| New Graphics Challange [message #73762] |
Mon, 29 November 2010 18:47  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
I just finished refurbishing an old program named
WindowImage, which is used to "window-level" or
adjust the contrast of an 2D image. The user can
move a cursor in the image window vertically to set
the width of the "window", and horizontally to set
the "level" of the "window."
http://www.dfanning.com/programs/windowimage.pro
This is the sort of thing I have in mind when I
say new graphics tools like this will be "impossible
to build" for mere mortals. In fact, I think it
probably can't be done.
But, rather than testing the claim myself, I thought
it might be more fun to just MAKE the claim and see
if anyone (or everyone!) could prove me wrong. :-)
Take as long as you like. I re-wrote this program
essentially from scratch in about 4-5 hours
this morning from "parts" that were laying around,
some of which had to be modified to get the color
bar to do what I wanted it to do.
Happy programming!
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: New Graphics Challange [message #73904 is a reply to message #73762] |
Thu, 02 December 2010 17:22  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Paulo Penteado writes:
> I fully intend to look into this. But I have been impossibly busy this
> week, so I have only been able to write quick answers like this one.
OK, Paulo, I knew I could count on you. I'll
wait patiently then for enlightenment. I can't get to
it for weeks either. :-)
Cheers,
David
P.S. Let's just say I only write longer answers late
in the day when my eyes are crossed and my brain is
fried. :-)
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: New Graphics Challange [message #73905 is a reply to message #73762] |
Thu, 02 December 2010 17:13 |
penteado
Messages: 866
Registered: February 2018
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Senior Member
Administrator |
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On Dec 2, 9:18 pm, David Fanning <n...@dfanning.com> wrote:
> You can't believe with what trepidation I looked at
> the newsgroup the day after my challenge. I fully
> expected 10 people to have solved the challenge
> and confirmed the error of my ways. But, three days
> later, and still not a word from anyone.
I fully intend to look into this. But I have been impossibly busy this
week, so I have only been able to write quick answers like this one.
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| Re: New Graphics Challange [message #73907 is a reply to message #73762] |
Thu, 02 December 2010 15:18 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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David Fanning writes:
> I just finished refurbishing an old program named
> WindowImage, which is used to "window-level" or
> adjust the contrast of an 2D image. The user can
> move a cursor in the image window vertically to set
> the width of the "window", and horizontally to set
> the "level" of the "window."
>
> http://www.dfanning.com/programs/windowimage.pro
>
> This is the sort of thing I have in mind when I
> say new graphics tools like this will be "impossible
> to build" for mere mortals. In fact, I think it
> probably can't be done.
>
> But, rather than testing the claim myself, I thought
> it might be more fun to just MAKE the claim and see
> if anyone (or everyone!) could prove me wrong. :-)
You can't believe with what trepidation I looked at
the newsgroup the day after my challenge. I fully
expected 10 people to have solved the challenge
and confirmed the error of my ways. But, three days
later, and still not a word from anyone.
Now I can't decide if the prize (whatever it was--
I normally give a hug and a kiss, but that probably
wouldn't do in this situation) was too meager for such
a piddly amount of effort or if this is truly
impossible with the IDL 8 graphics.
I realize I'm the only one here without a job, but
still...
Shoot. I may have to look into this myself. :-(
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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