clear (or just c)
Issued without parameters, the clear command does pretty
heavy duty clearing of many of the GrADS internal settings. Parameters
can be added to limit what is cleared when using more advanced
features.
WARNING: If you make any error in the syntax of clear
then GrADS does the full clear
c
events flushes
the events buffer (e.g., mouse
clicks)c graphics clears the
graphics, but not the
widgetsc
hbuff clears
the display buffer when in double buffer
mode