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Re: ViewPoint and RealTime3D

• To: mathgroup at smc.vnet.net
• Subject: [mg28632] Re: ViewPoint and RealTime3D
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Thu, 3 May 2001 04:28:23 -0400 (EDT)
• Organization: Universitaet Leipzig
• References: <9cfrh6$gm7@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Hi,

why not using MathGL3d form

http://phong.informatik.uni-leipzig.de/~kuska/mathgl3dv3/

?? you can edit the view point with realtime preview
(switch the synchron main window on) in the view point editor

and call MVGetViewPoint[] in your notebook to copy the
data into the notebook.

i.a

MVShow3D[yourGraphics3d]

(* edit the viewpoint *)

vp=MVGetViewPoint[];

Show[yourGraphics3d,ViewPoint->vp]

will work.

Regards
  Jens

Hugh Goyder wrote:
> 
> Dear Newsgroup,
> 
> How can I extract the ViewPoint from a graphic once I have found a nice
> orientation using RealTime3D or the simpler method recently discovered by
> Jens-Peer Kuska? (Congratulations to Jens for finding this see .)
> 
> In detail I want to do the following.
> 
> Use RealTime3D, or more probably Jens method, to make a graphic that can be
> rotated
> Use the mouse to rotate the 3D graphic until I get a nice view
> Find out the ViewPoint corresponding to my nice view
> Paste this ViewPoint back into the original graphic
> Redraw the original graphic with my nice view and all the options available.
> 
> This would avoid the use of the 3D ViewPoint Selector which I find
> difficult to use because I cannot imagine my graphic in the cube provided
> there. By using NotebookCreate[] in a small variation of Jens method the
> real time graphic is placed in a new notebook. This is getting similar to
> the 3D ViewPoint Selector. Presumably, Wolfram will eventually put our
> graphics into the 3D ViewPoint Selector so that this process can be automated.
> 
> Thanks in advance for your responses.
> 
> Hugh Goyder