public virtual 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);
return(value == null || Sharpen.Extensions.Trim(value).Length == 0 ? null : Sharpen.Extensions.Trim(value) + " degrees");
}
protected internal virtual string GetDecimalRational(int tagType, int decimalPlaces)
{
Rational value = _directory.GetRational(tagType);
if (value == null)
{
return null;
}
return Sharpen.Extensions.StringFormat("%." + decimalPlaces + "f", value.DoubleValue());
}
public virtual string GetFNumberDescription()
{
Rational value = _directory.GetRational(XmpDirectory.TagFNumber);
if (value == null)
{
return(null);
}
return("F" + SimpleDecimalFormatter.Format(value.DoubleValue()));
}
public virtual string GetFocalLengthDescription()
{
Rational value = _directory.GetRational(XmpDirectory.TagFocalLength);
if (value == null)
{
return(null);
}
DecimalFormat formatter = new DecimalFormat("0.0##");
return(formatter.Format(value.DoubleValue()) + " mm");
}
public virtual string GetSubjectDistanceDescription()
{
Rational value = _directory.GetRational(ExifSubIFDDirectory.TagSubjectDistance);
if (value == null)
{
return(null);
}
DecimalFormat formatter = new DecimalFormat("0.0##");
return(formatter.Format(value.DoubleValue()) + " metres");
}
public virtual string GetDigitalZoomRatioDescription()
{
Rational value = _directory.GetRational(ExifSubIFDDirectory.TagDigitalZoomRatio);
return(value == null ? null : value.GetNumerator() == 0 ? "Digital zoom not used." : SimpleDecimalFormatter.Format(value.DoubleValue()));
}
