>Have you tried using Include to isolate each sub-volumes by data value and
>then pass each sub-volume to Measure?


The problem with this is that to create the sub-volumes, I assign the data in the field to a value of 1 (or 0 for non-sub-volume spaces).  Because of this, I don't see any immediate way to distinguish between isolated sub-volumes.  

When I use the Connected module from bonus pack, this assigns a different integer to each isolated surface.  At that point, I can use Include to isolate the surfaces.  Basically I need to do the same thing with the volumes.

Any ideas?


-Jonathan
__________________________________________________

Jonathan Hedstrom                               tel: (408) 927-3766
IBM Almaden Research Center             fax: (408) 927-2100
650 Harry Rd.                                        [EMAIL PROTECTED]
San Jose, CA 95120



Lloyd A Treinish/Watson/[EMAIL PROTECTED]
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11/22/02 02:03 PM
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Have you tried using Include to isolate each sub-volumes by data value and
then pass each sub-volume to Measure?


Jonathan Hedstrom/Almaden/[EMAIL PROTECTED]@opendx.watson.ibm.com on 11/22/2002
04:19:37 PM

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Subject:    [opendx-users] Volume calculation




Hi all.

I have a large continuous 3D field that I transform by 'clipping' it;
basically assigning a 0 to points that fall below a given value and a 1 to
points above that value.  This results in a collection of disconnected
volumes.  Does anyone have any suggestions on a simple way to calculate the
volume of each separated volume?

I have done this using the Connected module from the Bonus Pack.  The
problem here is that this module fails for very highly continuous
surfaces.  Also, for the work I am doing, calculating the volume from the
isosurface is not necessarily desirable.


Thanks,
Jonathan
__________________________________________________

Jonathan Hedstrom                               tel: (408) 927-3766
IBM Almaden Research Center             fax: (408) 927-2100
650 Harry
Rd.                                       [EMAIL PROTECTED]
San Jose, CA 95120




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