Re: howto plot data in 3D

[Martin Helm]

Am Montag, 18. Oktober 2010, 23:26:58 schrieb pathematica:
> Ben
> 
> bpabbott wrote:
> > Both mesh and surf accept a fourth argument which is mapped to the
> > colormap.
> > 
> >     mesh (x, y, z, c)
> > 
> > Unfortunately the documentation doesn't mention it. I'll add it to the
> > bug tracker.
> 
> (Octave 3.2.3; Gnuplot 4.4; Ubuntu 10.04)
> 
> Inspired by these comments, I have been trying (unsuccessfully) to change
> the color of the mesh plot. I have tried a variety of ways to pass the
> fourth parameter without success.
> 
> For example, I have tried (attempting "green" - I have also tried without
> quotes and small integers):
> mesh(tx, ty, tz, "g")
> 
> This provokes a typical error message of the form:
> error: surface: z and c must have same size
> 
> I would be grateful for any comments.
> 
> Thanks

Its is more a workaround, but you can set the color to constant 1 for the 
whole mesh and redefine the colormap to the value green

mesh (x, y, z, ones(size(z)))
colormap([0 1 0])