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<br>I have a number of structured grids (they almost are
structured points but I need to
<br>manipulate the coordinates of the lattice points and vary them, hence
I use
<br>structured grids) that are laid out in a sort of spread sheet style
format.
<p>As the lattice points are varying w.r.t. time, I would like to keep
track of certain
<br>lattice points in each of the grids. I was trying to place little transparent
cubes on top
<br>of these lattice points and I am having a little trouble with coordinate
systems.
<p>I am positioning the grids using the corresponding actor. Each
grid is identical and
<br>have the same set of points (x, y, z coords). Is there an easy
way to center the cubes
<br>over certain lattice points of each of the grids? I first tried
to place them over
<br>the lattice of the grids themselves - but since the point coordinates
for each grid are
<br>the same, they all map to the same location on one fo the grids.
<p>Would it be better if I assign unique set of coordinates to each structured
grid and then
<br>locate the cubes based on these points (and not use actor positioning
at all)?
<p>Else, is there an accurate way to identify a lattice point location
in actor coordinates?
<p>Thanks.
<p> -- krs
<pre>--
K.R.Subramanian Phone: (704) 687-4872
Department of Computer Science FAX: (704) 687-3516
UNC Charlotte, 228A Kennedy
9201 Univ. City Blvd. Email: krs@cs.uncc.edu
Charlotte, NC 28223-0001 WWW: <A HREF="http://www.cs.uncc.edu/~krs">http://www.cs.uncc.edu/~krs</A></pre>
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