private void showValueDiffs(CoordinateAxis axis) {
if (!axis.isNumeric()) return;
try {
if (axis instanceof CoordinateAxis1D) {
CoordinateAxis1D axis1D = (CoordinateAxis1D) axis;
double[] mids = axis1D.getCoordValues();
double[] diffs = new double[mids.length];
for (int i = 0; i < mids.length - 1; i++) diffs[i] = mids[i + 1] - mids[i];
printArrays("midpoint differences", mids, diffs);
} else if (axis instanceof CoordinateAxis2D) {
CoordinateAxis2D axis2D = (CoordinateAxis2D) axis;
ArrayDouble.D2 mids = axis2D.getCoordValuesArray();
int[] shape = mids.getShape();
ArrayDouble.D2 diffx =
(ArrayDouble.D2) Array.factory(DataType.DOUBLE, new int[] {shape[0], shape[1] - 1});
for (int j = 0; j < shape[0]; j++) {
for (int i = 0; i < shape[1] - 1; i++) {
double diff = mids.get(j, i + 1) - mids.get(j, i);
diffx.set(j, i, diff);
}
}
infoTA.appendLine(NCdumpW.toString(diffx, "diff in x", null));
ArrayDouble.D2 diffy =
(ArrayDouble.D2) Array.factory(DataType.DOUBLE, new int[] {shape[0] - 1, shape[1]});
for (int j = 0; j < shape[0] - 1; j++) {
for (int i = 0; i < shape[1]; i++) {
double diff = mids.get(j + 1, i) - mids.get(j, i);
diffy.set(j, i, diff);
}
}
infoTA.appendLine("\n\n\n");
infoTA.appendLine(NCdumpW.toString(diffy, "diff in y", null));
}
} catch (Exception e1) {
e1.printStackTrace();
infoTA.appendLine(e1.getMessage());
}
}
public void testWriteStandardVar() throws Exception {
NetcdfFileWriteable ncfile = new NetcdfFileWriteable(filename, false);
// define dimensions
Dimension latDim = ncfile.addDimension("lat", 2);
Dimension lonDim = ncfile.addDimension("lon", 3);
ArrayList dims = new ArrayList();
dims.add(latDim);
dims.add(lonDim);
// case 1
ncfile.addVariable("t1", DataType.DOUBLE, dims);
ncfile.addVariableAttribute("t1", CDM.SCALE_FACTOR, new Double(2.0));
ncfile.addVariableAttribute("t1", "add_offset", new Double(77.0));
// case 2
ncfile.addVariable("t2", DataType.BYTE, dims);
ncfile.addVariableAttribute("t2", CDM.SCALE_FACTOR, new Short((short) 2));
ncfile.addVariableAttribute("t2", "add_offset", new Short((short) 77));
// case 3
ncfile.addVariable("t3", DataType.BYTE, dims);
ncfile.addVariableAttribute("t3", "_FillValue", new Byte((byte) 255));
// case 4
ncfile.addVariable("t4", DataType.SHORT, dims);
ncfile.addVariableAttribute("t4", CDM.MISSING_VALUE, new Short((short) -9999));
// case 5
ncfile.addVariable("t5", DataType.SHORT, dims);
ncfile.addVariableAttribute("t5", CDM.MISSING_VALUE, new Short((short) -9999));
ncfile.addVariableAttribute("t5", CDM.SCALE_FACTOR, new Short((short) 2));
ncfile.addVariableAttribute("t5", "add_offset", new Short((short) 77));
// case 1
ncfile.addVariable("m1", DataType.DOUBLE, dims);
ncfile.addVariableAttribute("m1", CDM.MISSING_VALUE, -999.99);
// create the file
ncfile.create();
// write t1
ArrayDouble A = new ArrayDouble.D2(latDim.getLength(), lonDim.getLength());
int i, j;
Index ima = A.getIndex();
// write
for (i = 0; i < latDim.getLength(); i++)
for (j = 0; j < lonDim.getLength(); j++) A.setDouble(ima.set(i, j), (double) (i * 10.0 + j));
int[] origin = new int[2];
ncfile.write("t1", origin, A);
// write t2
ArrayByte Ab = new ArrayByte.D2(latDim.getLength(), lonDim.getLength());
ima = Ab.getIndex();
for (i = 0; i < latDim.getLength(); i++)
for (j = 0; j < lonDim.getLength(); j++) Ab.setByte(ima.set(i, j), (byte) (i * 10 + j));
ncfile.write("t2", origin, Ab);
// write t3
ncfile.write("t3", origin, Ab);
// write t4
Array As = new ArrayShort.D2(latDim.getLength(), lonDim.getLength());
ima = As.getIndex();
for (i = 0; i < latDim.getLength(); i++)
for (j = 0; j < lonDim.getLength(); j++) As.setShort(ima.set(i, j), (short) (i * 10 + j));
ncfile.write("t4", origin, As);
As.setShort(ima.set(0, 0), (short) -9999);
ncfile.write("t5", origin, As);
// write m1
ArrayDouble.D2 Ad = new ArrayDouble.D2(latDim.getLength(), lonDim.getLength());
for (i = 0; i < latDim.getLength(); i++)
for (j = 0; j < lonDim.getLength(); j++) Ad.setDouble(ima.set(i, j), (double) (i * 10.0 + j));
Ad.set(1, 1, -999.99);
ncfile.write("m1", new int[2], Ad);
// all done
ncfile.close();
System.out.println("**************TestStandardVar Write done");
}