Package com.drew.lang

Examples of com.drew.lang.Rational

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    }

    public String getExposureBiasDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_EXPOSURE_BIAS)) return null;
        Rational exposureBias = _directory.getRational(ExifDirectory.TAG_EXPOSURE_BIAS);
        return exposureBias.toSimpleString(true) + " EV";
    }
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    }

    public String getFocalPlaneXResolutionDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_FOCAL_PLANE_X_RES)) return null;
        Rational rational = _directory.getRational(ExifDirectory.TAG_FOCAL_PLANE_X_RES);
        return rational.getReciprocal().toSimpleString(_allowDecimalRepresentationOfRationals) + " " +
                getFocalPlaneResolutionUnitDescription().toLowerCase();
    }
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    }

    public String getFocalPlaneYResolutionDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_FOCAL_PLANE_Y_RES)) return null;
        Rational rational = _directory.getRational(ExifDirectory.TAG_FOCAL_PLANE_Y_RES);
        return rational.getReciprocal().toSimpleString(_allowDecimalRepresentationOfRationals) + " " +
                getFocalPlaneResolutionUnitDescription().toLowerCase();
    }
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    public String getFocalLengthDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_FOCAL_LENGTH)) return null;
        java.text.DecimalFormat formatter = new DecimalFormat("0.0##");
        Rational focalLength = _directory.getRational(ExifDirectory.TAG_FOCAL_LENGTH);
        return formatter.format(focalLength.doubleValue()) + " mm";
    }
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    }

    public String getSubjectDistanceDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_SUBJECT_DISTANCE)) return null;
        Rational distance = _directory.getRational(ExifDirectory.TAG_SUBJECT_DISTANCE);
        java.text.DecimalFormat formatter = new DecimalFormat("0.0##");
        return formatter.format(distance.doubleValue()) + " metres";
    }
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    }

    public String getCompressionLevelDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_COMPRESSION_LEVEL)) return null;
        Rational compressionRatio = _directory.getRational(ExifDirectory.TAG_COMPRESSION_LEVEL);
        String ratio = compressionRatio.toSimpleString(_allowDecimalRepresentationOfRationals);
        if (compressionRatio.isInteger() && compressionRatio.intValue() == 1) {
            return ratio + " bit/pixel";
        } else {
            return ratio + " bits/pixel";
        }
    }
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    }

    public String getYResolutionDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_Y_RESOLUTION)) return null;
        Rational resolution = _directory.getRational(ExifDirectory.TAG_Y_RESOLUTION);
        return resolution.toSimpleString(_allowDecimalRepresentationOfRationals) +
                " dots per " +
                getResolutionDescription().toLowerCase();
    }
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    }

    public String getXResolutionDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_X_RESOLUTION)) return null;
        Rational resolution = _directory.getRational(ExifDirectory.TAG_X_RESOLUTION);
        return resolution.toSimpleString(_allowDecimalRepresentationOfRationals) +
                " dots per " +
                getResolutionDescription().toLowerCase();
    }
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    }

    public String getFNumberDescription() throws MetadataException
    {
        if (!_directory.containsTag(ExifDirectory.TAG_FNUMBER)) return null;
        Rational fNumber = _directory.getRational(ExifDirectory.TAG_FNUMBER);
        return "F" + SimpleDecimalFormatter.format(fNumber.doubleValue());
    }
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                directory.setString(tagType, readString(tagValueOffset, componentCount));
                break;
            case FMT_SRATIONAL:
            case FMT_URATIONAL:
                if (componentCount==1) {
                    Rational rational = new Rational(get32Bits(tagValueOffset), get32Bits(tagValueOffset + 4));
                    directory.setRational(tagType, rational);
                } else {
                    Rational[] rationals = new Rational[componentCount];
                    for (int i = 0; i<componentCount; i++)
                        rationals[i] = new Rational(get32Bits(tagValueOffset + (8 * i)), get32Bits(tagValueOffset + 4 + (8 * i)));
                    directory.setRationalArray(tagType, rationals);
                }
                break;
            case FMT_SBYTE:
            case FMT_BYTE:
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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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