Package org.timepedia.chronoscope.client.util

Examples of org.timepedia.chronoscope.client.util.JavaArray2D

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      }

      numSamples /= 2;
    }

    return new JavaArray2D(multiDomain);
  }
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      multiRange[level] = currRange;
      prevRange = currRange;
      numSamples /= 2;
    }

    return new JavaArray2D(multiRange);
  }
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  }

  public void testGetRow() {
    double[][] data = new double[][] { {10, 20, 30, 40}, {100, 200}, {300}};
    JavaArray2D a = new JavaArray2D(data);
   
    for (int r = 0; r < data.length; r++) {
      Array1D row = a.getRow(r);
      assertEquals(data[r].length, row.size());
      for (int i = 0; i < row.size(); i++) {
        assertEquals(data[r][i], row.get(i));
      }
    }
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  }

  public void testSet() {
    double[][] data = new double[][] { {10, 20}, {30}};

    JavaArray2D a = new JavaArray2D(copy(data));
    for (int i = 0; i < data.length; i++) {
      double[] row = data[i];
      for (int j = 0; j < row.length; j++) {
        double newValue = row[j] + 1.0;
        a.set(i, j, newValue);
        assertEquals(newValue, a.get(i, j));
      }
    }

    // dimensions should not have changed
    assertSameSize(data, a);
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  }

  public void testGetIllegalIndex() {
    double[][] data = new double[][] { {10, 20}, {30, 40}};

    JavaArray2D a2d = new JavaArray2D(data);
    a2d.set(4, 4, 999); // force capacity growth

    try {
      // This should fail, since '5' is greater than the largest index specified
      a2d.get(4, 5);
      fail("Expected AssertionError");
    } catch (AssertionError e) {}
  }
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  public void testSet_forceGrow() {
    // Original data has 2 rows: row 0 has 2 columns, row 1 has 1 column.
    double[][] data = new double[][] { {10, 20}, {30}};

    JavaArray2D a2d = new JavaArray2D(data);

    // set a cell that's bigger than the original size of the backing array
    final int newRowIdx = 5;
    final int newColIdx = 5;
    a2d.set(newRowIdx, newColIdx, 100.0);
    assertEquals(100.0, a2d.get(newRowIdx, newColIdx));
   
    // Original data should still be intact...
    assertEquals(10.0, a2d.get(0, 0));
    assertEquals(20.0, a2d.get(0, 1));
    assertEquals(30.0, a2d.get(1, 0));
    assertEquals(10.0, a2d.get(0, 0));
   
    // Verify new dimensions
    assertEquals(newRowIdx + 1, a2d.numRows());
    assertEquals(newColIdx + 1, a2d.numColumns(newRowIdx));
  }
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* @author Chad Takahashi
*/
public class JavaArray2DTest extends TestCase {
 
  public void testDefaultConstructor() {
    assertEquals(0, new JavaArray2D().numRows());
   
    assertTrue(new JavaArray2D().isSameSize(new JavaArray2D()));
   
    try {
      new JavaArray2D().getRow(0);
      fail("Expected AssertionError");
    } catch (AssertionError e) {}
   
    JavaArray2D a = new JavaArray2D();
    a.set(0, 0, 100);
    a.set(2, 2, 300);
    assertEquals(100.0, a.get(0, 0));
    assertEquals(0, a.numColumns(1)); // row 1 has not been assigned anything
    assertEquals(300.0, a.get(2, 2));
   
    // Columns 0 and 1 not exlicitly assigned in this row; expects default value of 0.
    assertEquals(0.0, a.get(2, 0));
    assertEquals(0.0, a.get(2, 1));
  }
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    // make a copy of 'row' to use as expected array to guard against
    // case where JavaArray2D accidentally modifies the input array.
    double[] expectedRow = Util.copyArray(row);
   
    JavaArray2D a = new JavaArray2D(row);
    assertEquals(1, a.numRows());
    assertEquals(3, a.numColumns(0));
    for (int i = 0; i < expectedRow.length; i++) {
      assertEquals(expectedRow[i], a.get(0, i));
    }
  }
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      assertEquals(expectedRow[i], a.get(0, i));
    }
  }
 
  public void testAddRow() {
    JavaArray2D a = new JavaArray2D();
   
    double[] row0 = new double[] {1, 2};
    double[] row1 = new double[] {3, 4};
   
    a.addRowByRef(row0);
    a.addRowByValue(row1);
   
    assertEquals(1.0, a.get(0, 0));
    assertEquals(2.0, a.get(0, 1));
    assertEquals(3.0, a.get(1, 0));
    assertEquals(4.0, a.get(1, 1));
   
    // Row0 was added by reference.  Verify that JavaArray2D actually points to row0
    row0[0] = 999.0;
    assertEquals(999.0, a.get(0, 0));
   
    // row1 was added by value.  Verify that JavaArray2D is not affected by changes
    // to row1's state.
    row1[0] = 999.0;
    assertEquals(3.0, a.get(1, 0));
   
    // Verify that access to the array elemts via the Array1D interface
    // works as expected
    for (int i = 0; i < a.numRows(); i++) {
      for (int j = 0; j < a.numColumns(i); j++) {
        assertEquals(a.get(i, j), a.getRow(i).get(j));
      }
    }
  }
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    }
  }
 
  public void testDimensions() {
    double[][] data = new double[][] { {10, 20}, {30}};
    JavaArray2D a = new JavaArray2D(data);
    assertSameSize(data, a);
  }
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Related Classes of org.timepedia.chronoscope.client.util.JavaArray2D

  • org.timepedia.chronoscope.client.data.BinaryMipMapStrategy
  • org.timepedia.chronoscope.client.io.DatasetReader
  • org.timepedia.chronoscope.client.util.JavaArray2DTest
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