controling colour station data according to defined range.

[Jennifer Faber]

----- Original Message -----
From: "Eric Altshuler" <ela at COLA.IGES.ORG>
To: <GRADSUSR at LIST.CINECA.IT>
Sent: Tuesday, July 28, 2009 8:26 PM
Subject: Re: controling colour station data according to defined range.


> Hi Jennifer,
>
> In one of your previous messages, you sent a plot that shows colored
> temperature values. From what you've said, it seems that plot is a perfect
> example of what you want to do. How was that image created?
>
> Best regards,
>
> Eric L. Altshuler
> Assistant Research Scientist
> Center for Ocean-Land-Atmosphere Studies
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705-3106
> USA
>
> E-mail: ela at cola.iges.org
> Phone: (301) 902-1257
> Fax: (301) 595-9793
>
> ----- Original Message -----
> From: "Jennifer Faber" <j.faber at WEERONLINE.NL>
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Tuesday, July 28, 2009 3:21:08 AM GMT -05:00 US/Canada Eastern
> Subject: Re: controling colour station data according to defined range.
>
>
> Hi Stephan (and other GrADS users)
>
> It seems like a good option when you are talking about 10 or 20 stations.
> But I want to produce maps that make use of hundreds of stations. Finding
> all coordinates and creating this function will be very time-consuming! I
> am starting to get the idea that it isnt possible in GrADS to color
> values, which suprises me because so much is possible with GrADS! Maybe a
> good idea to insert the option in a new version?! ;-)
>
> Greetings,
> Jennifer
>
>
>
>
> ----- Original Message -----
> From: Stephen R McMillan
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Monday, July 27, 2009 5:53 AM
> Subject: Re: controling colour station data according to defined range.
>
> Jennifer,
> Have you considered using 'set strsiz...', 'set string...', and 'draw
> string...' to draw your values? You could create a function that draws the
> plotted parameters in value-dependent colors, using station x-y
> coordinates and wx parameter values as arguments. It may be more
> time-consuming but should do the trick. Perhaps someone else out there
> knows a more efficient way in GrADS,
>
> Note: I am on "vacation" so I may not respond to any follow-up
> questions/comments in a timely manner. Sorry--no sample script at this
> time.
>
> Good luck!
> Stephen McMillan
>
>
>        Jennifer Faber <j.faber at WEERONLINE.NL>
> Sent by: GRADSUSR at LIST.CINECA.IT
>
> 07/24/2009 02:16 AM
>
> Please respond to
> GRADSUSR at LIST.CINECA.IT
>
>
> To      GRADSUSR at LIST.CINECA.IT
>
> cc
>
> Subject         Re: controling colour station data according to defined
> range.
>
>
>
>
> Hi Jennifer (and rest)
>
> Thanks you for your fast reply! I never knew about this option. But
> unfortunately I dont wanna plot the parameters as dots that represents the
> station location. I want to plot parameters like temperature, rainfall,
> wind direction and speed measured by the station as values (not as dots)
> and control the colours of these parameters. If I "set gxout value" then I
> can plot the values but I cannot color the colors according to their
> value. Any new suggestions?? (I dont know if it is allowed, but I added a
> file as an example what I mean)
>
> Greetings,
> Jennifer Faber
> ----- Original Message -----
> From: Jennifer Adams
> To: GRADSUSR at LIST.CINECA.IT
> Sent: Thursday, July 23, 2009 5:24 PM
> Subject: Re: controling colour station data according to defined range.
>
> Use 'set gxout stnmark' and you'll get a colorized dot where the station
> location is. Then 'set clevs' and 'set ccols' and 'set digsiz' will allow
> you to control the colors and levels and size of the dots.
> --Jennifer
>
> On Jul 23, 2009, at 11:01 AM, Jennifer Faber wrote:
>
>
> Dear all,
>
> Problem: I am trying to plot MOS data in GrADS. This data is station data
> and we already created a numerical model and STNmap utility to read and
> draw into a grid. What I want to do is colour the parameters according to
> their values. In essence the same as what you can do for the contours
> (shaded or not) but now for gridvalues or stationdata.
>
> With Tmax as example we managed: to plot the Tmax of all stations (of MOS
> file) with gxout shaded using oacreas. Here we can manipulate the colours
> and the range.
>
> Now: We want to plot the value Tmax as value (not contour) and then colour
> the value according to a range. I cannot use clevs or ccols because that
> is only for contours. And I cannot use fgvals neither because then it will
> colour the entire grid and not the grid value. All I can do with the value
> is change digit, change size and colour them, BUT all in the SAME colours.
>
> I didnt include a script, because no script I tried, solved this problem.
> I hope you can help me. Thanks!
>
> Sincerely,
>
> MSc. Jennifer Faber
> Meteorologist Weeronline
>
> WeerOnline B.V.
> Waterstraat 11
> 6882 GA Velp
> Tel.: 026-3622111
> Fax: 026-3621699
> http://www.weeronline.nl
> http://pda.weeronline.nl
> mailto: j.faber at weeronline.nl
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org [attachment "example TMAX coloured.gif" deleted by
> Stephen R. McMillan/Planalytics]
>
>
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