At 09:48 AM 9/5/2002 +0200, you wrote:
hi,
i'm a bit new in dx use, but when trying to compute an isosurface on 2D
data, it
usually work fine but i sometime get a "Internal error : DXBoundingBox
called with
error code set" message and no isosurface is drawn.
what does this mean : is my net bugged, or my data badly structured or may
it be a bug
in dx itself ?
That scary looking error usually just means no object was delivered to
Image to be rendered,
i.e., you probably chose a value for Isosurface for which no surface is
creatable.
My favorite trick is to ShowBox the original volume, then
Color(opacity=0.0) the box and
Collect it with the other objects you want to see (the isosurface). This
means there is always something
to render, but when rendered it is invisible so it doesn't get in your way.
Then if you get an empty Image and no error, you know you have a badly
chosen iso value.
Chris Pelkie
Managing Partner
Practical Video, LLC
30 West Meadow Drive, Ithaca, NY 14850
