Re: [Gnuplot-info] Help with plotting 4D data

[Andy M. <and...@gm...>]

On 6/15/07, Hans-Bernhard Br=F6ker <HBB...@t-...> wrote:
> Andy Main wrote:
>
> > What I did is create two data files, one for the surface position data
> > in the form:
> [...]
> > and another one the same for the colour data, but with the z column
> > replaced by p
>
> That was the wrong idea.  You should just have put the 'p' (and 's')
> column in the same file as x, y and z.  gnuplot can pick any three or
> four columns out of a multi-column data file and use them as plot
> coordinates.
>
> Read 'help datafile', 'help pm3d' and 'help splot using' thoroughly, and
> you should be able to figure out how to get the plot you need.  Pay
> particular attention to the concept of grid data.
>

Yes, I was just in the process of posting back to the list.  I thought
I read that the data needed to be in triples, but a nice coffee fixed
this for me.  Its amazing how you can tie yourself in knots for no
reason!

Thanks for your help,

Andy.