Package com.drew.lang

Examples of com.drew.lang.Rational

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    }

    @Test
    public void testExtract_ShutterSpeed() throws Exception
    {
        assertEquals(new Rational(6965784, 1000000), _directory.getRational(XmpDirectory.TAG_SHUTTER_SPEED));
    }
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    @Test
    public void testThumbnailXResolution() throws Exception
    {
        ExifThumbnailDirectory directory = ExifReaderTest.processBytes("Tests/Data/manuallyAddedThumbnail.jpg.app1", ExifThumbnailDirectory.class);

        Rational rational = directory.getRational(ExifThumbnailDirectory.TAG_X_RESOLUTION);
        assertNotNull(rational);
        assertEquals(72, rational.getNumerator());
        assertEquals(1, rational.getDenominator());
    }
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    @Test
    public void testThumbnailYResolution() throws Exception
    {
        ExifThumbnailDirectory directory = ExifReaderTest.processBytes("Tests/Data/manuallyAddedThumbnail.jpg.app1", ExifThumbnailDirectory.class);

        Rational rational = directory.getRational(ExifThumbnailDirectory.TAG_Y_RESOLUTION);
        assertNotNull(rational);
        assertEquals(72, rational.getNumerator());
        assertEquals(1, rational.getDenominator());
    }
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        assertEquals(2, _exifIFD0Directory.getInt(ExifIFD0Directory.TAG_RESOLUTION_UNIT));
        assertEquals("E995v1.6", _exifIFD0Directory.getString(ExifIFD0Directory.TAG_SOFTWARE));
        assertEquals("2002:08:29 17:31:40", _exifIFD0Directory.getString(ExifIFD0Directory.TAG_DATETIME));
        assertEquals(1, _exifIFD0Directory.getInt(ExifIFD0Directory.TAG_YCBCR_POSITIONING));
       
        assertEquals(new Rational(2439024, 100000000), _exifSubIFDDirectory.getRational(ExifSubIFDDirectory.TAG_EXPOSURE_TIME));
        assertEquals(2.6, _exifSubIFDDirectory.getDouble(ExifSubIFDDirectory.TAG_FNUMBER), 0.001);
        assertEquals(2, _exifSubIFDDirectory.getInt(ExifSubIFDDirectory.TAG_EXPOSURE_PROGRAM));
        assertEquals(100, _exifSubIFDDirectory.getInt(ExifSubIFDDirectory.TAG_ISO_EQUIVALENT));
        assertEquals("48 50 49 48", _exifSubIFDDirectory.getString(ExifSubIFDDirectory.TAG_EXIF_VERSION));
        assertEquals("2002:08:29 17:31:40", _exifSubIFDDirectory.getString(ExifSubIFDDirectory.TAG_DATETIME_DIGITIZED));
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        assertEquals(2, _exifIFD0Directory.getInt(ExifIFD0Directory.TAG_RESOLUTION_UNIT));
        assertEquals("v981-79", _exifIFD0Directory.getString(ExifIFD0Directory.TAG_SOFTWARE));
        assertEquals("2001:04:06 11:51:40", _exifIFD0Directory.getString(ExifIFD0Directory.TAG_DATETIME));
        assertEquals(2, _exifIFD0Directory.getInt(ExifIFD0Directory.TAG_YCBCR_POSITIONING));

