[R] [Rd] Display an Image on a Plane
B.Rowlingson at lancaster.ac.uk
Fri Jan 20 11:55:22 CET 2006
[more an R-help than R-dev thing]
Ben Bolker wrote:
> Labbe, Vincent (AEREX <Vincent.Labbe.AEREX <at> drdc-rddc.gc.ca> writes:
>>I am new to R and I would like to display an image on a plane in a 3D plot,
>>i.e. I would like to be able to specify a theta and a phi parameters like in
>>the function persp to display a 2D image on an inclined plane.
> can't think of an easy way to do this: what do you mean by "image"
> exactly? A bitmapped image from a file? Or something like the
> output of image()? If the latter, you may be able to cobble together something
> using the trans3d() function (i.e., manually recreating an image()
> by drawing colored squares, but transforming each of the to the 3D
> perspective). If the former, you might be able to do something with
> the pixmap package ...
I think once you get into doing fancy visualisations like this then
you may find a solution outside of R. The front runners are probably:
Not sure of the R-integration possibilities here, but you'd probably
have to export your data to a file and pick it up in the visualisation
package. You'd also have to build your complete plot from scratch in the
package if its really just an R persp() you want to add to. Most of
these packages can do persp()-style plots without even *ahem* persp-iring.
Some of these packages are scriptable from Python or Tcl, which could
make for tighter integration with R. A full R 3d graphics device would
be nice... Rgl could be there already! -
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