New plotting function surfl

[Ben Abbott]

On Nov 9, 2008, at 10:54 AM, Kai Habel wrote:

> Hello all,
>
> the attached changeset adds the new plotting function surfl. To work
> properly it requires the previous changeset about surface normals to  
> be
> applied as well.
>
> The function surfl plots lighted surfaces. For best visual experience
> colormaps like pink, copper, bone, or gray should be used.
>
> For example:
>
> colormap(bone);
> surfl(peaks);
> shading interp;
>
> The function should work pretty well, so please give it try and report
> bugs.

Very cool!

It works for me on Mac OSX with Aquaterm as well as with x11. I'm  
unable to try wxt at the moment ... I broke it when I started running  
the developers sources for gnuplot :-(

To be sure, what *I* see is what *you* see, I've attached a pdf.

Ben

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