Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
As long as your netcdf file defines the variable as float, you can skip steps 1 and 2 and call nc_put_vara_double() and netcdf will do the conversion internally. On Mon, Nov 29, 2010 at 7:29 AM, Jennifer Adams <jma@xxxxxxxxxxxxx> wrote: > Dear Experts, > > It says in the documentation, "...if you write a program that deals with > all numeric data as double-precision floating point values, you can read > netCDF data into double-precision arrays without knowing or caring what the > external type of the netCDF variables are." This is very handy, and I wonder > if there is any way to use this kind of easy type conversion when writing > out data. > > When my program that deals with all numeric data as double-precision needs > to write out floating point values, I use this algorithm: > 1. allocate a new array of floats equal in size to the array of doubles > 2. loop over elements in the arrays and explicitly cast the data values > from double to float > 3. call nc_put_vara_float() to write the floats to the output file > > Is there a way to do this that would not require the memory allocation in > step 1? > > --Jennifer > > -- > Jennifer M. Adams > IGES/COLA > 4041 Powder Mill Road, Suite 302 > Calverton, MD 20705 > jma@xxxxxxxxxxxxx > > > > > _______________________________________________ > netcdfgroup mailing list > netcdfgroup@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ >
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