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view ZoneDetect.md @ 2798:d9764817aad8
Collection preview
If the folder containing collection files (usually
$HOME/.local/share/geeqie/collections) is opened, the image pane will
show a montage of the thumbnails (to a maximum of 20) of the images in
the selected collection.
Requires ImageMagick.
This is a simplistic implementation, and should be improved e.g.
Use collect-io.c to parse the collection file
Use cached thumbnails instead of re-creating
Use Geeqie to create the montage instead of using ImageMagick
| author | Colin Clark <colin.clark@cclark.uk> |
|---|---|
| date | Wed, 18 Jul 2018 10:16:41 +0100 |
| parents | 8bab8ac8ade0 |
| children |
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The detection of timezone is performed by [ZoneDetect](https://github.com/BertoldVdb/ZoneDetect) timezone16.bin has a longitude resolution of 0.0055 degrees (~0.5km). timezone21.bin has a longitude resolution of 0.00017 degrees (~20m). The safe zone result indicates how close you are to the nearest border (flat earth model using lat and lon as x and y), so you can know when to do a new lookup. If you don't need it you can ignore it, in this case you can pass a NULL parameter to save the (very small) calculation effort. Note that the [underlying database](https://github.com/evansiroky/timezone-boundary-builder) will change from time-to-time.