[Gnuplot-info] 2D cross-section of 3D plot - possible?

[Paweł R. <go...@gm...>]

Hello,

I'm currently working on some fluid modelling and get a bunch of 4D
data - mostly velocity field in cartesian coordinates.

I'm wondering if it is possible to make a 3D plot of this data by
limiting the range of 4th data column?
For example to plot v(x,z), but only for a certain value of y.

A simpler but essentially the same problem is to make a 2D plot from
3D data - eg. to plot v(z) for a specified value of y.

I know I can make a 3D plot with a range limit for one axis, but it's
still a 3D plot which contains only 2D data, so it's not what I want.

Anyone can help?

greetings,
Paweł