Re: Memory management and large-scale scans on iOS

Posted by matlabbe on
URL: http://official-rtab-map-forum.206.s1.nabble.com/Memory-management-and-large-scale-scans-on-iOS-tp10299p10312.html

Hi,

You may check my answer here: http://official-rtab-map-forum.206.s1.nabble.com/iOS-best-practices-for-only-tracking-long-recordings-tp10300p10311.html

If you search rtabmap on sketchfab (https://sketchfab.com/search?q=rtabmap&type=models), you will see some scans in caves, though maybe not as huge as you do. Note that these scans were mostly taken with RTAB-Map on Google Tango phones. The iOS app should produce similar results.

Note that if RTAB-Map crashes, it is possible to recover the database. There would be a rtabmap.tmp.db in RTAB-Map folder on the device. You can backup that file somewhere else. Here 3 ways to recover it:
1. Normally if you re-open RTAB-Map iOS app, it should detect that there is an unfinished scan and ask you to recover it.
2. copy rtabmap.tmp.db on a computer and recover it with rtabmap-recovery CLI tool.
3. copy rtabmap.tmp.db on your computer under ~/Documents/RTAB-Map (the folder automatically created when you launch RTAB-Map Desktop the first time). Open RTAB-Map's desktop app, then click on "New Database" and you should get a warning telling that an incomplete database exists and ask you if you want to recover it, click Yes.

cheers,
Mathieu