Java Code Examples for ucar.nc2.Variable#setDataType()
The following examples show how to use
ucar.nc2.Variable#setDataType() .
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Example 1
Source File: GtopoIosp.java From netcdf-java with BSD 3-Clause "New" or "Revised" License | 5 votes |
public void open(RandomAccessFile raf, NetcdfFile ncfile, CancelTask cancelTask) throws IOException { super.open(raf, ncfile, cancelTask); readHDR(); ncfile.addDimension(null, new Dimension("lat", nlats)); ncfile.addDimension(null, new Dimension("lon", nlons)); Variable elev = new Variable(ncfile, null, null, "elevation"); elev.setDataType(DataType.SHORT); elev.setDimensions("lat lon"); elev.addAttribute(new Attribute(CDM.UNITS, "m")); elev.addAttribute(new Attribute("units_desc", "meters above sea level")); elev.addAttribute(new Attribute(CDM.LONG_NAME, "digital elevation in meters above mean sea level")); elev.addAttribute(new Attribute(CDM.MISSING_VALUE, (short) -9999)); ncfile.addVariable(null, elev); Variable lat = new Variable(ncfile, null, null, "lat"); lat.setDataType(DataType.FLOAT); lat.setDimensions("lat"); lat.addAttribute(new Attribute(CDM.UNITS, CDM.LAT_UNITS)); ncfile.addVariable(null, lat); Array data = Array.makeArray(DataType.FLOAT, nlats, starty, -incr); lat.setCachedData(data, false); Variable lon = new Variable(ncfile, null, null, "lon"); lon.setDataType(DataType.FLOAT); lon.setDimensions("lon"); lon.addAttribute(new Attribute(CDM.UNITS, CDM.LON_UNITS)); ncfile.addVariable(null, lon); Array lonData = Array.makeArray(DataType.FLOAT, nlons, startx, incr); lon.setCachedData(lonData, false); ncfile.addAttribute(null, new Attribute(CDM.CONVENTIONS, "CF-1.0")); ncfile.addAttribute(null, new Attribute("History", "Direct read by Netcdf-Java CDM library")); ncfile.addAttribute(null, new Attribute("Source", "http://eros.usgs.gov/products/elevation/gtopo30.html")); ncfile.finish(); }
Example 2
Source File: CFGridWriter.java From netcdf-java with BSD 3-Clause "New" or "Revised" License | 4 votes |
private void addLatLon2D(NetcdfFile ncfile, List<Variable> varList, Projection proj, CoordinateAxis xaxis, CoordinateAxis yaxis) throws IOException { double[] xData = (double[]) xaxis.read().get1DJavaArray(double.class); double[] yData = (double[]) yaxis.read().get1DJavaArray(double.class); List<Dimension> dims = new ArrayList<Dimension>(); dims.add(yaxis.getDimension(0)); dims.add(xaxis.getDimension(0)); Variable latVar = new Variable(ncfile, null, null, "lat"); latVar.setDataType(DataType.DOUBLE); latVar.setDimensions(dims); latVar.addAttribute(new Attribute(CDM.UNITS, CDM.LAT_UNITS)); latVar.addAttribute(new Attribute(CDM.LONG_NAME, "latitude coordinate")); latVar.addAttribute(new Attribute(CF.STANDARD_NAME, "latitude")); latVar.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Lat.toString())); Variable lonVar = new Variable(ncfile, null, null, "lon"); lonVar.setDataType(DataType.DOUBLE); lonVar.setDimensions(dims); lonVar.addAttribute(new Attribute(CDM.UNITS, CDM.LON_UNITS)); lonVar.addAttribute(new Attribute(CDM.LONG_NAME, "longitude coordinate")); lonVar.addAttribute(new Attribute(CF.STANDARD_NAME, "longitude")); lonVar.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Lon.toString())); int nx = xData.length; int ny = yData.length; // create the data ProjectionPointImpl projPoint = new ProjectionPointImpl(); LatLonPointImpl latlonPoint = new LatLonPointImpl(); double[] latData = new double[nx * ny]; double[] lonData = new double[nx * ny]; for (int i = 0; i < ny; i++) { for (int j = 0; j < nx; j++) { projPoint.setLocation(xData[j], yData[i]); proj.projToLatLon(projPoint, latlonPoint); latData[i * nx + j] = latlonPoint.getLatitude(); lonData[i * nx + j] = latlonPoint.getLongitude(); } } Array latDataArray = Array.factory(DataType.DOUBLE, new int[] {ny, nx}, latData); latVar.setCachedData(latDataArray, false); Array lonDataArray = Array.factory(DataType.DOUBLE, new int[] {ny, nx}, lonData); lonVar.setCachedData(lonDataArray, false); varList.add(latVar); varList.add(lonVar); }
Example 3
Source File: H4type.java From netcdf-java with BSD 3-Clause "New" or "Revised" License | 4 votes |
public static DataType setDataType(short type, Variable v) { DataType dt; switch (type) { case 3: case 21: dt = DataType.UBYTE; break; case 4: dt = DataType.CHAR; break; case 5: dt = DataType.FLOAT; break; case 6: dt = DataType.DOUBLE; break; case 20: dt = DataType.BYTE; break; case 22: dt = DataType.SHORT; break; case 23: dt = DataType.USHORT; break; case 24: dt = DataType.INT; break; case 25: dt = DataType.UINT; break; case 26: dt = DataType.LONG; break; case 27: dt = DataType.ULONG; break; default: throw new IllegalStateException("unknown type= " + type); } if (v != null) { v.setDataType(dt); } return dt; }