Re: How to use stScalarFieldData?

Sorry Christian, I forgot to give you a new version of the internal
"spread_colors.ncl" routine.
I've attached it. Be sure to load it after you load "gsn_code.ncl" in
your script.

--Mary

On Mar 8, 2010, at 4:34 AM, Christian Pause wrote:

> Hi Mary,
>
> yes, this is exactly what I'm looking for, thank you!
>
> I'm getting one error though that says:
> spread_colors: invalid plot: defaulting
>
> This appears both in my script and the test scripts you sent me.
>
> Christian
>
>
>> Hi Christian,
>>
>> This is a case where we don't have any examples that use this special
>> resource.
>>
>> As Rick pointed out, you can go a little deeper than the gsn_xxx
>> codes to get this
>> to work.
>>
>> It made me realize that we have the gsn_xxx_vector_scalar_xxxx
>> functions, but
>> no corresponding gsn_xxx_streamline_scalar_xxx functions.
>>
>> I don't have time right now to do the full gsn_csm_xxxx version of
>> these routines,
>> but I was able to quickly create gsn_streamline_scalar
>> and
>> gsn_streamline_scalar_map,
>> if you want to give these a try. Internally, they use
>> stScalarFieldData and set
>> stUseScalarArray to True, causing the streamlines to be colored by
>> the given
>> scalar field.
>>
>> I'm attaching the code (streamline_scalar.ncl), two test scripts
>> (stream_test1.ncl and
>> stream_test2.ncl), and a sample data file (uvtest.nc).
>>
>> Let me know if this is not what you want.
>>
>> --Mary
>
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