GPS height information reading

[yw19841107]

I am using JAVA version 2.18.0，When writing a code to read the GPS height, the height result obtained is not the same as the original value stored in the photo. At present, it is rounded to retain the last two Decimal separator of the GPS height value. Please improve it

[StefanOltmann]

The GPS data is of the TIFF rational type, which means it’s a floating number that can’t have an exact representation. See the docs.

Google Photos rounds two 3 digits after the dot.
Rounding to the last 6 decimal places is the most common thing I see.

GeoLocation.toString() gives you the double numbers without any rounding:

metadata-extractor/Source/com/drew/lang/GeoLocation.java

Lines 150 to 153 in 753cf1f

	public String toString()
	{
	return _latitude + ", " + _longitude;
	}

So I assume you want to see a different format for the DMS here:

metadata-extractor/Source/com/drew/lang/GeoLocation.java

Lines 85 to 86 in 753cf1f

	DecimalFormat format = new DecimalFormat("0.##");
	return String.format("%s\u00B0 %s' %s\"", format.format(dms[0]), format.format(dms[1]), format.format(dms[2]));

Two decimal places for DMS seems to be a very common representation.

How many do you want?