        assertEquals(new Rational(1, 77), _exifSubIFDDirectory.getRational(ExifSubIFDDirectory.TAG_EXPOSURE_TIME));
        assertEquals(5.5, _exifSubIFDDirectory.getDouble(ExifSubIFDDirectory.TAG_FNUMBER), 0.001);
        assertEquals(2, _exifSubIFDDirectory.getInt(ExifSubIFDDirectory.TAG_EXPOSURE_PROGRAM));
        assertEquals(80, _exifSubIFDDirectory.getInt(ExifSubIFDDirectory.TAG_ISO_EQUIVALENT));
        assertEquals("48 50 49 48", _exifSubIFDDirectory.getString(ExifSubIFDDirectory.TAG_EXIF_VERSION));
        assertEquals("2001:04:06 11:51:40", _exifSubIFDDirectory.getString(ExifSubIFDDirectory.TAG_DATETIME_DIGITIZED));
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{
    @Test
    public void testXResolutionDescription() throws Exception
    {
        ExifIFD0Directory directory = new ExifIFD0Directory();
        directory.setRational(ExifIFD0Directory.TAG_X_RESOLUTION, new Rational(72, 1));
        // 2 is for 'Inch'
        directory.setInt(ExifIFD0Directory.TAG_RESOLUTION_UNIT, 2);
        ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
        assertEquals("72 dots per inch", descriptor.getDescription(ExifIFD0Directory.TAG_X_RESOLUTION));
    }
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    @Test
    public void testYResolutionDescription() throws Exception
    {
        ExifIFD0Directory directory = new ExifIFD0Directory();
        directory.setRational(ExifIFD0Directory.TAG_Y_RESOLUTION, new Rational(50, 1));
        // 3 is for 'cm'
        directory.setInt(ExifIFD0Directory.TAG_RESOLUTION_UNIT, 3);
        ExifIFD0Descriptor descriptor = new ExifIFD0Descriptor(directory);
        assertEquals("50 dots per cm", descriptor.getDescription(ExifIFD0Directory.TAG_Y_RESOLUTION));
    }
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        Assert.assertEquals(Integer.valueOf(value), _directory.getInteger(tagType));
        Assert.assertEquals((float)value, _directory.getFloat(tagType), 0.00001);
        Assert.assertEquals((double)value, _directory.getDouble(tagType), 0.00001);
        Assert.assertEquals((long)value, _directory.getLong(tagType));
        Assert.assertEquals(Integer.toString(value), _directory.getString(tagType));
        Assert.assertEquals(new Rational(value, 1), _directory.getRational(tagType));
        Assert.assertArrayEquals(new int[] { value }, _directory.getIntArray(tagType));
        Assert.assertArrayEquals(new byte[] { (byte)value }, _directory.getByteArray(tagType));
    }
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    @Test
    public void testThumbnailXResolution() throws Exception
    {
        Directory directory = readDirectoryFromJpegFile("Tests/com/drew/metadata/exif/manuallyAddedThumbnail.jpg", ExifThumbnailDirectory.class);

        Rational rational = directory.getRational(ExifThumbnailDirectory.TAG_X_RESOLUTION);
        Assert.assertNotNull(rational);
        Assert.assertEquals(72, rational.getNumerator());
        Assert.assertEquals(1, rational.getDenominator());
    }
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    @Test
    public void testThumbnailYResolution() throws Exception
    {
        Directory directory = readDirectoryFromJpegFile("Tests/com/drew/metadata/exif/manuallyAddedThumbnail.jpg", ExifThumbnailDirectory.class);

        Rational rational = directory.getRational(ExifThumbnailDirectory.TAG_Y_RESOLUTION);
        Assert.assertNotNull(rational);
        Assert.assertEquals(72, rational.getNumerator());
        Assert.assertEquals(1, rational.getDenominator());
    }
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Related Classes of com.drew.lang.Rational

  • com.drew.imaging.tiff.TiffReader
  • com.drew.lang.test.RationalTest
  • com.drew.metadata.Directory
  • com.drew.metadata.DirectoryTest
  • com.drew.metadata.exif.ExifDescriptor
  • com.drew.metadata.exif.ExifIFD0Descriptor
  • com.drew.metadata.exif.ExifIFD0DescriptorTest
  • com.drew.metadata.exif.ExifReader
  • com.drew.metadata.exif.ExifReaderTest
  • com.drew.metadata.exif.ExifSubIFDDescriptor
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