- At variable create time, user can specify that the data be packed.
- Scale and offset are set after variable creation time.
- One scale and offset will apply to each variable which uses
scale/offset.
- A convenience function is provided which, given the shape and the
data, can calculate a scale/offset for the data.
- Data packing can be used on both netCDF-3 dataset and netCDF-4
datasets.
- The user specifies the type of the packed and unpacked data. The
packed data may be stored as byte, short, and int for classic model
files; additionally ubyte, ushort, and uint may be used for netCDF-4
files.
- If the data cannot be packed into the target type using the
provided scale and offset, the writing function will return an error.
- When packing is used in a netCDF classic or 64-bit offset file,
any necessary attributes are created at variable create time, even
without good values. This prevents the entire file from being
rewritten when the values of those attributes are specified.
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Merger of udunits
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- The netCDF distribution contains the udunits package.
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Error Handling
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- NetCDF error info is added to HDF5 error stack.
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HDF5 File and Filter Support
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- The netCDF-4 interface supports HDF5 compression filters.
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