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--- tecnica:gps_cartografia_gis:ricette_gis [2008/02/02 14:38] – external edit 127.0.0.1
+++ tecnica:gps_cartografia_gis:ricette_gis [2018/09/03 19:02] (current) – [Problema con Exiv2 e la libreria Python pexiv] niccolo
@@ Line 34: / Line 34: @@
 gpscorrelate
 </code>
+==== exiv2 ====
+Per scrivere le **coordinate GPS** direttamente nei **tag Exif** bisogna scomporre le coordinate in **gradi**, **primi** e **secondi**. I gradi e i primi si impostano come numeri interi (indicando N/1), mentre per i secondi conviene moltiplicare per 1000 e indicare N/1000:
+<code>
+exiv2 -n UTF-8 -k -M "set Exif.GPSInfo.GPSLatitude 43/1 51/1 7746/1000" file.jpg
+exiv2 -n UTF-8 -k -M "set Exif.GPSInfo.GPSLongitude 11/1 14/1 11433/1000" file.jpg
+exiv2 -n UTF-8 -k -M "set Exif.GPSInfo.GPSLatitudeRef N" file.jpg
+exiv2 -n UTF-8 -k -M "set Exif.GPSInfo.GPSLongitudeRef E" file.jpg
+</code>
+==== Problema con Exiv2 e la libreria Python pexiv ====
+There exist a Python library to add GPS tags to images, here it is the **[[https://github.com/bennoleslie/pexif|home page of the project]]**.
+  * [[https://github.com/Exiv2/exiv2/issues/432]]
+  * [[https://github.com/bennoleslie/pexif/issues/28]]