% -*- texinfo -*-
% @deftypefn {Function File} {} shading (@var{type})
% @deftypefnx {Function File} {} shading (@var{ax}, @dots{})
% Set the shading of surface or patch graphic objects. Valid arguments
% for @var{type} are
%
% @table @code
% @item 'flat'
% Single colored patches with invisible edges.
%
% @item 'faceted'
% Single colored patches with visible edges.
%
% @item 'interp'
% Color between patch vertices are interpolated and the patch edges are
% invisible.
% @end table
%
% If @var{ax} is given the shading is applied to axis @var{ax} instead
% of the current axis.
% @end deftypefn