[gradsusr] arbitrary cross section for single level gridded data

[Dibas Shrestha]

Dear grads users,

My problem is related to arbitrary cross sectional plot of rainfall for single level. Although I found the script for multiple level (Z), I couldn't modify it with my purpose. Actually, I want to plot rainfall in the y-axis and distance (eg, 85E and 25N to 90E and 30N), in the x-axis for gridded data.  

Can you help me for this issue? Thanks in advance. 
Any suggestion will be greatly appreciated!
  

Best regards
Dibas
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