Re: ViewVector->{0,0,0}

• To: mathgroup at smc.vnet.net
• Subject: [mg102116] Re: [mg102104] ViewVector->{0,0,0}
• From: Syd Geraghty <sydgeraghty at me.com>
• Date: Thu, 30 Jul 2009 05:29:51 -0400 (EDT)
• References: <200907290955.FAA21746@smc.vnet.net>

```Hi Otto,

http://demonstrations.wolfram.com/FlightThroughAStarCluster/

contributed by Frederick Wu

and

http://demonstrations.wolfram.com/CameraAnimationsOnCirclesSpiralsHelicesAndConicalSpirals/

contributed by Andreas Filler.

These would be a great starting code examples that with your own
modifications will let you learn the intricacies of ViewPoint,
ViewVector, ViewCenter, etc ...

The Demonstrations project is generally a good place to refer to when
first struggling with how to implement a new project using Mathematica.

Hope that helps ... Syd

Syd Geraghty B.Sc, M.Sc.

sydgeraghty at mac.com

Mathematica 7.0.1 for Mac OS X x86 (64 - bit) (18th February 2009)
MacOS X V 10.5.6
MacBook Pro 2.33 GHz Intel Core 2 Duo  2GB RAM

On Jul 29, 2009, at 2:55 AM, Otto Murphy wrote:

> I want to plot points in 3d space which will represent stars, and then
> make a visualization that shows these stars from the position of an
> observer on the surface of a planet which will also have an absolute
> position in 3d space. I was toying with the idea of repositioning the
> camera to achieve this...
>
> I get weird behavior when I use a view vector of magnitude 0:
>
> Graphics3D[Point[{0, 1, 1}], ViewVector -> {0, 0, 0}, Axes -> True,
> AxesLabel -> {x, y, z}]
>
> Anyone have any ideas?
>

```

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