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Curve with arrow.



Dear Ferret users,

Here I encounter a question:
How can I draw a curve with an arrow by command

Plot/vs/line ...

to sign the patterns of velocity?
 
BTW, how to smooth such curve?

Thank you very much,
 
Jian
 
***************************************
Jian Ma
 
M. S. in Physical Oceanography
The First Institute of Oceanography
State Oceanic Administration
P. R. China
 
No. 6 Xian-Xia-Ling Road, Qingdao 266061
Tel: 86-532-8967401
Fax: 86-532-8967400
URL:
www.fio.org.cn
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