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Re: Object boundaries [message #40325 is a reply to message #40209]

Mon, 02 August 2004 16:05

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

David Fanning wrote:

> Rick Towler writes:
>
>
>> ; The reason you are reading this...
>> IDL> oaxis->draw, odest, oview
>
>
> How did you figure this out, Rick? I tried the DRAW
> method, too, but could only vaguely remember how to
> find parameters to unknown procedures and functions.
> And I didn't have time to figure it out again. :-)

I wish I could say I divine the parameters, like the great Carnac
foretold the question to the answer written on the envelope, by simply
lifting the keyboard to my forehead. Alas, my methods are far less exotic.

IDLgrGraphic::Draw is pretty easy if you think about it. Passing one,
then two dummy arguments led IDL to tell me it took two parameters.
Thinking about it for a second, I knew that the view was probably one,
and the destination the other. Trial and error got the order.

Obviously this approach has its limitations but RSI doesn't make their
API overly obtuse (well, IMO) so you can do this for quite a number of
the undocumented parent objects/methods. For example,
IDLgrModel::GetXYZRange. The name says function method. No arguments
fails. One fails. Two fails. Three works. O.K. Then the arguments
are (x,y,z).

-Rick

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[Message index]

		Object boundaries By: Michael Wallace on Tue, 27 July 2004 10:56
		Re: Object boundaries By: James Kuyper on Tue, 03 August 2004 07:46
		Re: Object boundaries By: mperrin+news on Wed, 04 August 2004 14:41
		Re: Object boundaries By: Rick Towler on Mon, 02 August 2004 16:05
		Re: Object boundaries By: Karl Schultz on Mon, 02 August 2004 15:44
		Re: Object boundaries By: David Fanning on Mon, 02 August 2004 14:58
		Re: Object boundaries By: Paul Van Delst[1] on Mon, 02 August 2004 14:54
		Re: Object boundaries By: Rick Towler on Mon, 02 August 2004 14:38
		Re: Object boundaries By: David Fanning on Mon, 02 August 2004 14:11
		Re: Object boundaries By: Michael Wallace on Mon, 02 August 2004 13:46
		Re: Object boundaries By: David Fanning on Mon, 02 August 2004 13:32
		Re: Object boundaries By: Michael Wallace on Mon, 02 August 2004 13:19
		Re: Object boundaries By: David Fanning on Mon, 02 August 2004 12:44

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