Hello Gabriel and Larry – again thank you for your answers – I think the recipe for my mosaic dataset cookbook is almost ready. Sorry just some follow-up points.
Firstly, some additional background we do a lot of pre-processing of our tifs. So there is no overlapping of images. Each tif is a rectangle, all the same size, same properties and they fit together “like squares on a chessboard”. Hopefully that is a ok analogy.
Ok back to the 4 points. And again not real numbers just for the example.
In our Footprint Table for AREA1 the OBJECTIDs for the original 1000 tifs stored in D:\RASTER\tifs\*.tif go from 1
to 1001.
The OBJECTIDs for the tifs I wish to replace are 500,501,502,503
The OBJECTIDs for the Overviews in the Footprint Table go from 1002 to 40000
[1] When I use the “Remove Rasters From Mosaic Dataset” tool how would I set up the parameters? (CHECK or unchecked).
Mosiac dataset: AREA1
Query Definition: where objectid in(500,501,502,503)
Delete Overview Images: ?
Delete Item Cache: <we do not generate a cache>
Advanced
Update Cell Size Ranges: ?
Update Boundary: ?
Marked affected overviews: ?
Remove Mosaic dataset items: ?
I am a little confused after reading the documentation on how/where the relationship between the original tiffs and the overviews are stored. So that if you delete the original tiffs, the associated overviews are also deleted.
[2] ok – so the new tifs in the Footprint Table have OBJECTIDs 40001, 40002, 40003, 40004
[3] ok – hopefully 😉
[4] run the Build Overviews tool
Mosaic dataset: AREA1
Query definition: Do I need to give the new OBJECTIDs here i.e. 40001, 40002, 40003, 40004?
Define missing overview tiles: unchecked
Generate overviews: CHECK
Overview generation options
Generate missing overview images only: unchecked
Regenerate stale overviews images only: CHECK
Is the above correct?