Slice plots

The slice_plot structure sets the planes on which data should be plotted. To define a plane specify the lower left, lower right and top left points. The number of grid points in the horizontal and vertical directions are also needed.

Example:

begin slice_plot
slice 0.0 0.0 0.0  1.0 0.0 0.0   1.0 0.0 1.0  50    100 
end slice_plot
  (for a cubic lattice) plots data on the xz plane with 
  50 grid points in the x direction and 100 in the z

The start and end coordinates of slice_plot are relative to the realspace lattice vectors.