On 23/07/2010 7:39 AM, james.fo...@diamond.ac.uk wrote:
Dear RGL experts,
I haven't been able to add greek letters to my rgl plot3d.
I have tried "expression" with no success.
Here is the interested bit:
> library(rgl)
> cb <- cube3d()
> plot3d(cb,xlab=expression(alpha),ylab="",zlab="",box=FALSE,alpha=0.5)
The expression(alpha) appears as "alpha", rather than as a greek symbol.
I suspect greek and mathematical symbols in general can be added to a plot3d
in rgl. Is that true?
You can probably add the symbols if you choose a font that contains
them, but there is no support for the plotmath mechanism that's in the
standard graphics system.
I think the best you could do would be to typeset the label into a
bitmap, then display it as a sprite or texture in rgl.
Adding plotmath support to rgl is something that would be really
interesting, but quite difficult.
Duncan Murdoch
J
Dr James Foadi PhD
Membrane Protein Laboratory (MPL)
Diamond Light Source Ltd
Diamond House
Harewell Science and Innovation Campus
Chilton, Didcot
Oxfordshire OX11 0DE
Email : james.fo...@diamond.ac.uk
Alt Email: j.fo...@imperial.ac.uk
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
