| More Function Graphics Plot Weirdness [message #78020] |
Thu, 20 October 2011 22:36  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
Ok, who is up for more function graphics plot weirdness?
I hope it is not too late to submit a test question
for this year's IEPA banquet.
What property of an IDL function graphics plot will
cause a plot with six overlaid data sets to plot a
random assortment of the data sets in random locations?
I don't think you will guess, so let me give you
the answer.
If all but one of the six overlaid data sets uses a
double precision form of the Julian time and one of
the data sets uses the long integer form of the Julian
time, then all hell breaks loose and the plot appears
to be absolutely insane!
I told you you couldn't guess the answer! :-)
It's too late to give you an example of this, and
I'm going hiking tomorrow, so maybe I'll write this
up later.
I will say this about function graphics, though.
I haven't had this much fun solving problems since
I decided to study physics after being an English
and Theater major for years and years. ;-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: More Function Graphics Plot Weirdness [message #78096 is a reply to message #78020] |
Sat, 22 October 2011 10:03  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Craig Markwardt writes:
> Wrong, I totally guessed that one. :-)
Yes, but you are already in the IEPA veterans
division (for people who qualified with IDL 4.0
or lower), so it doesn't count. ;-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: More Function Graphics Plot Weirdness [message #78097 is a reply to message #78020] |
Sat, 22 October 2011 09:57 |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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On Oct 21, 1:36 am, David Fanning <n...@dfanning.com> wrote:
> Folks,
>
> Ok, who is up for more function graphics plot weirdness?
>
> I hope it is not too late to submit a test question
> for this year's IEPA banquet.
>
> What property of an IDL function graphics plot will
> cause a plot with six overlaid data sets to plot a
> random assortment of the data sets in random locations?
>
> I don't think you will guess, so let me give you
> the answer.
>
> If all but one of the six overlaid data sets uses a
> double precision form of the Julian time and one of
> the data sets uses the long integer form of the Julian
> time, then all hell breaks loose and the plot appears
> to be absolutely insane!
>
> I told you you couldn't guess the answer! :-)
Wrong, I totally guessed that one. :-)
Craig
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