[gl2ps] Having GL_Points like square

[Laurent Garnier]

Hi, 

I use the following in order to draw GL_POINTS like square on screen, but on gl2ps (eps) it appears like circle :
  glDisable (GL_POINT_SMOOTH);
  glBegin (GL_POINTS);
  glVertex3f(0.,0.,0.);
  glEnd();     

Any idea ?

Cheers,
Laurent