| Catalyst Library [message #42314] |
Wed, 02 February 2005 16:55  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
A number of people have written me asking about the Catalyst Library
that I keep going on about on this newsgroup. It's been damn
embarrassing not having anything to show you. :-(
So this afternoon I put together a short blurb about the
Library and have made available an IDL save file of
a Catalyst Library Sample Application. This is actually
the test program I wrote to test Library features, but
it will give you some idea of what you can do with the
Library itself.
The Library will require IDL 6.1 to run, or you can download
the freely available IDL Virtual Machine from the RSI web page
and run it on that. The program is about 1 MB in size, so
those of you on government computers, go get some coffee while
it downloads. You will need a little caffeine to believe what
you are seeing, especially with the annotation tab functionality. :-)
Everything you see in the application window is an object.
In fact, *everything* in the Catalyst Library is an object.
The application program itself is an object. On the left is
an assortment of widget objects. These should look familiar to
you. They work (more or less) like IDL widgets (or maybe how
IDL widgets would work if we were to write them now). Notice
the special StatusBar widget object at the bottom of the
application.
In the middle of the application are six tab windows. Each
shows a different aspect of the library. Some are not very
interesting (Histogram) because they were written early in
Library development. Others are more interesting (Medical Image
and Annotation) because they have been written more recently
and take advantage of new features of the Library.
On the right of the application are control panels, buttons, etc.
that allow user interaction of various kinds. Most of the
graphics windows also allow some kind of user interaction.
I prefer not to tell you about that and see if you can figure
it out for yourself. It is suppose to be (cross my fingers)
intuitive, after all.
The library has been tested on Windows XP systems, for the
most part. I'm *very* curious to know if it will run elsewhere.
It's suppose to, but... well, you pay attention to the newsgroup,
don't you. :-)
We are working on a User's Guide and when that is finished,
we will have to make our minds up what we are going to do
with this software. In the meantime, you can look at it, make
suggestions, etc. But unless you make some special arrangements
with me, you can't get your hands on it. :-)
As you know, I always appreciate you folks serving as guinea
pigs for my experiments. :-)
Catalyst Library Blurb:
http://www.dfanning.com/tips/catlib.html
Sample Application:
http://www.dfanning.com/programs/catalyst.sav
IDL VM:
http://www.rsinc.com/download/chooseplatform.asp?urlProductC ode=13
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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