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Re: New user comments & questions
re: overlaying polygons and the "GO land" script
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On Oct 8, 10:51am, Donald S. Dunbar wrote:
> Subject: New user comments & questions
> Having very recently set ferret up on my Sun Sparc 20, and having looked
> through much of the documentation and tried several examples, two
> remarks come immediately to mind:
>
> 1. Ferret seems to be well-designed and provides many powerful and
> useful features.
Hi Donald,
Thanks from "the developers".
> 2. There seems to be one glaring omission: the ability to draw arbitrary
> polygons (e.g., coastlines, grid overlays, etc.).
>
> Can I possibly be correct about #2?
The Ferret command PLOT/VS/LINE allows you to draw arbitrary polygons.
A command such as
yes? PLOT/VS/LINE/OVERLAY my_longitudes, my_latitudes
is typically used to lay land boundaries over a plot.
There is a tool (script) provided with Ferret
yes? GO land
that is made to overlay continental and geo-political boundaries.
Use yes? GO/help land to see the instructions.
If you need higher resolution land boundaries than the ones provided in GO land
we have a script and data base that does this but we havn't had time to
formalize it into a "tool" for general use yet.
Happy Ferreting - steve
--
| NOAA/PMEL | ph. (206) 526-6080
Steve Hankin | 7600 Sand Point Way NE | FAX (206) 526-6744
| Seattle, WA 98115-0070 | hankin@pmel.noaa.gov
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