view in Ghostscript or send to a PS
printer.
I am using Windows, of course. It looks like you need to upgrade.
---
Mark Hadfield
m.hadfield@niwa.cri.nz http://katipo.niwa.cri.nz/~hadfield/
National Institute for Water and Atmospheric Research
PO Box 14-901, Wellington, New Zealand
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| Re: vector print bug ? [message #18877 is a reply to message #18876] |
Mon, 14 February 2000 00:00  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Dr. Udo Grabowski (grabow@darkstar.inka.de) writes:
> In idl 5.3 there is the new IDLgrPrinter class with the Draw method
> for vector plots:
>
> Printer = OBJ_NEW ('IDLgrPrinter', vector=1)
> Printer -> Draw, Scene
>
> The output is supposed to be an eps file, but we are not able to print
> or view or include this plot (yes, it has a 'showpage' at the end) with
> any tool available to us. We tried several options, but nothing helps.
> Is this a possible bug ? Or belongs it to that class of scrap Windows
> believes to be PostScript (we are using Unix: OSF, Linux, and Solaris,
> of course) ?
Not sure what documentation you are reading, but my documentn
doesn't say anything about sending output to a file at all.
It says that output is sent to the printer in vector (as opposed
to bitmap) form. Of course, you might be able to re-direct the
output to a PostScript file if your Dialog_PrinterSetup will
allow it. (My Lexmark printer setup allows all kinds of things,
including redirection to a Postscript file, but encapsulated
PostScript is not among them.)
And, in addition, my documentation says to use the VECTOR
keyword as a keyword to the DRAW method:
Printer = OBJ_NEW ('IDLgrPrinter')
ok = Dialog_PrinterSetup(Printer)
IF OK THEN Printer -> Draw, Scene, vector=1
When I do this I find I get significantly faster rendering
to the printer. :-)
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: vector print bug ? [message #18944 is a reply to message #18877] |
Thu, 17 February 2000 00:00 |
Mark Hadfield
Messages: 783
Registered: May 1995
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Senior Member |
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Robert S. Mallozzi <mallors@ips1.msfc.nasa.gov> wrote in message
news:88canv$jtn$1@hammer.msfc.nasa.gov...
> In article <950573781.523241@clam-55>,
>
> Certainly you can't meant that Unix -> Windows is
> an upgrade ;-)
Well, that WAS what I meant to imply, but I left out the :-)
The original poster (i.e. person who posted the message--there must be a
better word) complained about a problem with IDL on Unix, but SOMEHOW he
managed to blame it on Windows. If there's something wrong with IDL on
Windows, then it's Windows' fault, and if there's something wrong with IDL
on Unix, then it's also Windows' fault, because the programmers at RSI have
been seduced by the Evil Empire (or the Evil Empire's large number of
customers) to doing things in a Windows-ish, and therefore wrong, way.
> Sorry I couldn't resist, but Word just crashed again, as
> it did yesterday as well...
Unix applications never crash?
But the LAST thing I want to do is get religious about operating systems.
Hell, I use Unix too, and some time, if I have a month or two to spare, I
might even install Linux on my PC :-)
---
Mark Hadfield
m.hadfield@niwa.cri.nz http://katipo.niwa.cri.nz/~hadfield/
National Institute for Water and Atmospheric Research
PO Box 14-901, Wellington, New Zealand
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| Re: vector print bug ? [message #18947 is a reply to message #18877] |
Wed, 16 February 2000 00:00 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Mark Hadfield (m.hadfield@niwa.cri.nz) writes:
> The original poster (i.e. person who posted the message--there must be a
> better word)
I offer "P-PostIt", pronounced Puh-Post-It. Short for
the "Putter who Posted It".
> If I have a month or two to spare, I
> might even install Linux on my PC :-)
I think we should all bring our portables to the IDL
Expert Programmers Association meeting next month and
get JD to give a seminar on how to get the damn things
working with Linux. At least then we would all be on
the same page and could share code without having to
spend half our waking hours debugging "cross-platform
compatible" code. :-)
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: vector print bug ? [message #18952 is a reply to message #18877] |
Wed, 16 February 2000 00:00 |
Udo Grabowski
Messages: 17
Registered: February 2000
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Junior Member |
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A more simple workaround is to plot a small curve with color=[254,255,255]
somewhere (nearly invisible) and add it as the FIRST component to the
view object. For all subsequent plot objects the color is then forced to
be switched back to black in the postscript files automatically.
--
Dr. Udo Grabowski email: udo.grabowski@imk.fzk.de
Institut f. Meteorologie und Klimaforschung II, Forschungszentrum Karslruhe
Postfach 3640, D-76021 Karlsruhe, Germany Tel: (+49) 7247 82-6026
http://www.fzk.de/imk/imk2/ame/grabowski/ Fax: " -6141
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| Re: vector print bug ? [message #18963 is a reply to message #18877] |
Tue, 15 February 2000 00:00 |
mallors
Messages: 76
Registered: November 1997
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Member |
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In article <950573781.523241@clam-55>,
"Mark Hadfield" <m.hadfield@niwa.cri.nz> writes:
>
[SNIP]
> Whereas on my machine, if I print (vector or bitmap format) through one of
> the built-in Postscript printer drivers and divert the output to a file,
> then I get a Postscript file I can view in Ghostscript or send to a PS
> printer.
>
> I am using Windows, of course. It looks like you need to upgrade.
^^^^^^^^^^^^^^^
Certainly you can't meant that Unix -> Windows is
an upgrade ;-)
Sorry I couldn't resist, but Word just crashed again, as
it did yesterday as well...
Regards,
-bob
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~
Robert S. Mallozzi 256-544-0887
Mail Code SD 50
http://gammaray.msfc.nasa.gov/ Marshall Space Flight Center
http://cspar.uah.edu/~mallozzir/ Huntsville, AL 35812
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~
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| Re: vector print bug ? [message #18966 is a reply to message #18877] |
Tue, 15 February 2000 00:00 |
Udo Grabowski
Messages: 17
Registered: February 2000
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Junior Member |
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A further investigation showed that this bug only applies to the black
and white entries of the color palette. Defining a palette (indexed
color) for the printer where these entries are swapped helps to avoid
this trap until a bug fix is available.
--
Dr. Udo Grabowski email: udo.grabowski@imk.fzk.de
Institut f. Meteorologie und Klimaforschung II, Forschungszentrum Karslruhe
Postfach 3640, D-76021 Karlsruhe, Germany Tel: (+49) 7247 82-6026
http://www.fzk.de/imk/imk2/ame/grabowski/ Fax: " -6141
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| Re: vector print bug ? [message #18968 is a reply to message #18877] |
Tue, 15 February 2000 00:00 |
Udo Grabowski
Messages: 17
Registered: February 2000
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Junior Member |
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Yes, I was a bit sloppy, the vector keyword belongs to the draw method.
Nevertheless, we found out that this is indeed a bug in the Unix version.
In the generated postscript file, the background is plotted at first,
then they draw the curves, but without resetting the drawing color !
So curves are always drawn with the background color. Explicitly setting
the color for the curves does not help. We "fixed" this error temporarily
by inserting the appropriate color setting commands directly into the
postscript file.....
--
Dr. Udo Grabowski email: udo.grabowski@imk.fzk.de
Institut f. Meteorologie und Klimaforschung II, Forschungszentrum Karslruhe
Postfach 3640, D-76021 Karlsruhe, Germany Tel: (+49) 7247 82-6026
http://www.fzk.de/imk/imk2/ame/grabowski/ Fax: " -6141
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