isosurface problem

[Jeremy Bailin]

I'm having a problem with isosurfaces in 1.80. I've created both a
volumetric rendering object using ns2cvr and an isosurface object
using ns2cis, both using the same data grid and transformation matrix
(the transformation just scales the relative lengths of the axes, with
no cross terms). The volumetric object looks correct, but the
isosurfaces appear offset in the z direction from where they should
be. Aside from having different scalings, the axes are also not
centered at zero, which may be relevant. Any guesses/useful
diagnostics I can give?

-Jeremy.

[David Barnes]

Hi Jeremy,

I think this is probably fixed in the current 1.99c (pre 2.0 build).
I definitely recall working on a bug like this and ultimately making
the scaling code for isosurfaces and volume rendering identical. I
will send you a 1.99c build: please reply on this list to indicate if
the bug is still present, and then I will need a demo program and data
from you.

thanks - David.

[Jeremy Bailin]

Yes, it's fixed in the 1.99c build! Thanks!

--
Dr Jeremy Bailin
astro...@gmail.com