How to draw distinct line segments in gnuplot using splot

Question

I was under the impression that introducing an empty line between points creates disconnected plots.

If file Box.dat contains the following, I expect exactly two dis

Answer 1

In 2D (using plot) it is true, that an empty line leads to disconnected line parts, see e.g.

set autoscale fix
set offset 0.5,0.5,0.5,0.5
plot 'Box.dat' using 1:3 w l

In 3D (with splot) a newline separates two lines of a surface. The same points of neighboring lines are then connected to form a surface. In order to get disconnected line segments in 3D you must use two newlines:

# Box.dat
0 0 0 
1 0 0


0 0 1  
1 0 1