| Re: Resetting data in IDLgrVolume object [message #16971] |
Thu, 26 August 1999 00:00 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Richard Tyc (richt@sbrc.umanitoba.ca) writes:
> IDL gives a warning when I reset the 3D data in a IDLgrVolume object
> with new data
> % IDLGRVOLUME::SETPROPERTY: Warning: New volume data with new dimensions
> forced removal of old data.
>
> Is this normal/safe and could I suppress it? Is the old data memory
> being properly freed up ? Could I be creating a memory leak?
It is certainly normal/safe. (Although a bit weird. I've
noticed RSI has grown fond of these kinds of warnings
lately. I don't care much for them.) Your memory is fine.
If it leaks, it is not your problem. Call RSI. :-)
I don't know if it can be suppressed or not, but try
bracketing the code with changes to !Quiet.
> Also, what is up with the 2 different data terms (data0 and data1) for
> IDLgrVOLUME ? What would be a good example of using both together ?
Suppose you had two different representations of the
heart, say ultrasound and some kind of CT scan volume.
You might want to render the volume in such a way as
to blend the information from these two different
representations. The two data sets would allow you
to do that.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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