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Re: On the differences between idl and pvwave [message #177]

Tue, 24 September 1991 13:23

thompson
Messages: 584
Registered: August 1991

Senior Member

In article <1991Sep20.031251.29717@uokmax.ecn.uoknor.edu>,
keller@nsslsun.nssl.uoknor.edu (Dave Keller) writes...

> Graphics commands especially go by the 'keyword' concept in PVWAVE, while
> IDL goes (VAX version) by 'parameters':
> IDL> CONTOUR,agrid,[1,2,5,10,20,50,100]
> WAVE>CONTOUR,agrid,labels=[1,2,5,10,20,50,100]
> The latter is too much typing for an INTERACTIVE programming language IMO.
> I also believe that the former is better for 'sophisticated' programming
> where you might build commands then execute them (if you are so inclined).

You're using an *OLD* version of IDL. This is comparing apples and oranges.
Keywords originated in IDL (version 2) before IDL and PVWAVE split apart.

Keywords are an immensely useful concept. The sophistication of my IDL
software has increased exponentially since keywords were introduced. It is a
hell of a lot easier for *OPTIONAL* information to propagate through a chain of
subroutines if the keyword concept is used.

Bill Thompson

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[Message index]

		Re: On the differences between idl and pvwave By: thompson on Tue, 24 September 1991 13:23
		Re: On the differences between idl and pvwave By: bdavis on Mon, 23 September 1991 10:42
		Re: On the differences between idl and pvwave By: hunt on Fri, 20 September 1991 12:50
		Re: On the differences between idl and pvwave By: jennifer on Fri, 20 September 1991 12:25
		Re: On the differences between idl and pvwave By: dwight on Fri, 20 September 1991 08:54
		Re: On the differences between idl and pvwave By: keller on Thu, 19 September 1991 20:12

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