*To execute this script, enter grads and at grads command line type 'run animation.gs'

*This script will give an animation of sfc temperature 
*that has been slowed down for easier viewing

*Because this uses grads scripting language, all typical grads commands
*must be enclosed by single quotes

'sdfopen /grove3/iesuw/ccm1/CCM1-CNTROLPI-SEAE2025.nc'
'enable print sfcwind'
'set grid off'
'set lon -180 180'

*loop through all times
*it = counter
it=1

*set dbuff on 
*Sets double buffer mode on or off.  This allows animation to be
*controlled from a script.  The clear command also sets double
*buffer mode off.
'set dbuff on'

*while loop goes through the five seasons in the file
*will display each time period
while (it <=5)
 'set t 'it
 'set grads off'
 'display ts'
 'draw title CNTROLPI SFC TEMP SEASON #' it ''
 'print'

*need to swap the buffer after you display something
 'swap'

*sleep command pauses the animation so it goes more slowly
*number at end of command is number of seconds to sleep
*in this case, sleeps 1 second

 '!sleep 1'

*increment the counter
 it=it+1

endwhile