[ncl-talk] Animate_1.ncl doubt

[Mary Haley]

Sebastián,

Regarding your questions:

   - I also tried the animate_2.ncl script, but I have some doubts, what
   exactly are the coordinates that are ploted?

It looks like this example was never finished!  It just generates a contour
plot, and not a contour plot over a map. The coordinates you're seeing are
just index values into the the data. The 2D field is 369 x 369, so you are
seeing index values from 0 to 368 on both axes.

I've updated this script and the images/movie to draw these contours over a
map, so please check it out again.


   - If i want to plot a vectormap, the documentation says that u,v
   velocities must be 2D, but my variables have the following dimensions (
   Time, Lat,Lon), there is any command to set this or I need to do this
   manually?


You should be able to use "gsn_csm_vector_map" close to the same way that
"gsn_csm_contour_map" is being used, except instead of one 2D arrays, you
have two 2D arrays.  You will need to subscript on time, just as the
"animate_2.ncl" does (which subscripts across levels).  Go to the "vectors"
examples page for some help on this:

http://www.ncl.ucar.edu/Applications/vector.shtml


   - Finally, the animate_2.ncl plot temperatures at one time(I guess) for
   each pressure level, how can I get variables related to the pressure levels.

I'm not sure what you mean by this question, "related to the pressure
levels".

--Mary


On Tue, Mar 3, 2015 at 11:09 PM, Sebastian Otarola-Bustos <
Sebastian.F.Otarola-Bustos.1 at nd.edu> wrote:

> Hi Mary,
>
> Thank you very much for your help and sorry for the delay in my answer, I
> was out of the city and I just return. I used a "ps" file and it works
> fine. I also tried the animate_2.ncl script, but I have some doubts, what
> exactly are the coordinates that are ploted?, because I was used to plot
> the results showing Lat/Lon coordinates with the map projection. How can I
> use Lat/Lon insted of those?  I also see that animate_2.ncl uses gsn_cme
> resources, If i want to plot a vectormap, the documentation says that u,v
> velocities must be 2D, but my variables have the following dimensions (
> Time, Lat,Lon), there is any command to set this or I need to do this
> manually?. Finally, the animate_2.ncl plot temperatures at one time(I
> guess) for each pressure level, how can I get variables related to the
> pressure levels.
>
> Thank you very much in advance,
> Any help would be great.
> Best regards,
> Sebastián.
>
>
> On Fri, Feb 13, 2015 at 2:21 PM, Mary Haley <haley at ucar.edu> wrote:
>
>> Sebastián,
>>
>> First, make sure you are typing "idt" and not "Idt". The "idt" command is
>> included with the NCL software, so you should have access to it.  If you
>> type:
>>
>> which ncl
>> which idt
>>
>> it should report finding both of these commands in the same directory.
>>
>> My suggestion is to perhaps *not* use NCGM as your output format, but
>> instead use "eps" or "ps" and then use one of many tools available for
>> converting a PS file to an animated GIF or MPEG, depending on what you
>> want. Here's how you would use the "convert" tool, which is part of the
>> free ImageMagick package to convert a series of EPS files to an animated
>> GIF:
>>
>>    convert -delay 50 *.eps anim.gif
>>
>>
>> The second example "animate_2.ncl" shows how to do this. You should also
>> read our FAQ on this topic:
>>
>> http://www.ncl.ucar.edu/FAQ/#o_formats_008
>>
>> Hopefully some NCL Talkers out there will have other ( maybe better)
>> suggestions for creating animations.  There are lots of ways to do this,
>> and it just depends on what format and quality you need.
>>
>> --Mary
>>
>>
>> On Wed, Feb 11, 2015 at 4:44 PM, Sebastian Otarola-Bustos <
>> sotarola at nd.edu> wrote:
>>
>>> Hello, I am new at WRF and I'm trying to postprocess some results. I've
>>> been trying to run the example script animate_1.ncl which I found in the
>>> NCL_page. But It threw me some errors. Particularly, when I use Idt, it
>>> doesn't recognize the command. You know what can I do to solve this.
>>> Another thing I am wondering to know, can you tell me if the files are well
>>> loaded, because It doesn't threw me any error, I' ve loaded directly a
>>> wrfout.nc file.I attached you the script so it would be great if you
>>> can help me with this. Finally, I would like to share the video, how can I
>>> export ncgm to multimedia stantar format.
>>>
>>> Best regards,
>>> Sebastián.
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20150304/56ea2174/attachment.html