gnuplot-info

[Gnuplot-info] how to plot 2d lines on 3d picture

[Yueguang <ygx...@gm...>]

Hi, everyone:
I am doing the job to plot ion orbit in electric field. I have plotted
the electric field using following command:

gnuplot>set pm3d map
gnuplot>splot 'pro16-0-0' matrix

And, I have figured out the ion orbit, it could be plot easily by "
splot 'ion-5' with lines".
The problem is that how to plot the two pictures at the same time using
the same Coordinate. I mean plot the orbit on the electric field picture.

Thank you!

Guang Yue

[Gnuplot-info] how to plot 2d lines on 3d picture

[Gavin B. <gav...@gm...>]

If I understand you correctly this is a bit of a pain, but can be done
using multiplot. you usually have to set the size and ranges... heres
a script I used to plot a field using pm3d and overlay some points (2D
data, but splotted so the z axis is greater than the z-axis of the
pm3d plot).

Hope this helps.

reset
set xrange[10:54]
set yrange[10:54]
set cbrange[0:0.5]
unset ztics
set view 0,0
set size square

set term post color
set output 'out.ps'
set multiplot
set pm3d
set palette defined (0 "white", 0.5 "red")
unset surf
splot 'np333_field10000.dat' u 1:2:3
unset pm3d
set surf
splot 'np333_particle10000.dat' u 1:2:(1) w p pt 7 ps 0.5 lt -1
unset multiplot
set term x11
set output

!gv out.ps

Re: [Gnuplot-info] how to plot 2d lines on 3d picture

[Hans-Bernhard B. <HBB...@t-...>]

Yueguang wrote:
> Hi, everyone:
> I am doing the job to plot ion orbit in electric field. I have plotted
> the electric field using following command:
> 
> gnuplot>set pm3d map

That's the source of your problem.  By using this out-of-date syntax, 
you're activating implicit pm3d mode, which would make *every* splotted 
dataset a pm3d, so you can no longer do a line splot.  That used to be 
the only way, but that's been changed several versions ago.

> gnuplot>splot 'pro16-0-0' matrix
> 
> And, I have figured out the ion orbit, it could be plot easily by "
> splot 'ion-5' with lines".

	set view map
	set pm3d explicit  # the default, but let's be sure
	splot 'pro16-0-0' matrix w pm3d, 'ion-5' w l