On 01/09/2008 7:11 AM, Chibisi Chima-Okereke wrote:
Hi All,
I would like to be able to use play3d() to translate the view along a
surface, and zoom in and out. All the examples in play3d() function
description are of rotations.
I would also like to know if there is a method of creating a legend of for
the 3d surface using rgl package.
You can use any 4x4 matrix you want as a userMatrix setting: see
?matrices for the list of support functions. For translations, you'd
use translate3d instead of rotate3d.
Creating a legend is harder, because it will tend to move as you move
the surface. rgl doesn't yet have a way to apply different user
transformations to different parts of the scene.
Duncan Murdoch
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