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Manual: Adapt description of "find moved images" functionality

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Adapt description and add example image.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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Berthold Stoeger 2018-06-20 18:56:31 +02:00 • committed by Dirk Hohndel
parent 09fd5c40d1
commit f3db298465
2 changed files with 9 additions and 30 deletions
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Documentation/user-manual.txt
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@ -1898,40 +1898,19 @@ in order to find it when the dive is opened again.
If the photo or the whole photo collection is moved to another drive or to a different If the photo or the whole photo collection is moved to another drive or to a different
machine, the path to the photo changes. Now, _Subsurface_ looks for the photos at their original location before they were moved, machine, the path to the photo changes. Now, _Subsurface_ looks for the photos at their original location before they were moved,
cannot find them and cannot display them. Because, after moving photos, large numbers of photos cannot find them and cannot display them. Because, after moving photos, large numbers of photos
may need to be deleted and re-imported from the new location, _Subsurface_ has a mechanism to ease this inconvenience: automatic updates using fingerprints. may need to be deleted and re-imported from the new location, _Subsurface_ can locate the photos based on their filename and path.
When a photo is loaded into _Subsurface_, a fingerprint for the image is calculated and stored with the
other reference information for that photo. After moving a photo collection (that has already been loaded
into _Subsurface_) to a different directory, disk or computer, _Subsurface_ can:
- look through a particular directory (and all its subdirectories recursively) where photos have been moved to,
- calculate fingerprints for all photos in this directory, and
- if there is a match between a calculated fingerprint and the one calculated when a photo was
originally loaded into _Subsurface_ (even if the original file name has changed), automatically update the directory information so that _Subsurface_ can find the photo in the new moved directory.
This is done by selecting from the Main Menu: _File -> Find moved images_. This brings up a window within This is done by selecting from the Main Menu: _File -> Find moved images_. This brings up a window within
which the NEW directory of the photos needs to be specified. Select the appropriate directory and click which the searching of the images can be controlled. The search is started by clicking on _Select folder and scan_.
the _Scan_ button towards the bottom right of the panel. The process may require several minutes to Since photos taken with different cameras might have the same filename, the names of the parent folders are likewise compared.
complete, after which _Subsurface_ will show the appropriate photographs when a particular dive is opened. Therefore, the root folder of the NEW picture collection should be chosen. For finer control, it is possible to search
only for photographs of the currently selected dive(s) by selecting the appropriate option.
After the searching has finished, the original filenames and the new locations of the photographs will be shown.
The matching parts of the paths are emphasized. Photographs that are found at their known positions are
not listed. The proposed changes can be applied by clicking _Apply_ or rejected by clicking _Cancel_.
[[Image_fingerprint_upgrade]] image::images/FindMovedImages1.jpg["FIGURE:Find moved images",align="center"]
****
*Upgrading legacy photo collections without fingerprints*
[icon="images/icons/important.png"]
[IMPORTANT]
_Subsurface_ automatically calculates fingerprints for all images that it can access.
When manipulating images, ensure that all the images associated with the dive log can be accessed by _Subsurface_.
_Subsurface_ automatically checks and, if necessary, updates the fingerprints associated with a single dive if:
- The images associated with that dive are visible as thumbnails on the *Dive Profile*.
- If you edit anything in the *Notes* panel and save the edits by selecting _Apply changes_.
****
=== Logging special types of dives === Logging special types of dives