RE: [ferret_users] How to draw a box to represent the regional-scale study areas in a field over a larger area?

[Yun.Li@xxxxxxxx]

Thanks, Bill.

That is what I wanted!

Cheers,

Yun 

-----Original Message-----
From: William S. Kessler [mailto:William.S.Kessler@xxxxxxxx] 
Sent: Thursday, 11 March 2010 10:16 AM
To: Li, Yun (CMIS, Floreat)
Cc: Ferret users
Subject: Re: [ferret_users] How to draw a box to represent the regional-scale study areas in a field over a larger area?

Do you mean to cimple draw lines and boxes over an existing plot?
One easy way to do this is to list your points in a plot/vs command:

plot/vs/over/nolab/line=8 {115,120},{-30,-35}			! thick red diagonal  
line

plot/vs/over/nolab/line=10 {135,140,140,135,135}, 
{-32,-32,-36,-36,-32}     ! thick blue box

Or do you want to blank out the filled areas outside the region? Then  
use masking. It's in the documentation.

Billy K

On 10 Mar 10, at 5:18 PM, Yun.Li@xxxxxxxx wrote:

> Dear Ferret users,
>
> Could you please let me know how to draw a box to represent the  
> regional-scale study areas in a field over a larger area?
>
> More specifically, for example, I want a ferret plot for areas: (1)  
> Southwest Western Australia (SWWA, southwest of the line joining 30° 
> S, 115°E and 35°S,120°E); (2) South Australia (SA, the box area  
> bounded by 32°-36°S and 135°-140°E); (3) Victoria (VIC, the box  
> area bounded by 37°-39°S and 143°-147°E), and then overlay it on a  
> field (e.g., SLP in July 2009) over a larger area (20°N-60°S,   
> 80-180°E)?
>
> Thanks for your help.
>
> Yun Li
> CSIRO, Australia
>
>