controling colour station data according to defined range.

[Stephen R McMillan]

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
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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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