function wireplot(v,e)
%
%  DESCRIPTION:
%    Makes a wire plot of the polyhedron defined by vertices
%    in the rows of v and edges in the rows of e.
%    The plot is in the default 3-D view,
%    without axis labeling, tick marks and background.
%
%  REQUIRED:
%    size(v,2) = 3, i.e.: v has three columns;
%    size(e,2) = 2, i.e.: e has two columns; and 
%    all elements in e are in the range 1:size(v,1).
%
%  EXAMPLE:
%    v = [0 0 0; 2 0 0; 1 2 0; 1 1 1];
%    e = [1 2; 2 3; 3 1; 1 4; 2 4; 3 4];
%    wireplot(v,e)  % shows a tetrahedron 
%
axis off
hold on
for i=1:size(e,1)
   x = [v(e(i,1),:); v(e(i,2),:)];
   plot3(x(:,1),x(:,2),x(:,3));
end;
view(3)
hold off