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[netCDF #JUF-873258]: Just a single example, please, would surely be quite helpful

The key is that you have to define a structure type in fortran
that corresponds to the compound type in the file.
By doing a web search for "defining a struct type in fortran"
I found some examples of doing that.

> 
> I have been unable to read compound user defined type variables with
> NF90_GET_VAR
> 
> (no problems to read simple type variables - the difficulty is with
> compound user types only)
> 
> I have a file with netcdf-4 format. That file has the root group and
> this has two groups.
> 
> One of these groups, named LEVEL-3_BINNED_DATA, has 4 variables (or
> datasets). Each variable has dimension 1 and size 4320.
> 
> One of these variables is named BinList and has 5 fields of different
> types, as listed below:
> 
> Variables in the group level-3_binned_data
> 
> Output from nf90_inquire_variable for variable with name:
> BinList
> ---------------------------------------------------------
> Type:
> 17
> Number of dimensions: 1
> Vector of IDs of every dimension:
> 1
> -----
> 
> Variable name: BinList
> Type ID: 17
> Type name: binListType
> Type size:
> 16
> Type base ID: 0
> Type fields: 5
> Type class:
> 16
> -------------------
> 
> Variable BinList, field number 1:
> field_name:
> bin_num
> field_offset: 0
> field_typeID: 9
> field_ndims: 0
> 
> field_dimsizes: 0
> Variable BinList, field number 2:
> field_name: nobs
> 
> field_offset: 4
> field_typeID: 3
> field_ndims: 0
> field_dimsizes:
> 0
> Variable BinList, field number 3:
> field_name: nscenes
> field_offset:
> 6
> field_typeID: 3
> field_ndims: 0
> field_dimsizes: 0
> Variable BinList,
> field number 4:
> field_name: weights
> field_offset: 8
> field_typeID: 5
> 
> field_ndims: 0
> field_dimsizes: 0
> Variable BinList, field number 5:
> 
> field_name: time_rec
> field_offset: 12
> field_typeID: 5
> field_ndims: 0
> 
> field_dimsizes: 0
> variable BinList has no attributes [mVarAttsNum( 1, 1,
> 1) = 0]
> 
> I would appreciate if you could help me how shouid I read the data,
> for example, from field number 4, please.
> 
> The Fortran Interface User Guide does NOT provide a single example
> on using NF90_GET_VAR to read values from compound user defined type
> variables.
> 
> If you could send me just a single example, that would surely be enough
> to desintegrate right away this road bloc on my work...
> 
> I thank you for the kindness of your attention and help.
> 
> Kind regards
> 
> Arlindo Arriaga,
> PhD Meteorology UW-Madison 1991.
> 
> 
> 

=Dennis Heimbigner
  Unidata


Ticket Details
===================
Ticket ID: JUF-873258
Department: Support netCDF
Priority: Critical
Status: Open
===================
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