Re: how to draw points with a 3d display?

> i drew a 3d function by using example 3.9 in the
> tutorial, if i would like to draw some points in the
> 3d display of this example, what should i do?

I am a little unclear about your question.  If you want to
draw a number of isolated points, you could use a FlatField
with MathType:

  (index -> (latitude, longitude, elevation))

where index is just a dummy index of points.

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