Drone: yaw (-180 to 180) to GpsImgDirection (0-360)

[vassam]

Hi! I am trying to replace the GpsImgDirection value with the value of the yaw tag but in the format of 0-360. The yaw values goes from -180 to + 180. So I want the positive values to be copied to the GpsImgDirection value and the negative ones firstly to be added 360 and then be copied.
I tried with the if function to do so but all I get is Warning: Not a floating point number.
Help!

[StarGeek]

See this thread from a couple weeks ago.

[vassam]

Yes I saw the thread but when I Tried to apply it for my case a warning pops up.
Warning: Must be a positive number for GPS:GPSImgDirection
I just want to tranform the yaw values of m y images to a 0-360 format (if thery are negative) and then replace the GSPImgDirection value to them.
I don't have a csv.

[StarGeek]

Oops, my mistake for not reading more carefully. Your use is much simpler, only requiring the math part of that command.

Try this
exiftool "-GpsImgDirection<${Yaw;$_=$_+($_<0?360:0)}" /path/to/files/

[vassam]

It works like a charm. Thank you so much!!!

[GoodKarma]

Oops, my mistake for not reading more carefully. Your use is much simpler, only requiring the math part of that command.

Try this
exiftool "-GpsImgDirection<${Yaw;$_=$_+($_<0?360:0)}" /path/to/files/

does this command only work on images with a negative YAW. I just come across this issue with some of my drone files

[Phil Harvey]

The command add 360 to the angle if the value is negative.

- Phil

[GoodKarma]

The command add 360 to the angle if the value is negative.

- Phil

Thanks