@Test
public void testFloatingPointCompare() throws Exception {
String spec =
TestDir.cdmUnitTestDir + "ft/fmrc/fp_precision/sediment_thickness_#yyMMddHHmm#.*\\.nc$";
System.out.printf("%n====================FMRC dataset %s%n", spec);
Formatter errlog = new Formatter();
Fmrc fmrc = Fmrc.open(spec, errlog);
assert (fmrc != null) : errlog;
try (ucar.nc2.dt.GridDataset gridDs = fmrc.getDatasetBest()) {
GridDatatype v = gridDs.findGridByShortName("thickness_of_sediment");
assert v != null;
GridCoordSystem gcs = v.getCoordinateSystem();
CoordinateAxis1DTime time = gcs.getTimeAxis1D();
Assert.assertEquals("hours since 2015-03-08 12:51:00.000 UTC", time.getUnitsString());
Assert.assertEquals(74, time.getSize());
Array data = time.read();
System.out.printf("%s%n", NCdumpW.toString(data));
for (CalendarDate cd : time.getCalendarDates()) {
assert cd.getFieldValue(CalendarPeriod.Field.Minute) == 0 : System.out.printf("%s%n", cd);
}
}
}
public void testStride(String stride) throws IOException, InvalidRangeException {
Variable time = ncfile.findVariable("time");
ArrayInt all = (ArrayInt) time.read();
ArrayInt correct = (ArrayInt) all.section(new Section(stride).getRanges());
System.out.printf("correct(%s) %s", stride, NCdumpW.toString(correct));
ArrayInt data = (ArrayInt) time.read(stride);
System.out.printf("data(%s) %s%n", stride, NCdumpW.toString(data));
Index ci = correct.getIndex();
Index di = data.getIndex();
for (int i = 0; i < data.getSize(); i++)
assert (data.getInt(di.set(i)) == correct.getInt(ci.set(i)))
: stride
+ " index "
+ i
+ " = "
+ data.getInt(di.set(i))
+ " != "
+ correct.getInt(ci.set(i));
}
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 String getValue() {
Array value = att.getValues();
return NCdumpW.toString(value, null, null);
}