/*
* Copyright 1998-2015 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
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package ucar.nc2.grib;
import org.junit.Assert;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import ucar.ma2.Array;
import ucar.ma2.DataType;
import ucar.ma2.InvalidRangeException;
import ucar.nc2.NCdumpW;
import ucar.nc2.Variable;
import ucar.nc2.dataset.NetcdfDataset;
import ucar.nc2.util.Misc;
import ucar.unidata.util.test.category.NeedsCdmUnitTest;
import ucar.unidata.util.test.TestDir;
import java.io.IOException;
/**
* Describe
*
* @author caron
* @since 4/9/2015
*/
@Category(NeedsCdmUnitTest.class)
public class TestGribCollectionReading {
@Test
public void testReadTimeRange() throws IOException, InvalidRangeException {
// read more than one time coordinate at a time in a TP (multiple runtimes, single offset) partition
try (NetcdfDataset ds = NetcdfDataset.openDataset(TestDir.cdmUnitTestDir + "gribCollections/tp/GFSonedega.ncx3")) {
Variable v = ds.findVariable(null, "Pressure_surface");
assert v != null;
Array data = v.read("0:1,50,50");
assert data != null;
assert data.getRank() == 3;
assert data.getDataType() == DataType.FLOAT;
assert data.getSize() == 2;
float[] got = (float []) data.copyTo1DJavaArray();
float[] expect = new float[] {103031.914f, 103064.164f};
Assert.assertArrayEquals(expect, got, (float) Misc.maxReletiveError);
}
}
@Test
public void testReadTimeRangeWithSingleVerticalLevel() throws IOException, InvalidRangeException {
// read more than one time coordinate at a time in a TP (multiple runtimes, single offset) partition
try (NetcdfDataset ds = NetcdfDataset.openDataset(TestDir.cdmUnitTestDir + "gribCollections/tp/GFSonedega.ncx3")) {
Variable v = ds.findVariable(null, "Relative_humidity_sigma");
assert v != null;
Array data = v.read("0:1, 0, 50, 50");
assert data != null;
assert data.getRank() == 4;
assert data.getDataType() == DataType.FLOAT;
assert data.getSize() == 2;
System.out.printf("%s%n", NCdumpW.toString(data));
while (data.hasNext()) {
float val = data.nextFloat();
assert !Float.isNaN(val);
}
float[] got = (float []) data.copyTo1DJavaArray();
float[] expect = new float[] {68.0f, 74.0f};
Assert.assertArrayEquals(expect, got, (float) Misc.maxReletiveError);
}
}
@Test
public void testReadTimeRangeWithMultipleVerticalLevel() throws IOException, InvalidRangeException {
// read more than one time coordinate at a time in a TP (multiple runtimes, single offset) partition
try (NetcdfDataset ds = NetcdfDataset.openDataset(TestDir.cdmUnitTestDir + "gribCollections/tp/GFSonedega.ncx3")) {
Variable v = ds.findVariable(null, "Relative_humidity_isobaric");
assert v != null;
Array data = v.read("0:1, 10:20:2, 50, 50");
assert data != null;
assert data.getRank() == 4;
assert data.getDataType() == DataType.FLOAT;
assert data.getSize() == 12;
System.out.printf("%s%n", NCdumpW.toString(data));
while (data.hasNext()) {
float val = data.nextFloat();
assert !Float.isNaN(val);
}
float[] got = (float []) data.copyTo1DJavaArray();
float[] expect = new float[] {57.8f, 53.1f, 91.3f, 85.5f, 80.0f, 69.3f, 32.8f, 41.8f, 88.9f, 81.3f, 70.9f, 70.6f};
Assert.assertArrayEquals(expect, got, (float) Misc.maxReletiveError);
}
}
}