Re: [netcdf-java] Write files with 64-bit long data types

• To: netcdf-java@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdf-java] Write files with 64-bit long data types
• From: Hanns Holger Rutz <rutz@xxxxxx>
• Date: Fri, 30 Jun 2017 17:55:28 +0200

p.s. I use

    "edu.ucar" % "netcdf4" % "4.6.10"

as library. perhaps I need to change this or use a different one?


On 30/06/17 17:51, Hanns Holger Rutz wrote:
> hi,
> 
> so far I have used this
> 
>     nc2.NetcdfFileWriter.createNew(Version.netcdf3, location, null)
> 
> this creates files with this type of header:
> 
> 00000000  43 44 46 01 00 00 00 00  00 00 00 0a 00 00 00 04
> |CDF.............|
> 00000010  00 00 00 04 54 69 6d 65  00 00 00 b4 00 00 00 09
> |....Time........|
> 00000020  4c 6f 6e 67 69 74 75 64  65 00 00 00 00 00 00 0c
> |Longitude.......|
> 00000030  00 00 00 08 4c 61 74 69  74 75 64 65 00 00 00 24
> |....Latitude...$|
> 00000040
> 
> now I have a problem where I have to include 64-bit long values, and
> this seems to be unsupported: "long not support in netcdf-3"
> 
> So I tried chaing  this to
> 
>     nc2.NetcdfFileWriter.createNew(Version.netcdf4, location, null)
> 
> now this gives me error that it wants to use C (???) libraries:
> 
>     Nc4Iosp: NetCDF-4 C library not present (jna_path='/usr/local/lib/',
> libname='netcdf').
> 
> What should I do? I need a solution that is cross-platform with
> libraries pulled from a maven repository, no matter whether user runs
> Linux, Windows, Mac.
> 
> Can I get a pure Java solution that supports 64-bit long? How?
> 
> thanks, .h.h.
> 
> 
> 
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  • [netcdf-java] Write files with 64-bit long data types
    • From: Hanns Holger Rutz