A Java solution:
* When you get the actual data, it will be stored in a subclass of
ucar.ma2.Array.
* The Array class offers lots of methods to rearrange the data
(reduce(), reshape(), permute(), ...). Those may be sufficient to do all
that you need.
* If that isn't sufficient, sometimes it is appropriate to
* Use Array.flip to reverse the order of one dimension
(when the new Array is accessed via an index).
* Use Array.getIndex() to get a ucar.ma2.Index from the flipped Array.
* Make another Array (a3) to hold the results.
* Use the index to get data from the flipped Array,
then write it to the new array (a3).
Good luck.
Daniele Romagnoli wrote:
Hi list,
first of all, sorry for cross-posting.
I have some NetCDF data containing 4D variables having dimensions
ordered as Time, Lat, Lon, Level.
I would like to "simply" re-arrange data to become having dimensions
ordered as Time, Level, Lat, Lon, as recommended (although not required)
by CF-Convention.
Is there an easy way to achieve this? (I'm using net-cdf java 2.2 APIs)
Basically I have a "test.nc <http://test.nc>" file with
attributes/variables/dimensions/more... and I would like to get a
"modified.nc <http://modified.nc>" file where the "only difference" is
having variables with differently ordered dimensions (and data array
respecting the new order).
Any suggestion or guidance line would be greatly appreciated.
Best Regards,
Daniele
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Eng. Daniele Romagnoli
Software Engineer
GeoSolutions S.A.S.
Via Carignoni 51
55041 Camaiore (LU)
Italy
phone: +39 0584983027
fax: +39 0584983027
mob: +39 328 0559267
http://www.geo-solutions.it
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Sincerely,
Bob Simons
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Environmental Research Division
NOAA Southwest Fisheries Science Center
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