Re: pcolor bugs

[Ismael Núñez-Riboni]

Thanks for the answer. None of the bug reports seems to describe what I 
found with pcolor...

> If you're not sure it is a bug, you can describe what you found here.

1) NaNs are displayed as the lowest value of the color scale and not as 
blanks.

2) Pcolors with "shading faceted" or "shading flat" shadow anything else 
in the figure (like plot(x,y) or contours), i.e., only the pcolor is 
visible and everything else in the figure seems to be "behind" the 
pcolor. It does not happen with "shading interp" (here you can combine 
pcolors and other plots in the same figure).

3) I have to check this one deeper, but I think I get pcolor cells which 
seem to be above the maximum color code (they look red in the pcolor), 
even though all values are inside the color range. This seems to happen 
only in combination with "clf" and "hold on" (i.e., when I make a video 
of pcolors in one figure, cleared each time with clf).

Do these features sound familiar? They definetely look like bugs to me, 
unless I'm misunderstanding something.

Cheers, Ismael.