axis return size

[David Woodburn]

I modified axis to only return 4 elements if the current figure is 2D:

function curr_axis = __axis__ (ca, ax, varargin)

  if (nargin == 1)
    if (nargout == 0)
      set (ca, "xlimmode", "auto", "ylimmode", "auto", "zlimmode", "auto");
    else
      xlim = get (ca, "xlim");
      ylim = get (ca, "ylim");
      [azimuth, elevation] = view();
      if elevation == 90
        curr_axis = [xlim, ylim];
      else
        zlim = get (ca, "zlim");
        curr_axis = [xlim, ylim, zlim];
      end
    endif


This matches Matlab's style.

David Woodburn
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