open set pol lin 0 off 1.0 otf 420 480 2 delay 10 file BiE_lin0 start set pol lin 0 off 1.0 otf 420 480 2 delay 10 file BiE_lin0 start set pol lin 90 off 1.0 otf 420 480 2 delay 10 file BiE_lin90 start set pol lin 90 off 1.0 otf 420 480 2 delay 10 file BiE_lin90 start set pol lin 0 off 1.0 otf 420 480 2 delay 10 file BiE_lin0 start set pol lin 0 off 1.0 otf 420 480 2 delay 10 file BiE_lin0 start set pol lin 90 off 1.0 otf 420 480 2 delay 10 file BiE_lin90 start set pol lin 90 off 1.0 otf 420 480 2 delay 10 file BiE_lin90 start set pol lin 0 off 1.0 otf 420 480 2 delay 10 file BiE_lin0 at_end close start