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Re: Reading in data question [message #66137 is a reply to message #66136]

Fri, 17 April 2009 09:10

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

tomandwilltamu08@gmail.com writes:

> Thanks David!
>
> That was very helpful, and it works great!

Woohoo!

> I must confess that it may take me a while to understand how this
> works. I have a little experience with structures, but pieces of the
> syntax still lose me. Is there any place where I can find good
> tutorials for this sort of stuff:

Well, I just sent you one. :-)

No one has written a good tutorial on structures, and I
don't know enough about them to do it. Maybe you will
write the article once you figure this program out. ;-)

> struct = {int_1:0L, int_2:0L, float_1:0.0, str:""}

This creates a structure.

> data = Replicate({name:"", ptr:Ptr_New()}, count+1)

This replicates the structure count+1 times, thereby
creating an array of structures.

> .go (for example, I hadn't seen the '.go' command before...)

The executive command .go is how you run a compiled main-level
program. I could easily have made this main-level program an
IDL function, but I thought the explanation was clearer this
way. And it allows you to experiment with data at the IDL
command line.

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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[Message index]

		Re: Reading in data question By: R.Bauer on Mon, 20 April 2009 02:33
		Re: Reading in data question By: David Fanning on Fri, 17 April 2009 10:37
		Re: Reading in data question By: tomandwilltamu08 on Fri, 17 April 2009 10:21
		Re: Reading in data question By: David Fanning on Fri, 17 April 2009 09:10
		Re: Reading in data question By: tomandwilltamu08 on Fri, 17 April 2009 08:32
		Re: Reading in data question By: David Fanning on Thu, 16 April 2009 22:04

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