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Create Dimension with fixed length #34

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23 changes: 22 additions & 1 deletion ScientificDataSet/Providers/NetCDF/NetCDFDataSet.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -806,7 +806,7 @@ private Variable CreateNetCdfVariable(string name, string[] dims, Type dataType)
Invoke(null, new object[] { this, name, dims });
return v;
}

internal object ReadNetCdfAttribute(int varid, string aname, AttributeTypeMap atm)
{
NcType type;
Expand Down Expand Up @@ -1149,6 +1149,27 @@ public void SetChunkSizes(int[] sizes)
internal int[] ChunkSizes { get { return chunkSizes; } }

#endregion

/// <summary>
/// Create a new Dimension of length N (N = 0 unlimited)
/// </summary>
public void CreateDimension(string dim, int len)
{
int res;
int id;
res = NetCDF.nc_inq_dimid(this.NcId, dim, out id);
if (res == (int)ResultCode.NC_EBADDIM)
{
StartChanges();
res = NetCDF.nc_def_dim(this.NcId, dim, new IntPtr(len), out id);
Commit();
HandleResult(res);
}
else
{
HandleResult(res);
}
}
}

internal class AttributeTypeMap
Expand Down
25 changes: 19 additions & 6 deletions ScientificDataSet/Providers/NetCDF/NetCdfVariable.cs
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Expand Up @@ -124,20 +124,26 @@ internal static NetCdfVariable<DataType> Create(NetCDFDataSet dataSet, string na

/* Getting exsting dims and creating new */
int[] dimids = new int[dims.Length];
int[] dimlen = new int[dims.Length];
for (int i = 0; i < dims.Length; i++)
{
int id;
res = NetCDF.nc_inq_dimid(dataSet.NcId, dims[i], out id);
if (res == (int)ResultCode.NC_NOERR)
{
IntPtr lenp;
res = NetCDF.nc_inq_dimlen(dataSet.NcId, id, out lenp);
NetCDFDataSet.HandleResult(res);
dimids[i] = id;
dimlen[i] = lenp.ToInt32();
}
else if (res == (int)ResultCode.NC_EBADDIM)
{
// Creating new dimension
res = NetCDF.nc_def_dim(dataSet.NcId, dims[i], new IntPtr(NcConst.NC_UNLIMITED), out id);
NetCDFDataSet.HandleResult(res);
dimids[i] = id;
dimlen[i] = NcConst.NC_UNLIMITED;
}
else
{
Expand Down Expand Up @@ -197,7 +203,14 @@ internal static NetCdfVariable<DataType> Create(NetCDFDataSet dataSet, string na

for (int i = 0; i < dims.Length; i++)
{
chunksizes[i] = new IntPtr(chunk);
if (dimlen[i] < chunk)
{
chunksizes[i] = new IntPtr(dimlen[i]);
}
else
{
chunksizes[i] = new IntPtr(chunk);
}
}
}

Expand Down Expand Up @@ -339,7 +352,7 @@ private int NcId
#region Transactions

/// <summary>
///
///
/// </summary>
/// <param name="proposedChanges"></param>
internal protected override void OnPrecommit(Variable.Changes proposedChanges)
Expand Down Expand Up @@ -381,7 +394,7 @@ internal protected override void OnPrecommit(Variable.Changes proposedChanges)
* Common netCDF model supports for only one such attribute,
* so all others CS except first are not compatible with that model.
* Their attribute names are "coordinates2","coordinates3" etc.
* Names of coordinate systems are provided with corresponed
* Names of coordinate systems are provided with corresponed
* attributes "coordinatesName","coordinates2Name",...
*/
if (proposedChanges.CoordinateSystems != null)
Expand Down Expand Up @@ -642,7 +655,7 @@ private static Array ToMultidimArrayDateTime(double[] ncArray, int[] shape)
#region Data Access

/// <summary>
///
///
/// </summary>
/// <returns></returns>
protected override int[] ReadShape()
Expand Down Expand Up @@ -698,7 +711,7 @@ private IntPtr[] ConvertToIntPtr(int[] array)
return result;
}
/// <summary>
///
///
/// </summary>
/// <param name="origin"></param>
/// <param name="shape"></param>
Expand Down Expand Up @@ -973,7 +986,7 @@ protected override Array ReadData(int[] origin, int[] stride, int[] shape)
}
}
/// <summary>
///
///
/// </summary>
/// <param name="origin"></param>
/// <param name="a"></param>
Expand Down