Re: problem continues... (FlatField/ apparent inversion)

• To: Cameron Sanders <csanders@xxxxxxxxxxx>
• Subject: Re: problem continues... (FlatField/ apparent inversion)
• From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>
• Date: Wed, 23 Feb 2000 17:43:37 -0600

Hi Cam,

> OK, so I reworked the data in my sample so that I have one flat field to
> be displayed. Now I am seeing what I expect when I flood the volume,
> but I'm still getting what looks like all spatial variables are inverted
> (flipped).

You found a real bug in the volume rendering stuff.  The
spiral pattern was desgined not to have any simple symmetry
and so catch simple flip bugs.  However, the bug you found
was actually two flips that preserved the spiral.  The bug
fix, plus a modifed spiral with "no" symmetries, is now on
the VisAD ftp server.

Thanks a million for finding this bug.

Cheers,
Bill
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html

• Follow-Ups:
  • p.s., Re: problem continues... (FlatField/ apparent inversion)
    • From: Bill Hibbard