Help with patch code in Matlab

[Rik]

3/23/14

Could someone run the following code example under Matlab?

pts = [ 10.6946   -4.0000    3.0253;
        10.6946   -3.7071    3.0253;
        13.1352   -3.7071    2.9571;
        13.1352   -4.0000    2.5862 ];
facet = [ 1, 2, 3, 4 ];
p = patch ('Faces',facet, 'Vertices',pts);
saveas (gcf, 'patch_test.png')

Under Octave, OpenGL seems to be swallowing one of the vertices and it
creates a triangle instead of a quadrilateral patch.

--Rik