Package com.drew.lang

Examples of com.drew.lang.Rational

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    }

    @Nullable
    public String getExposureBiasDescription()
    {
        Rational value = _directory.getRational(ExifSubIFDDirectory.TAG_EXPOSURE_BIAS);
        if (value==null)
            return null;
        return value.toSimpleString(true) + " EV";
    }
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    }

    @Nullable
    public String getFocalPlaneXResolutionDescription()
    {
        Rational rational = _directory.getRational(ExifSubIFDDirectory.TAG_FOCAL_PLANE_X_RES);
        if (rational==null)
            return null;
        final String unit = getFocalPlaneResolutionUnitDescription();
        return rational.getReciprocal().toSimpleString(_allowDecimalRepresentationOfRationals)
            + (unit==null ? "" : " " + unit.toLowerCase());
    }
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    }

    @Nullable
    public String getFocalPlaneYResolutionDescription()
    {
        Rational rational = _directory.getRational(ExifSubIFDDirectory.TAG_FOCAL_PLANE_Y_RES);
        if (rational==null)
            return null;
        final String unit = getFocalPlaneResolutionUnitDescription();
        return rational.getReciprocal().toSimpleString(_allowDecimalRepresentationOfRationals)
            + (unit==null ? "" : " " + unit.toLowerCase());
    }
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    }

    @Nullable
    public String getFocalLengthDescription()
    {
        Rational value = _directory.getRational(ExifSubIFDDirectory.TAG_FOCAL_LENGTH);
        if (value==null)
            return null;
        java.text.DecimalFormat formatter = new DecimalFormat("0.0##");
        return formatter.format(value.doubleValue()) + " mm";
    }
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    }

    @Nullable
    public String getSubjectDistanceDescription()
    {
        Rational value = _directory.getRational(ExifSubIFDDirectory.TAG_SUBJECT_DISTANCE);
        if (value==null)
            return null;
        java.text.DecimalFormat formatter = new DecimalFormat("0.0##");
        return formatter.format(value.doubleValue()) + " metres";
    }
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    }

    @Nullable
    public String getCompressedAverageBitsPerPixelDescription()
    {
        Rational value = _directory.getRational(ExifSubIFDDirectory.TAG_COMPRESSED_AVERAGE_BITS_PER_PIXEL);
        if (value==null)
            return null;
        String ratio = value.toSimpleString(_allowDecimalRepresentationOfRationals);
        if (value.isInteger() && value.intValue() == 1) {
            return ratio + " bit/pixel";
        } else {
            return ratio + " bits/pixel";
        }
    }
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    }

    @Nullable
    public String getFNumberDescription()
    {
        Rational value = _directory.getRational(ExifSubIFDDirectory.TAG_FNUMBER);
        if (value==null)
            return null;
        return "F" + SimpleDecimalFormatter.format(value.doubleValue());
    }
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    }

    @Nullable
    public String getGpsDirectionDescription(int tagType)
    {
        Rational angle = _directory.getRational(tagType);
        // provide a decimal version of rational numbers in the description, to avoid strings like "35334/199 degrees"
        String value = angle != null
                ? new DecimalFormat("0.##").format(angle.doubleValue())
                : _directory.getString(tagType);
        if (value==null || value.trim().length()==0)
            return null;
        return value.trim() + " degrees";
    }
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    }

    @Nullable
    public String getGpsAltitudeDescription()
    {
        final Rational value = _directory.getRational(GpsDirectory.TAG_GPS_ALTITUDE);
        if (value==null)
            return null;
        return value.intValue() + " metres";
    }
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    }

    @Nullable
    public String getYResolutionDescription()
    {
        Rational value = _directory.getRational(ExifThumbnailDirectory.TAG_Y_RESOLUTION);
        if (value==null)
            return null;
        final String unit = getResolutionDescription();
        return value.toSimpleString(_allowDecimalRepresentationOfRationals) +
                " dots per " +
                (unit==null ? "unit" : unit.toLowerCase());
    }
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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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