Imagen:Gravitation space source.png

The curvature of spacetime around the source of the gravitational force

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Image generated with gnuplot, composite and bash.

Files:

gravitation

set terminal png transparent size 300,200 #write to png
set output "gravitation_space.png" # set filename
set multiplot #multiplot activation
set origin 0,0.3 #move graph
set size 1,1.4 #scale graph
set view 55,30,5.0,0.3 #set view x rotation, z rotation, scale, z-scale
set isosamples 60,60 #number of lines
set hidden3d #hide lines
unset xtics #no x axis values
unset ytics #no y axis values
unset ztics #no z axis values
set border 0 #no lines
set contour surface #radial lines
set cntrparam levels discrete -1, -1.25, -1.5,-1.75,-2.0,-2.5,-3.5
#levels
splot [-4.0:4.0] [-4.0:4.0] [-10:0]  -1/sqrt(x*x+y*y) with lines notitle
#3d-plot xrange, yrange, zrange, function

gravitation_source.png

gravitation.bash

#!/bin/bash 
#plotting
gnuplot gravitation
#add gravitation source
composite gravitation_source.png gravitation_space.png gravitation_space_source.png