Size of viewport

  I'm trying to create a multi-panel plot using vpXF, vpYF, vpWidthF
  and vpHeightF. The plot is taller than it is wide and it would fit
  nicely in letter sized paper. nglPaperOrientation is set to
  'portrait', but no matter what I do I can only plot inside a
  relatively short rectangular area with big margins at the top and
  bottom of the page. I tried changing nglPaperMargin, nglPaperWidth,
  nglPaperHeight and wkPaperSize but they don't seem to have any
  effect. How do I reduce the top and bottom margins in the plot? Or
  for that matter, how do I control the size of the margins so I can
  use more area in the page without "clipping" part of my plot?

  Thank you for your help,

-- 
Ivan Lima
Woods Hole Oceanographic Institution, MC&G MS #25
360 Woods Hole Road, Woods Hole, MA 02543-1543 USA
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