/// <summary>
/// Add attribute
/// </summary>
/// <param name="attName">attribute name</param>
/// <param name="attValue">attribute value</param>
public void AddAttribute(string attName, string attValue)
{
AttStruct aAtt = new AttStruct();
aAtt.NCType = NetCDF4.NcType.NC_CHAR;
aAtt.attName = attName;
aAtt.attValue = attValue;
aAtt.attLen = attValue.Length;
_attributes.Add(aAtt);
_attNumber = _attributes.Count;
}
/// <summary>
/// Add attribute
/// </summary>
/// <param name="attName">attribute name</param>
/// <param name="attValue">attribute value</param>
public void AddAttribute(string attName, double attValue)
{
AttStruct aAtt = new AttStruct();
aAtt.NCType = NetCDF4.NcType.NC_DOUBLE;
aAtt.attName = attName;
aAtt.attValue = attValue;
aAtt.attLen = 1;
_attributes.Add(aAtt);
_attNumber = _attributes.Count;
}
/// <summary>
/// Add time dimension
/// </summary>
/// <param name="inFile">input nc file</param>
/// <param name="outFile">output nc file</param>
/// <param name="aTime">time</param>
/// <param name="timeUnit">time unit (days, minutes, seconds)</param>
public static void AddTimeDimension(string inFile, string outFile, DateTime aTime, string timeUnit)
{
//Set data info
NetCDFDataInfo aDataInfo = new NetCDFDataInfo();
aDataInfo.ReadDataInfo(inFile);
NetCDFDataInfo bDataInfo = (NetCDFDataInfo)aDataInfo.Clone();
//Check variables if time included
List <string> varList = new List <string>();
int j;
for (j = 0; j < aDataInfo.Variables.Count; j++)
{
varList.Add(aDataInfo.Variables[j].Name.ToLower());
}
if (varList.Contains("time"))
{
return;
}
//set start time of the data
DateTime sTime = new DateTime();
double tValue = 0;
switch (timeUnit.ToLower())
{
case "minutes":
sTime = aTime.AddYears(-1);
tValue = (aTime - sTime).TotalMinutes;
break;
case "seconds":
sTime = aTime.AddYears(-1);
tValue = (aTime - sTime).TotalSeconds;
break;
default:
sTime = DateTime.Parse("1800-1-1 00:00:00");
tValue = (aTime - sTime).TotalDays;
break;
}
//Set data info, Add time dimension and variable
Dimension tDim = new Dimension();
tDim.DimName = "time";
tDim.DimLength = 1;
tDim.DimId = bDataInfo.ndims;
bDataInfo.AddDimension(tDim);
Variable tVar = new Variable();
List <AttStruct> attList = new List <AttStruct>();
AttStruct aAtts = new AttStruct();
aAtts.attName = "units";
aAtts.NCType = NetCDF4.NcType.NC_CHAR;
aAtts.attValue = timeUnit.ToLower() + " since " + sTime.ToString("yyyy-M-d HH:mm:ss");
aAtts.attLen = ((string)aAtts.attValue).Length;
attList.Add(aAtts);
aAtts = new AttStruct();
aAtts.attName = "long_name";
aAtts.NCType = NetCDF4.NcType.NC_CHAR;
aAtts.attValue = "Time";
aAtts.attLen = ((string)aAtts.attValue).Length;
attList.Add(aAtts);
//aAtts = new AttStruct();
//aAtts.attName = "delta_t";
//aAtts.ncType = NetCDF4.NcType.NC_CHAR;
//aAtts.attValue = "0000-00-01 00:00:00";
//aAtts.attLen = ((string)aAtts.attValue).Length;
//attList.Add(aAtts);
tVar.Attributes = attList;
tVar.Dimensions.Add(tDim);
tVar.AttNumber = attList.Count;
tVar.NCType = NetCDF4.NcType.NC_DOUBLE;
//tVar.nDims = 1;
tVar.VarId = bDataInfo.nvars;
tVar.Name = "time";
//tVar.isDataVar = false;
bDataInfo.AddVariable(tVar);
for (j = 0; j < bDataInfo.Variables.Count; j++)
{
Variable aVarS = bDataInfo.Variables[j];
if (aVarS.DimNumber > 1)
{
aVarS.Dimensions.Insert(0, tDim);
//for (int d = 0; d < aVarS.DimNumber; d++)
// aVarS.Dimensions.Add(aVarS.Dimensions[d]);
//aVarS.nDims += 1;
bDataInfo.Variables[j] = aVarS;
}
}
//Get and set data array
object[] dataArray = new object[0];
int cLen = 0;
for (j = 0; j < aDataInfo.nvars; j++)
{
object[] varData = new object[1];
if (aDataInfo.GetVarData(aDataInfo.Variables[j], ref varData))
{
Array.Resize(ref dataArray, cLen + varData.Length);
Array.Copy(varData, 0, dataArray, cLen, varData.Length);
cLen = dataArray.Length;
}
}
Array.Resize(ref dataArray, cLen + 1);
dataArray[cLen] = tValue;
//Write NetCDF data file
bDataInfo.WriteNetCDFData(outFile, dataArray);
}