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Re: Widgets and research [message #9248]

Sun, 15 June 1997 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Mike Schienle writes:

> I wonder if David will have a class on using IDL's objects and the new
> drawing model in the near future. Perhaps a two-day class for those that
> are pretty familiar with the other aspects of IDL programming.

I'm teaching my first IDL 5.0 class next week. It reminds me of
the first Widget Programming class I taught all those many years
ago. (Has it really been over 6 years that we have been at this,
Mike!) I think Mike was in one of my very earliest classes. In
those days I was lucky to be five minutes ahead of the class.
The most important thing we learned was how important innovation
and humor can be in learning something new. We *all* learned
to write widget programs together!

I've spent the weekend writing object graphic programs, and I
must say I am starting to become impressed with the power of
them. It has been hard to change my thinking about
how graphics are displayed in a window. The whole Viewplane
Rectangle thing is a complete departure for me in how I've
written programs in the past. But once you get the idea, it
is amazingly powerful. I added the ability to preserve the
image aspect ratio to my XImage program, as well as the
ability to zoom in and out of the plot. The whole event
handler for the two floating zoom buttons amounted to 12
lines of code! I was *extremely* impressed.

I think I am going to like object-oriented programming as
much as I like widget programming. :-)

Cheers,

David

------------------------------------------------------------ --
David Fanning, Ph.D.
Fanning Software Consulting
Customizable IDL Programming Courses
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com
IDL 5 Reports: http://www.dfanning.com/documents/anomaly5.html
--
David Fanning, Ph.D.
Fanning Software Consulting
Customizable IDL Programming Courses
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com
IDL 5 Reports: http://www.dfanning.com/documents/anomaly5.html

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[Message index]

		Re: Widgets and research By: davidf on Sun, 15 June 1997 00:00
		Re: Widgets and research By: mgs on Sun, 15 June 1997 00:00
		Re: Widgets and research By: rivers on Sat, 14 June 1997 00:00
		Re: Widgets and research By: Jonathan Rogness on Fri, 13 June 1997 00:00
		Re: Widgets and research By: Stein Vidar Hagfors H on Fri, 13 June 1997 00:00
		Re: Widgets and research By: davidf on Fri, 13 June 1997 00:00
		Re: Widgets and research By: meinel on Fri, 13 June 1997 00:00
		Re: Widgets and research By: David Foster on Tue, 17 June 1997 00:00
		Re: Widgets and research By: davidf on Tue, 17 June 1997 00:00
		Re: Widgets and research By: mgs on Tue, 17 June 1997 00:00

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