[gradsusr] [Non-DoD Source] Re: How to plot a single vector or number ona GrADS plot background (UNCLASSIFIED)

Fri May 4 11:31:56 EDT 2018

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Lyndon,

                  I want to plot individual vectors representing the observed wind (speed and direction). I only have a few of these (~10). I can plot a character using draw string (setting the location, orientation, color and so on), but how do I plot a line with an arrow?

Pat

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From: gradsusr [mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Lyndz
Sent: Friday, May 04, 2018 9:11 AM
To: GrADS Users Forum <gradsusr at gradsusr.org>
Subject: Re: [gradsusr] [Non-DoD Source] Re: How to plot a single vector or number ona GrADS plot background (UNCLASSIFIED)

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Hi Patrick,

I'm not sure what you really want to plot here. Can you send your desired output (sample image) here and the smallest data sample if possible?

There is a script in this link: Caution-http://www.jamstec.go.jp/frsgc/research/iprc/nona/GrADS/plot-vector.html < Caution-http://www.jamstec.go.jp/frsgc/research/iprc/nona/GrADS/plot-vector.html >  called vec.gs < Caution-http://vec.gs > .
By using this script, you can control the location of the arrow (vector) and the magnitude (number). 

Hope this helps,

Lyndon Mark P. Olaguera
PhD Student 
Laboratory of Climatology
Department of Geography
Faculty of Urban Environmental Science
Minami-Osawa Campus

Tokyo Metropolitan University
Hachioji Tokyo, Japan

On Fri, May 4, 2018 at 11:26 PM, Haines, Patrick A CIV USARMY RDECOM ARL (US) <patrick.a.haines6.civ at mail.mil < Caution-mailto:patrick.a.haines6.civ at mail.mil > > wrote:

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	Brian,

	        "draw string" seems promising but how do I specify that the character plotted is a vector (line and arrowhead)?

	Thank you,

	Patrick Haines

	-----Original Message-----
	From: gradsusr [Caution-mailto:gradsusr-bounces at gradsusr.org < Caution-mailto:gradsusr-bounces at gradsusr.org > ] On Behalf Of Brian Doty
	Sent: Wednesday, May 02, 2018 11:36 AM
	To: GrADS Users Forum <gradsusr at gradsusr.org < Caution-mailto:gradsusr at gradsusr.org > >
	Subject: [Non-DoD Source] Re: [gradsusr] How to plot a single vector or number ona GrADS plot background (UNCLASSIFIED)

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	Check to see if the "draw" commands suit your need, in particular the "draw string" command...

	> On May 1, 2018 at 10:17 AM "Haines, Patrick A CIV USARMY RDECOM ARL " <patrick.a.haines6.civ at mail.mil < Caution-mailto:patrick.a.haines6.civ at mail.mil > > wrote:
	> 
	> 
	> CLASSIFICATION: UNCLASSIFIED
	> 
	> I am generating various surface wind flow and other plots with GrADS. These are based on numerical simulation and they look pretty good. Now, I would like to plot a few isolated values or numbers on the previously mentioned GrADS plots. The values and/or numbers are not in station format. Is there a way in GrADS to do this? Previously, I have imported the GrADS plots into powerpoint and then placed the vectors or numbers.
	> 
	> Thank you,
	> 
	> Patrick Haines
	> 
	> 
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