NetCDF library for .NET

NEW POST: Using it in C#

dmedv — Thu, 23 Aug 2007 10:31:39 GMT

Osei wrote:
I have downloaded the netcdf assembly and added as a reference to my project. I now want to create a similar CreateNETCDF app in C# just like the J# one.
Any help on that one?

Osei

Sorry. Been away for a while...
Using this library in C# is a bit tricky. You still need some of vjslib.dll, so you'll have to reference it in your project as well. The code will look like this:

NetcdfFileWriteable ncfile = new NetcdfFileWriteable();
ncfile.setName("C:\\testncfile.nc");
Dimension latDim = ncfile.addDimension("lat", 3);
Dimension lonDim = ncfile.addDimension("lon", 4);
Dimension timeDim = ncfile.addDimension("time", -1);
Dimension[] dim3 = new Dimension[3];
dim3[0] = timeDim;
dim3[1] = latDim;
dim3[2] = lonDim;
ncfile.addVariable("rh", java.lang.Integer.TYPE, dim3);
ncfile.addVariableAttribute("rh", "long_name", "relative humidity");
ncfile.addVariableAttribute("rh", "units", "percent");
ncfile.addVariable("T", java.lang.Double.TYPE, dim3);
ncfile.addVariableAttribute("T", "long_name", "surface temperature");
ncfile.addVariableAttribute("T", "units", "degC");
ncfile.addVariable("lat", java.lang.Float.TYPE, new Dimension[] { latDim });
ncfile.addVariableAttribute("lat", "units", "degrees_north");
ncfile.addVariable("lon", java.lang.Float.TYPE, new Dimension[] { lonDim });
ncfile.addVariableAttribute("lon", "units", "degrees_east");
ncfile.addVariable("time", java.lang.Integer.TYPE, new Dimension[] { timeDim });
ncfile.addVariableAttribute("time", "units", "hours");
ncfile.addGlobalAttribute("title", "Example Data");
ncfile.create();

Console.WriteLine("ncfile = " + ncfile);
int[, ,] rhData = {{{ 1, 2, 3, 4}, { 5, 6, 7, 8}, { 9, 10, 11, 12}},
{{21, 22, 23, 24}, {25, 26, 27, 28}, {29, 30, 31, 32}}};
ArrayInt rhA = new ArrayInt.D3(2, latDim.getLength(), lonDim.getLength());
int i, j, k;
Index ima = rhA.getIndex();
for (i = 0; i < 2; i++)
for (j = 0; j < latDim.getLength(); j++)
for (k = 0; k < lonDim.getLength(); k++)
rhA.setInt(ima.set(i, j, k), rhData[i, j, k]);
ncfile.write("rh", rhA);

double[, ,] tData = {{{ 1, 2, 3, 4}, {2, 4, 6, 8}, { 3, 6, 9, 12}},
{{2.5, 5, 7.5, 10}, {5, 10, 15, 20}, {7.5, 15, 22.5, 30}}};
ArrayDouble tA = new ArrayDouble.D3(2, latDim.getLength(), lonDim.getLength());
ima = tA.getIndex();
for (i = 0; i < 2; i++)
for (j = 0; j < latDim.getLength(); j++)
for (k = 0; k < lonDim.getLength(); k++)
tA.setDouble(ima.set(i, j, k), tData[i, j, k]);

ncfile.write("T", tA);
ncfile.write("lat", ArrayAbstract.factory(new float[] { 41, 40, 39 }));
ncfile.write("lon", ArrayAbstract.factory(new float[] { -109, -107, -105, -103 }));
ncfile.write("time", ArrayAbstract.factory(new int[] { 6, 18 }));
ncfile.close();

RELEASED: 1.0 (Aug 23, 2007)

Thu, 23 Aug 2007 08:43:44 GMT

Some minor changes in Array classes.
DataType class added.

UPDATED RELEASE: 1.0 (авг 23, 2007)

Thu, 23 Aug 2007 08:43:44 GMT

Some minor changes in Array classes.
DataType class added.

NEW POST: Using it in C#

Osei — Fri, 20 Jul 2007 14:42:26 GMT

I have downloaded the netcdf assembly and added as a reference to my project. I now want to create a similar CreateNETCDF app in C# just like the J# one.
Any help on that one?

Osei

UPDATED WIKI: Home

dmedv — Mon, 21 May 2007 09:41:05 GMT

Project Description
NetCDF (network Common Data Form) is a software library and a standard binary data format supported by Unidata (http://www.unidata.ucar.edu/software/netcdf/) that enables the creation, access, and network sharing of array-oriented scientific data. This project is dedicated to porting the Java version of NetCDF library to .NET platform. This effort is a part of the joint research project ESSE (Environmental Scenario Search Engine - http://esse.wdcb.ru) run by Geophysical Centre Rus. Acad. Sci., National Geophysical Data Center NOAA, and Microsoft Research, Cambridge.

The current version is based on netCDF for Java 2.0. It supports netCDF-3 datasets (just like netCDF-Java 2.0 library). It does not support netCDF-4 yet.

UPDATED RELEASE: 0.2 Alpha (апр 04, 2007)

Mon, 07 May 2007 07:24:23 GMT

Contains the latest source code and binary builds. See "readme.txt" inside each package for details.

Source code checked in

dmedv — Thu, 19 Apr 2007 12:16:23 GMT

UPDATED RELEASE: 0.1 Alpha

Thu, 05 Apr 2007 13:52:28 GMT

Based on NetCDF for Java v2.0. Includes NCdump and CreateNetcdf for testing purposes.

Source code checked in

dmedv — Thu, 05 Apr 2007 13:35:21 GMT

First check-in based on NetCDF for Java v2.0. Contains NCdump and CreateNetcdf for testing the library.

Source code checked in

dmedv — Thu, 05 Apr 2007 12:52:12 GMT

UPDATED WIKI: Home

dmedv — Thu, 05 Apr 2007 09:28:29 GMT

Project Description
NetCDF (network Common Data Form) is a software library and a standard binary data format supported by Unidata (http://www.unidata.ucar.edu/software/netcdf/) that enables the creation, access, and network sharing of array-oriented scientific data. This project is dedicated to porting the Java version of NetCDF library to .NET platform. This effort is a part of the joint research project ESSE (Environmental Scenario Search Engine - http://esse.wdcb.ru]) run by Geophysical Centre Rus. Acad. Sci., National Geophysical Data Center NOAA, and Microsoft Research, Cambridge.

Source code checked in

dmedv — Thu, 05 Apr 2007 09:00:49 GMT

CREATED RELEASE: 0.2 Alpha

Wed, 04 Apr 2007 07:00:00 GMT

Contains the latest source code and binary builds. See "readme.txt" inside each package for details.