[R] rgl: insert pauses in animation sequence / movie formats other than gif?

[Michael Friendly]

On 6/7/2011 10:52 AM, Duncan Murdoch wrote:
>
> Something like this works:
>
> play3d(par3dinterp(times=c(0,5,6,11,12,17),
>              userMatrix=list(m1,m1,m2,m2,m3,m3),
>              method="linear"))
>
> The "linear" says to use linear interpolation between time points, so 
> it will stay exactly constant when the userMatrix doesn't change.  If 
> you leave it out, it uses spline interpolation, and that gives some 
> irritating overshooting.
Thanks very much for this, Duncan.

Something like this would make an excellent documentation example for 
play3d/movie3d, or perhaps better
par3dinterp, even under \dontrun{}.

I take it that the times are relative rather than absolute, and time is 
scaled according to duration and
fps when the scene is play3d()'d.  Yes?  If so, the description for 
time= could also be clarified.

best,
-Michael

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