Disclaimer: The following implies no criticism of OpenDX, I am probably
doing something stupid.
I am having trouble visualising irregular data connected by tetrahedra.
While a couple of very simple cases work, with 1 and 6 tetrahedra, I am
unsuccessful with my real dataset. I generate about 4500 tetrahedra from
about 2500 data points. The program appears to be doing some computation,
and gives no errors, but the image is not visible.
I am using:
Import > Mark > MapToPlane > AutoColor > Image
I have turned up the intensity in AutoColor to 10, and I have tried looking
at the three planes through the c.g. The same program works fine for my
simple cases.
The coordinates of my points are in the following range:
x in (299000 -> 302000)
y in (700000 -> 704000)
z in (-15 -> 3)
Is it possible that I am violating some program limits?
I doubt this is it, we work in GIS coordinates much larger than this
all the time.
Alternatively, it is possible that an image is being created but I can't see
it, i.e. it is off screen. Is there a way to make sure that the the image
is in the field of view?
Yes, this happens quite often. Use the Reset in the Image's View
Options Control. If that doesn't help, try putting a ShowBox right
before the Image--that will show the bounding box for your objects
and give you and idea if you have something that can be rendered.
David
Thanks for your help
Gib
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.............................................................................
David L. Thompson The University of Montana
mailto:[EMAIL PROTECTED] Computer Science Department
http://www.cs.umt.edu/u/dthompsn Missoula, MT 59812
Work Phone : (406)257-8530
