MathGroup Archive 1998

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Change viewpoints in real time


  • To: mathgroup@smc.vnet.net
  • Subject: [mg11318] Re: Change viewpoints in real time
  • From: Martin Kraus <mkraus@theorie3.physik.uni-erlangen.de>
  • Date: Fri, 6 Mar 1998 00:40:29 -0500
  • Organization: Univ. Erlangen-Nuernberg, Theoret. Physik III
  • References: <6dg1t2$2et@smc.vnet.net> <6dito4$9mo@smc.vnet.net>

Paul Abbott wrote:
> 
> Nick Migliozzi wrote:
> 
> > Let me tell you a feature that is missing from Mathematica which is
> > sorely missed, in my opinion:  The ability to grab a 3D graphic with the mouse
> > and change its viewpoints in real time.  One has to go into the
> > ViewPoint changer  (alas!) Why did Wolfram write it this way, I'll never know!
> >
> > Does anyone know of a package or a special notebook that can be added to
> > Mathematica that will give it this feature?
> 
> Dynamic Visualizer does exactly what you want.  I suggest that you
> contact the Developer of Dynamic Visualizer, Lawrence Angrave
> <angrave@milohedge.com>, to find out the present status of this
> package.
> 
> Cheers,
>         Paul

Let me summarize: In order to rotate three-dimensional Mathematica
graphics
we have the commercial programs Dynamic Visualizer
(http://www.milohedge.com/)
and Conix 3D Explorer
(http://store.wolfram.com/view/3dexplorer/?34FD4902-7266). There is also
a free VRML converter
(http://www.mathsource.com/cgi-bin/MathSource/Enhancements/Interfacing/Web/0208-336)
and a free program using MathLink and OpenGL 
(http://www.mathsource.com/cgi-bin/MathSource/Enhancements/Interfacing/Graphics/0209-056)
and finally my Java applet
(http://theorie3.physik.uni-erlangen.de/~mkraus/Live.html)

HOWEVER THIS WAS NOT THE QUESTION! :)

As far as I understood, the question was about a possibility to find
nice
values for the ViewPoint (and ViewCenter) option (by rotating the
Graphics3D 
object). My Java applet can calculate these values,  but I do not know
whether any of the other programs are able to  do so. (The VRML
converter and the free MathLink program probably do not offer
this service.) In fact this task is nontrivial as soon as you do NOT use
BoxRatios->Automatic. (As far as I remember ViewPoint and ViewCenter
are even 
using different coordinate systems.)

OK, this was just to clarify the problem and glorify my applet. ;)

Martin Kraus



  • Prev by Date: Square roots and Solve/Reduce
  • Next by Date: Re: FindRoot accuracy/precision
  • Prev by thread: Re: Change viewpoints in real time
  • Next by thread: Re: Change viewpoints in real time