[jira] [Resolved] (IMAGING-87) [Sanselan] Writing new gps values to jpeg.

["Damjan Jovanovic (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMAGING-87?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Damjan Jovanovic resolved IMAGING-87.
-------------------------------------

    Resolution: Not A Problem

Imaging currently don't modify the EXIF GPS lat/long (or any other EXIF for that matter) in-place, it has to write a new copy.

However, you can read the file contents into a byte array, and use the method that takes a byte array, and specify the original file name as the file to write to. This will overwrite the original file with the updated version instead of generating a new file.

                
> [Sanselan] Writing new gps values to jpeg. 
> -------------------------------------------
>
>                 Key: IMAGING-87
>                 URL: https://issues.apache.org/jira/browse/IMAGING-87
>             Project: Commons Imaging
>          Issue Type: Question
>          Components: Format: JPEG
>            Reporter: Piotr Czajka
>              Labels: newbie
>
> Hello :)
> I want to edit GPS tag and save new GPS latitude and longitude to jpeg.
> I tried to use code from this example 
> http://massapi.com/source/sanselan-0.97-incubator/src/test/java/org/apache/sanselan/sampleUsage/WriteExifMetadataExample.java.html 
> Ok it works but it creates a new jpeg photo with new gps values.. but I would like to save new values to the same photo. How I can do this ?
> Generally I want to create application similar to Picasa (photo viewer + google maps) .. and in this case when I drag and drop marker on map I want to save new gps exif metadata to photo.. so according with this example it will be create new photo every time?

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