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Re: WHERE and pointers [message #33642 is a reply to message #33526]

Sun, 12 January 2003 16:23

sheryn.gillin
Messages: 6
Registered: January 2003

Junior Member

> % Expression must be a scalar in this context: PATIENTNAME

That's exacty the error message I get when trying to use WHERE. :(

> In this case, the pointer only points to one thing, so there
> is not much point in a WHERE function. In your case, the
> pointer might point to several things, so a WHERE function
> might be appropriate. Or, you might have to dereference all
> your points into a large array, and *then* use the WHERE
> function. But, in any case, *something* ought to be possible. :-)

Guess my FOR loop isn't looking so bad after all. :) Think I'll just
stick to that method, for this instance.

> How did that ComputeMesh suggestion pan out for your stack
> of ROIs?

Absolutely fantastic. Thank you. Sent the 'displays' off to my
supervisors this morning, and I hope they are as pleased/happy as me.
:)

> I put up a tip just the other day on my web page, by the way.
> The proper way to delete all these pointers when you are done
> with them (and you may not know at all how many you have!), is
> like this:
>
> Heap_Free, dicomdir

Definitely cleaner than my multiple lines, destroying each object
seperately. I'll update my code tonight.

Thanks & Cheers
Sheryn

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[Message index]

		Re: WHERE and pointers By: David Fanning on Thu, 09 January 2003 19:45
		Re: WHERE and pointers By: sheryn.gillin on Thu, 09 January 2003 13:53
		Re: WHERE and pointers By: David Fanning on Wed, 08 January 2003 22:16
		Re: WHERE and pointers By: sheryn.gillin on Sun, 12 January 2003 16:23

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