/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
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* understands that UCAR/Unidata is not obligated to provide the user with
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*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
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*/
package ucar.nc2.dods;
import java.io.IOException;
import org.junit.experimental.categories.Category;
import ucar.ma2.Array;
import ucar.ma2.ArrayDouble;
import ucar.ma2.DataType;
import ucar.ma2.IndexIterator;
import ucar.nc2.Variable;
import ucar.unidata.util.test.category.NeedsExternalResource;
import static org.junit.Assert.assertEquals;
/** Test nc2 dods in the JUnit framework. */
@Category(NeedsExternalResource.class)
public class TestDODSGrids {
@org.junit.Test
public void testGrid() throws IOException {
DODSNetcdfFile dodsfile = TestDODSRead.open("test.06");
Variable v = null;
assert(null != (v = dodsfile.findVariable("OneD")));
checkVariable(v);
assert(null != (v = dodsfile.findVariable("x")));
checkVariable(v);
assert(null != (v = dodsfile.findVariable("y")));
checkVariable(v);
assert(null != (v = dodsfile.findVariable("FourD")));
assert v instanceof DODSGrid;
checkVariable2(v);
}
void checkVariable( Variable v) throws IOException {
assert v.getRank() == 1;
assert v.getSize() == 10;
assert v.getDataType() == DataType.DOUBLE;
Array a = v.read();
checkArray( a);
}
void checkArray( Array a) throws IOException {
assert a.getElementType() == double.class;
assert a instanceof ArrayDouble.D1;
double[] tFloat64 = new double[] {1.0, 0.9999500004166653, 0.9998000066665778,
0.9995500337489875, 0.9992001066609779, 0.9987502603949663, 0.9982005399352042,
0.9975510002532796, 0.9968017063026194, 0.9959527330119943};
IndexIterator iter = a.getIndexIterator();
int count = 0;
while (iter.hasNext()) {
assertEquals(iter.getDoubleNext(), tFloat64[count], 1.0e-9);
count++;
}
}
void checkVariable2( Variable v) throws IOException {
assert v.getRank() == 4;
assert v.getSize() == 10000;
assert v.getDataType() == DataType.DOUBLE;
Array a = v.read();
assert a.getElementType() == double.class;
assert a instanceof ArrayDouble.D4;
ArrayDouble.D4 a4 = (ArrayDouble.D4) a;
assertEquals( a4.get(0,0,0,0), 1.0 ,1.0e-9);
assertEquals( a4.get(0,1,3,0), 0.26749882862458735 ,1.0e-9);
assertEquals( a4.get(1,1,1,1), 0.1141761752318889 ,1.0e-9);
assertEquals( a4.get(9, 6, 4, 2), -0.5658172324454206 ,1.0e-9);
}
}