Re: [Gnuplot-info] splot pm3d advice

[Anirban B. <ban...@gm...>]

Thanks to all the people who responded :) .

My problem was due to (as has been clearly pointed out) that

1) the data was not in the correct format, I did not separate it into blocks

2) No need to use dgrid3d if the data is OK

The figures are perfect now :)

Thanks,
-A

On 3/27/07, Anirban Banerjee <ban...@gm...> wrote:
>
> Hi all,
>         Gnuplot n00b here :) ... my question might seem a bit naive. I
> searched the list for similar problems and found some answers but none were
> exactly the same, and hence this mail.
>
> The issue I am facing is while trying to plot a 3d graph with splot using
> pm3d. I have  data file with data in the following format
>
> x y z
> x1 y1 z1
> .
> .
> .
> and so on ...
>
> x ranges from 1 to 500 , y from 1 to 6 and z from 1 to 100 .
>
> when I use splot "data" u 1:2:3 w lines/points I can see that the scale on
> the z axis is 0 to 100, but as soon as I type
>
> set dgrid3d
> splot "data"  u 1:2:3 w pm3d
>
> the resulting graph seems to get the z axis scaled down to 0 to 18 or 30
> if I use set dgrid3d 30,30 .. why is this so..why is the z axis being
> scaled???
>
> Should I turn of autoscaling..? Just as an aside the data is pretty
> "spiky" lots of  near 100 z values surrounded by nearly 0's..etc..
>
> Would really appreciate any advice on this :) .
>
> Thanks,
> -A
>