Outputing image fields

[V. <gae...@en...>]

   Hi,

  Is there a way to output a pm3d plot to an bitmap image where the image
would be, pixel by bixel, a height field of the data. That would be
feasily feasable with the png output driver with option "crop", if one=20
could control precisely the size of the bitmap comming out.

  If this is not possible, is there a simple aglorithme to determine the
size of the area that gets cropped ?

  Ga=EBl