Re: shading() behavior

[Michael Goffioul]

On Thu, Jul 25, 2013 at 4:58 PM, Catalin Codreanu <address@hidden> wrote:

2013/7/25 Rik <address@hidden>:
> 7/25/13
>
> Could someone run the following %!demo block code in Matlab?
>
> clf;
> colormap ('default');
> [~,~,Z] = peaks();
> [Fx, Fy] = gradient (Z);
> surfc (Z, Fx+Fy)
> shading interp
>
> What does this do to the contour lines underneath the surface object?
>
> In Octave it messes up the contour lines because the contours are patch
> objects bundled up into an hggroup.  I'm wondering if we shouldn't limit
> the shading command to apply to just the passed in object and one level of
> children.

Is there a reason to implement the contour lines with patch objects (compatibility maybe)? Maybe they should be implemented with regular lines?

Michael.