cross3d: Draw a 3D cross in an rgl scene
Description
Draws a 3D cross or axis vectors in an rgl scene.
Usage
cross3d(centre = rep(0, 3), scale = rep(1, 3), ...)
Value
Used for its side-effect, but returns (invisibly) a 6 by 3 matrix
containing the end-points of three axes, in pairs.
Arguments
- centre
A scalar or vector of length 3, giving the centre of the 3D cross
- scale
A scalar or vector of length 3, giving the lengths of the arms of the 3D cross
- ...
Other arguments, passed on to segments3d