I've been successfully exporting, layering, and then reimporting my attributes layer previously - however I have encountered a serious problem.
When I try and reimport the map, freeimage either runs out of contiguous memory or the dll crashes.
I exported an Attributes map with no problems:
>> Size (pixels): 24576 x 24576
>> Size (tiles): 6 x 6
>> Tile size: 4096
>> File format: 'PNG' (ext = 'png')
And made edits. However when I go to reimport the mosaic, the application slowly fills up the RAM and then fails (crashing due to freeimage.dll)
Crash Details:
Problem Event Name: APPCRASH
Application Name: L3DT.exe
Application Version: 2.7.0.42
Application Timestamp: 4aeec871
Fault Module Name: FreeImage.dll
Fault Module Version: 3.8.0.0
Fault Module Timestamp: 431b1a5a
Exception Code: c0000005
Exception Offset: 0001305b
It would appear that it is trying to load all the PNG images back in, rather than converting each tile. Given I was able to export the attributes map fine - I figured I would be able to import it back in.
Is there any way I will be able to do this? Would be very handy otherwise I'm not sure how I can get my layered data back in.
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The logfile doesn't record anything, just the intialization:
Initialising mosaic
>> Mosaic name: 'AM'
>> Map type: 'AM' (code = 40)
>> Filename: 'F:\GIS\working\backup'
>> Size (pixels): 24576 x 24576
>> Size (tiles): 6 x 6
>> Tile size: 4096
>> File format: 'PNG' (ext = 'png')
>> Cached tiles: 32
>> Cached bytes: 1073741824
>> Initialised OK
Updating 'Formats.Project maps.Attributes map.PNG' in app list to match mosaic
Initialising mosaic
>> Mosaic name: 'backup'
>> Map type: 'AM' (code = 40)
>> Filename: 'D:\GIS\Aoraki\~exports\backup\aoraki_master_2_backup'
>> Size (pixels): 24576 x 24576
>> Size (tiles): 6 x 6
>> Tile size: 4096
>> File format: 'PNG' (ext = 'png')
>> Cached tiles: 32
>> Cached bytes: 1073741824
>> Initialised OK
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I'm going to try converting all the files to BMPs and importing it as an RGB, then turning it into a mosaic, and then copying it/replacing the AM file with. Not sure if that will work...