R help - Sep 2010 - lattice package - wireframe plot : adding more than one surface and addiding a curve overlaid on the plot

Dear R help,

Suppose I have a dataframe with three columns named  p, v and C.

Here C is a function of both p and v.  I can plot the surface C(p,v) using the
package lattice using the function wireframe.

Now if I have another dataframe - with 2 columns named p_ind and v_ind and pind
is a function of v_ind.

I would  like to overlay the plot of the curve p_ind, v_ind and C(p_ind, v_ind)
onto my previous plot.

I haven't found a way to do this.

Please help.

Raff. 
   
 		 	   		  
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On Sat, Sep 11, 2010 at 2:28 AM, Raffaello Vardavas
<r_vardavas at hotmail.com> wrote:
>
> Dear R help,
>
> Suppose I have a dataframe with three columns named ?p, v and C.
>
> Here C is a function of both p and v. ?I can plot the surface C(p,v) using
the package lattice using the function wireframe.
>
> Now if I have another dataframe - with 2 columns named p_ind and v_ind and
pind is a function of v_ind.
>
> I would ?like to overlay the plot of the curve p_ind, v_ind and C(p_ind,
v_ind) onto my previous plot.
>
> I haven't found a way to do this.
This is going to be fairly difficult with lattice. I would suggest
trying the rgl package instead.

-Deepayan