GPS Formatting

[Happy Hobo]

With -c "%.6f", I get this: 42.467761 N, 2.447175 W

With -c "%+.6f", I get this: +42.467761, -2.447175

Is there a way for me to get 42.467761, -2.447175 ?

[Phil Harvey]

I think you mean -c "%+.6f for your second command.

Generally one uses -n for numerical output, but this gives the full precision.

However, there are other ways to deal with this depending on what output formatting you are using.  With -p you could use the advanced formatting feature.

Alternatively you could apply a blunt instrument to remove a leading "+" from all tag values:

exiftool -api filter="s/^\+//" ...

which will filter GPSLatitude and GPSLongitude, but not the 2nd coordinate of GPSPosition.  I don't know what options you are using.

- Phil

[Happy Hobo]

Yes, copy/paste, but I was sure I had added the plus in.  The output is a .gpx file with a -p template.  Changing the command to

Code Select Expand

  exiftool -c "%+.6f"            \
           -api filter="s/^\+//" \
           -p ~/bin/gpxl.fmt     \
           -userparam name="$3"  \
           -userparam desc="$4"   $(ls | sort)  >  /tmp/${2}-l.gpx
worked perfectly.

The latest script and templates are attached for anyone interested.

[Phil Harvey]

OK.  Perhaps a better way to do this is to drop the -c option and revise your -p format file to use expressions like this:

${gpslatitude#;$_=sprintf("%.6f",$_)}

- Phil

[Happy Hobo]

${gpslatitude#;$_=sprintf("%.6f",$_)}

That appears to work (without -c) but

Code Select Expand

#[BODY]        <ele>${gpsaltitude#;$_=sprintf("%.1f",$_)}</ele>
on the next line creates precisions from one digit to six.

[Phil Harvey]

You want 1 digit after the decimal point, or 1 digit precision?

For 1 digit precision use "%.1g" instead of "%.1f".  But it will switch to exponential format if the number is too high.

- Phil