[R] How to display an image on RGL plot?

Barry Rowlingson b.rowlingson at lancaster.ac.uk
Thu Nov 26 09:18:51 CET 2009


On Thu, Nov 26, 2009 at 7:14 AM, Vladimir Eremeev <wl2776 at gmail.com> wrote:

> The underlying picture is a JPEG image, loaded with the rimage package and
> coerced to the matrix.
> Spheres denote control points, collected from this picture and must be
> situated over the certain points of the image.
> I display the image with rgl.points.
> In case of the standard video camera image (704x576) it has to display over
> 400000 points which is rather slow and memory consuming.
> How can I put an original JPEG on this plot?
>
> Another problem is that the picture is color initially, but was converted to
> the grayscale. I'd like to preserve colors.
>

 Try using surface3d with a flat surface (z=0) and a matrix of colours
in the col= argument. See help(surface3d) for an example.

 Also STOP POSTING!!! There seems to be about 8 copies of your message
in my inbox!!!

Barry



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