 fixing the orientation of the normal on the low/high faces of  the cylinder
 fixing the orientation of the normal on the low/high faces of
 the cylinder

pletzer/icqsol,gregvonkuster/icqsol,pletzer/icqsol,gregvonkuster/icqsol,pletzer/icqsol,gregvonkuster/icqsol,pletzer/icqsol,gregvonkuster/icqsol