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Re: Defining constants in IDL? [message #31307 is a reply to message #31306]

Mon, 24 June 2002 06:04

Robert Stockwell
Messages: 74
Registered: October 2001

Member

Bob wrote:

> I have a quick question. I am a big newbie when it comes to IDL, but
> the place that I work at uses it extensively. I am used to C/C++, and
> I want to know how does one define a constant in IDL (similar to
> #DEFINE TRUE 1 in C/C++). I have read through the user manuals, but to
> no avail. Also, are there any good tutorials online to help a
> struggling newbie like me? The user manuals 'cover' all the material,
> but rather poorly.
>

in your startup file, you can define system variables

DEFSYSV, '!imag', complex(0,1)
DEFSYSV, '!twopi', 2*!dpi

print,!twopi

CHeers,
bob

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[Message index]

		Re: Defining constants in IDL? By: thompson on Thu, 27 June 2002 15:51
		Re: Defining constants in IDL? By: jeyadev on Tue, 25 June 2002 10:37
		Re: Defining constants in IDL? By: R.Bauer on Mon, 24 June 2002 06:43
		Re: Defining constants in IDL? By: Robert Stockwell on Mon, 24 June 2002 06:04
		Re: Defining constants in IDL? By: ronn on Sat, 22 June 2002 09:55
		Re: Defining constants in IDL? By: mperrin+news on Fri, 21 June 2002 19:31
		Re: Defining constants in IDL? By: Dominic Zarro on Fri, 21 June 2002 19:18
		Re: Defining constants in IDL? By: jeyadev on Fri, 28 June 2002 15:51

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