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Re: How to keep two objects synchronized? [message #86106 is a reply to message #86105]

Fri, 04 October 2013 08:44

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> One reason I haven't developed the Catalyst Library more is that even it
> became overly complex over time, to the point where I was having trouble
> teaching ordinary programmers how to work with it. Instead, I opted to
> take some of its best ideas (e.g., simple image display, coordinate
> objects, color and device independence) and incorporate them into the
> Coyote Library in a way that was more understandable for everyone.

I was thinking about complexity as I was taking a shower this morning.
When I wrote the paragraph above, I was thinking about the Catalyst
interactions, which are too complex for most people to program. But, on
the other hand, they really are extraordinary. (Interactions allow you
to move text around on the display, resize boxes, rectangles, and
arrows, change colors and other properties, etc.) I've never seen the
like using direct graphics. They make direct graphics manipulations seem
like magic.

You can see this for yourself in a Catalyst application like
AnnotateWindow, which allows the user to add annotations to an image or
to a graphics window. That truly was a graphics revolution that no one
seemed to want or need. Such is life that often our best work is
completely ignored. ;-)

http://www.idlcoyote.com/catalyst/annotate.html

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		How to keep two objects synchronized? By: Matthew Argall on Thu, 03 October 2013 05:49
		Re: How to keep two objects synchronized? By: David Fanning on Thu, 03 October 2013 06:20
		Re: How to keep two objects synchronized? By: Matthew Argall on Fri, 04 October 2013 07:48
		Re: How to keep two objects synchronized? By: David Fanning on Fri, 04 October 2013 08:10
		Re: How to keep two objects synchronized? By: David Fanning on Fri, 04 October 2013 08:44
		Re: How to keep two objects synchronized? By: David Fanning on Fri, 04 October 2013 09:05
		Re: How to keep two objects synchronized? By: lecacheux.alain on Thu, 03 October 2013 07:02
		Re: How to keep two objects synchronized? By: Matthew Argall on Fri, 04 October 2013 07:49

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