set term pngcairo size 1024,1024 font ',10'
# set output 'test.png'
  set output '| ffmpeg -y -r 30 -f image2pipe -i - -vcodec libx264 -profile:v baseline -pix_fmt yuv420p movie.mp4'
  set colors classic
  set encoding utf8
  set minussign

  r = 9000
  set xrange [-r:r]
  set yrange [-r:r]
  set zrange [-r:r]
  set view equal xyz
  set ticslevel 0
  set border 1+2+4+8 + 16+32+64+128 + 256+512+1024+2048
  unset key
  set label 1 't  = ' at screen 0.95,0.95 right offset -3.7,0
  set label 2 sprintf('%4.1f',0) at screen 0.95,0.95 right

  set xtics format '% .0f' offset -1.5,-0.6
  set ytics format '% .0f' offset  3.1,-0.25
# set format x ''
# set format y ''
# set for [i=-15000:15000:5000] label gprintf('% .0f',i) at i,-r,-r center offset -2,-1.0
# set for [i=-15000:15000:5000] label gprintf('% .0f',i) at r,i,-r  center offset  4,-0.5

  do for [i=0:200] {
    file = sprintf('snap_%03d.txt',i)
    s = system('read comm time <'.file.'; echo $time')
    t = s+0
    set label 2 sprintf('%4.1f',t) at screen 0.95,0.95 right
    splot file u 2:3:4 w p pt 7
  }