[R] Is there a way to draw 3d plot?

[Duncan Murdoch]

On 5/26/2006 3:39 AM, Antonio, Fabio Di Narzo wrote:
> 2006/5/26, Michael <comtech.usa at gmail.com>:
>> On 5/26/06, Uwe Ligges <ligges at statistik.uni-dortmund.de> wrote:
>>> Michael wrote:
>>>
>>>> Hi all,
>>>>
>>>> I have a 2D matrix, which has 100 rows, and 100 columns,
>>>>
>>>> I have a 2D matrix, with 100 rows and 100 columns,
>>>>
>>>> I want to display it using 3D plot, much like plot3d and mesh/surf
>>> functions
>>>> in matlab.
>>>>
>>>> Specifically, in matlab, I just need to do the following:
>>>>
>>>> --------
>>>> [X, Y]=meshgrid([0:0.01:0.99, 0:0.01:0.99]);
>>>> % Z is my 2D matrix,
>>>> surf(X, Y, Z);
>>>> --------
>>>>
>>>> Note that X and Y are created so that I can associate physical meaning
>>> onto
>>>> the x and y axis of the 3D plot.
>>>>
>>>> For example, my 100 rows represent 0, 0.01, 0.02, ... 0.99 here.
>>>>
>>>> In Matlab I can also drag in the graphic window and see from different
>>>> visual angle and perspective of the 3D plot...
>>>>
>>>> Are there similar functions in R that (1) show 3D plot; (2) let me
>>>> manipulate view angles easily?
>>> (1) See ?persp
>>>
>>> (1) *and* (2): See package "rgl".
>>>
>>> Uwe Ligges
>>>
>>>
>>>
>>> Thanks a lot,
>> But a glance at "rgl" seems requireing "shape", etc... and very
>> complicated...
>>
>> Any easier approaches?
>>
>> "persp" does not allow me to use mouse to rotate....
>>
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>>
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> 
> 
> Have you seen the example in 'rgl' man page?
> It seems sufficient something like:
> rgl.surface(x,y,z)
> 
> In that example, is also showed how to colorize the surface.

And an in-development update to rgl adds a number of new routines with 
interfaces similar to ones from the graphics package.  For example, 
persp3d is probably what Michael wants.

If you like playing with experimental versions and don't mind having 
defaults changing with new releases, etc., you can download a recent 
build from

http://www.stats.uwo.ca/faculty/murdoch/software

Bug reports and suggestions about the new stuff would be welcome.

Duncan