Re: limits of netCDF library

• To: "netcdfgroup@xxxxxxxxxxxxxxxx" <netcdfgroup@xxxxxxxxxxxxxxxx>
• Subject: Re: limits of netCDF library
• From: "blincoln" <blincoln@xxxxxxxxxx>
• Date: Mon, 29 Apr 1996 17:46:11 -0800

On Mon, 29 Apr 1996 16:56:09 PDT, Peter Halvorson wrote:
[multiple unlimited dimensions desires outlined]
>Am I missing something?  Is there some way to do what I want with the

        Nope.  In order to support changing grid sizes, changing number of 
cells, 
changing number of particles.  We've had to write a netCDF wrapper library that 
creates a new file every time theres a change in the number of points (which 
can be 
every frame, in some instances).  It would be nice to have this functionality 
built into 
netCDF even if it is clear that there would be a significant performance 
penalty.
        Our hope has been that eventually, some support for changing dimensions 
lengths will be added... but... 

        Our crude implementation looks like:

-------------------------
StartNextFrame()
{       CreateNewFile = FALSE;
        for ( i = 0; i < NumDims ; i++)
                if (Dimlengths[FrameNumber][i] != Dimelengths[FrameNumber-1][i])
                        CreateNewFile = TRUE;
        if (CreateNewFile == TRUE)
                netCDFFileIDs[FrameNumber] = CreateNewNetCDFFile();
        else
                netCDFFileIDs[FrameNumber] = netCDFFileIDs[FrameNumber - 1];
}

GetNetCDFFileID(long FrameNumber) { return netCDFFileIDs[FrameNumber];}

-----------

        But, obviously, this requires quite a bit of work designing and 
implementing a 
wrapper.  Contact me if you'd like more information about our implementation.

Peace,

blincoln@xxxxxxxxxx

• Follow-Ups:
  • Re: limits of netCDF library
    • From: Neil Lincoln