Re: slice implementation

[Kai Habel]

John W. Eaton schrieb:
> On 23-Nov-2007, Kai Habel wrote:
>
> | I have implemented the slice function, which is useful to visualize 3D
> | scalar fields by means of slices. Since we have some pending patches for
> | __go_draw_axes__, ... (and I have some applied locally) I am not sure if
> | slice works without warnings or errors using the current cvs. If series
> | of patches from David is applied, I will look at slice again and see if
> | some modifications are needed.
> | 
> | I think slice shows a further problem with gnuplot, If you take the
> | example code and try to plot three orthogonal slices
> | slice(X,Y,Z,V,0,0,0) instead of slice(X,Y,Z,V,[],0,[]) you see a
> | distorted plot, because the depth ordering does not work for this case.
> | Maybe you have an idea?
>
> I added this function.  I'm seeing
>
>   octave:5> slice (x, y, z, v, xi, yi, zi);
>   error: surface::defaults: not implemented
>   error: called from `surface' in file 
> `/home/jwe/src/octave-trunk/scripts/plot/surface.m'
>   error: evaluating assignment expression near line 163, column 17
>   error: evaluating if command near line 130, column 3
>   error: called from `slice' in file 
> `/home/jwe/src/octave-trunk/scripts/plot/slice.m'
>          line 1059: undefined variable: Inf
>
> Is there some pending patch that is required to make this work?
>
> Thanks,
>
> jwe
>
>   
Yes,

see for example the discussion here:
http://www.nabble.com/mesh-problem-2.9.17%2B-tf4849155.html1


Kai