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Re: Visualization of a list of 3D points coordinates with a perspective

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89337] Re: Visualization of a list of 3D points coordinates with a perspective
  • From: Peltio <peltio at twilight.zone>
  • Date: Fri, 6 Jun 2008 06:46:51 -0400 (EDT)
  • References: <g25nta$hu5$1@smc.vnet.net> <g27r6l$d7f$1@smc.vnet.net>
  • Reply-to: peltioNOSP at Mdespammed.com.invalid

David Park wrote:


> You could implement your method by defining the rendered object as a pure 
> function and then mapping it onto the point set:
[snip]
> Another method might be to give some additional 3D structure to the set of 
> points. This might be done by drawing lines to the projection of the points 
> on one of the planes.
[snip]
> It would be interesting to see other ideas for giving visual structure to 
> such a set of 3D points.

The least effort approach is to use a program that does that for you. :-)
I believe the LiveGraphics Java applet by Martin Kraus does that automatically.
In the first example on this page
www.vis.uni-stuttgart.de/~kraus/LiveGraphics3D/examples/molecules.html
I can select the molecule and zoom in it, until I see the atoms closer 
to the POV bigger than those farther away.
If I remember correctly, the primitives used are simple Point[] 
statements with a fixed size -and color- for each type of atom.

cheers,
Peltio



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