[ncl-talk] gsn_add_polygon function

[Guilherme Martins]

Hi Alan,

I'll take a look in your sugestion. Thanks.

The informations about my file using the ncdump

netcdf fluxos.ERAI {
dimensions:
lon = 1 ;
lat = 1 ;
time = UNLIMITED ; // (12 currently)
variables:
double lon(lon) ;
lon:standard_name = "longitude" ;
lon:long_name = "longitude" ;
lon:units = "degrees_east" ;
lon:axis = "X" ;
double lat(lat) ;
lat:standard_name = "latitude" ;
lat:long_name = "latitude" ;
lat:units = "degrees_north" ;
lat:axis = "Y" ;
double time(time) ;
time:standard_name = "time" ;
time:units = "days since 1979-01-01 12:00:00" ;
time:calendar = "standard" ;
float fnorte(time, lat, lon) ;
fnorte:code = 3 ;
float fsul(time, lat, lon) ;
fsul:code = 5 ;
float fleste(time, lat, lon) ;
fleste:code = 2 ;
float foeste(time, lat, lon) ;
foeste:code = 4 ;
float fbalanco(time, lat, lon) ;
fbalanco:code = 1 ;

// global attributes:
:CDI = "Climate Data Interface version 1.6.5 (
http://code.zmaw.de/projects/cdi)" ;
:Conventions = "CF-1.4" ;
:history = "Sun Mar 01 01:16:49 2015: cdo -O -s merge norte.nc sul.nc
leste.nc oeste.nc balanco.nc fluxos.ERAI.nc\n",
"Sun Mar 01 01:16:44 2015: cdo -O -s -r -ymonmean -monmean
-setcalendar,standard -settaxis,1979-01-01,12:00:00,1day -setcode,1
-chname,var1,fbalanco balanco.tmp.nc balanco.nc\n",
"Sun Mar 01 01:16:44 2015: cdo -O -s -f nc input,r1x1 balanco.tmp.nc" ;
:CDO = "Climate Data Operators version 1.6.5 (
http://code.zmaw.de/projects/cdo)" ;
}

Guilherme.

*Guilherme Martins*
https://sites.google.com/site/jgmsantos


2015-03-01 15:25 GMT-03:00 Alan Brammer <abrammer at albany.edu>:

> Hard to know without the file information.
> It looks like your plotting the data on ax axis of  1-12.  The x points of
> your polygon therefore need to be with respect to this 1-12 axis.  Whereas
> you're defining them based on the time coordinate of your data which I
> presume is not 1-12 currently.
>
> Either scale the x coordinates of the polygon to match the 1-12 axis or
> change the plot to be with respect to y1&time.
>
> Throw a print(xp)  between line 81 and the end and if the values are not
> between 1-12 then the polygon is being plotted but somewhere else not
> within the plot bounds.
>
> Hopefully that makes sense.
>
>
> ~Alan.
>
>
> On Sun, Mar 1, 2015 at 12:08 PM, Guilherme Martins <jgmsantos at gmail.com>
> wrote:
>
>> Hi NCL users!
>>
>> I'm trying to insert shaded area in my dataset observed using the
>> gsn_add_polygon function, but I'm not getting. I don't get errors and the
>> shaded area don't appear.
>>
>> My files are in attached.
>>
>> I'm using ncl 6.2.1.
>>
>> Any help is very appreciated.
>>
>> *Guilherme Martins*
>> https://sites.google.com/site/jgmsantos
>>
>>
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>
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