Two-dimensional gnuplot (including time)

These options produce data suitable for using with the gnuplot visualization client in the format
t x y f(t,x,y,z=fixed):

  IOASCII::out2D_every = 1
  IOASCII::out2D_vars = "wavetoy::phi"
  IOASCII::out2D_style = "gnuplot f(t,x,y)"

Output file: phi_xy_[1].asc

  #Parameter file wavetoy.par
  #Created Sun 19 Aug 2001 16:33:07
  #x-label x
  #y-label y
  #z-label WAVETOY::phi (z = 0.0000000000000), (zi = 1)


  #Time = 0.0000000000000
  0.0000000000000		-0.5000000000000		-0.5000000000000		0.0000000000000
  0.0000000000000		0.0000000000000		-0.5000000000000		0.0000000000139
  0.0000000000000		0.5000000000000		-0.5000000000000		0.0000000000000

  0.0000000000000		-0.5000000000000		0.0000000000000		0.0000000000139
  0.0000000000000		0.0000000000000		0.0000000000000		1.0000000000000
  0.0000000000000		0.5000000000000		0.0000000000000		0.0000000000139

  0.0000000000000		-0.5000000000000		0.5000000000000		0.0000000000000
  0.0000000000000		0.0000000000000		0.5000000000000		0.0000000000139
  0.0000000000000		0.5000000000000		0.5000000000000		0.0000000000000



  #Time = 0.2500000000000
  0.2500000000000		-0.5000000000000		-0.5000000000000		0.0000000000000
  0.2500000000000		0.0000000000000		-0.5000000000000		0.0000000000000
  0.2500000000000		0.5000000000000		-0.5000000000000		0.0000000000000

  0.2500000000000		-0.5000000000000		0.0000000000000		0.0000000000000
  0.2500000000000		0.0000000000000		0.0000000000000		0.4980695458846
  0.2500000000000		0.5000000000000		0.0000000000000		0.0000000000000

  0.2500000000000		-0.5000000000000		0.5000000000000		0.0000000000000
  0.2500000000000		0.0000000000000		0.5000000000000		0.0000000000000
  0.2500000000000		0.5000000000000		0.5000000000000		0.0000000000000



  #Time = 0.5000000000000
  0.5000000000000		-0.5000000000000		-0.5000000000000		0.0000000008425
  0.5000000000000		0.0000000000000		-0.5000000000000		0.0019304541362
  0.5000000000000		0.5000000000000		-0.5000000000000		0.0000000008425

  0.5000000000000		-0.5000000000000		0.0000000000000		0.0019304541362
  0.5000000000000		0.0000000000000		0.0000000000000		-0.7509652270577
  0.5000000000000		0.5000000000000		0.0000000000000		0.0019304541362

  0.5000000000000		-0.5000000000000		0.5000000000000		0.0000000008425
  0.5000000000000		0.0000000000000		0.5000000000000		0.0019304541362
  0.5000000000000		0.5000000000000		0.5000000000000		0.0000000008425