Negative latitude and longitude not saved properly in EXIF

Originator:paewel
Number:rdar://32947587 Date Originated:23-06-2017
Status:Resolved in 10.13 Resolved:yes
Product: Product Version:
Classification: Reproducible:YES
 
Area:
AppKit

Summary:
"exif:GPSLongitude" and "exif:GPSLatitude" does not allow for saving negative doubles to an image file, the resulting image file contains an obviously wrong latitude/longitude

Steps to Reproduce:
Use CGImageDestinationCopyImageSource with a JPG image for example.
Options should contain a dictionary with kCGImageDestinationMetadata key and a GPS dictionary as a value.
GPS dictionary should contain "exif:GPSLongitude" key with a negative value.

Expected Results:
The resulting file will have the same negative value as specified in the GPS dictionary

Observed Results:
The resulting file contains a big negative value, which is not a latitude/longitude degree value

Version:
MacOS Sierra 10.12.5 (16F73)

Comments


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