Help pm3d

[rizesimoes]

Hi Octave's users,

I need to plot multiple graphics on a octave program, specifically 2 plots 3D 
and 2 plots 1D.
They must be  together in the same figure.
The 3D plot uses pm3d. 

I have a problem to unset the pm3d, 
I tryed the  __gnuplot_raw__("unset pm3d");
but the 2D plots window apeared empty, after it.

For instance,
...
figure(1)

__gnuplot_set__("palette model RGB file 'mod_colormap.dat'")
__gnuplot_set__("logscale ycb");
__gnuplot_set__("pm3d map at s");
__gnuplot_splot__ wcc
__gnuplot_raw__("unset pm3d");
__gnuplot_plot__  ww

figure(2)
% plot the original signal
plot(xs,ys);
axis([min(xs) max(xs) min(real(ys))-0.05*(max(real(ys))-min(real(ys))) 
max(real(ys))+0.05*(max(real(ys))-min(real(ys)))])

.....

the error message is

** warning: can't use pm3d for 2d plots


Could someone help me?
Any tip?

All the best,

Marize