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seen Oct 18 '13 at 0:56

Apr
26
comment Time estimates on building overviews for mosaic datasets
So I didn't end up using GDAL. I did however copy my mosaic dataset and run multiple arcgis session to build overviews in parallel. In arcgis 10.1, you can cache directly from a mosaic dataset without building overviews - so at least that is something to look forward too.
Apr
26
awarded  Supporter
Apr
26
accepted Time estimates on building overviews for mosaic datasets
Apr
26
comment Time estimates on building overviews for mosaic datasets
Thanks somemaps. Yea, I've found that the bottleneck in my overview creation was read/write speed rather than CPU speed. I moved from a network drive to a 10,000rpm hard drive and saw overview creation go from 13 days down to under 4 days. However, I was still on the hook for transferring the data to an external drive after that. I will definitely recommend sata/firewire connections for anyone dealing with large volumes of imagery data
Apr
19
answered ArcGIS 10 Raster Mosaicing versus Lizardtech Express Server
Mar
9
comment Creating a map cache without ArcServer?
Aragon - Out of curiosity - Can you specify your tiling scheme using GDAL, or will it always generate tiles based on the google maps tiling scheme?
Feb
23
comment Time estimates on building overviews for mosaic datasets
My single core is maxed out right now ... buliding overviews is also computationally expensive as we are in some cases downsampling 4 images
Feb
23
comment Time estimates on building overviews for mosaic datasets
Straight up, an SSD is out of the question. That is not a good solution to the problem - especially if this method is to be used by other people. If you do have any info on using GDAL i'd be very interested to read up on it though!
Feb
23
comment Time estimates on building overviews for mosaic datasets
Unfortunately I don't think the boss is going to approve the purchase of an SSD! Definitely reading a lot with this process. Building overviews is all about resampling tiles. So at the lowest overview level we read in the affected tiles first, then compute the resampling of the pixels, and output a new image. Then repeat for the next set of images. Do you know of any links directing to the use of GDAL in generating overviews? Anything is worth a try at this point.
Feb
23
comment Time estimates on building overviews for mosaic datasets
Ragi - I will be caching the imagery. The mosaic dataset allows me to manage the imagery spanning multiple years. I can adjust the footprints to eliminate bounding black pixels and also ensure that only the most recent imagery will be displayed.
Feb
23
awarded  Editor
Feb
23
revised Time estimates on building overviews for mosaic datasets
Added Update.
Jan
19
asked Time estimates on building overviews for mosaic datasets
Oct
29
awarded  Teacher
Oct
28
answered Are there any alternatives to ArcScene?
Oct
26
awarded  Student
Oct
26
awarded  Scholar
Oct
26
comment Determine web service endpoints of an existing web application
Wow - Thanks for the tip! This is exactly what I needed. Turns out the application is reading from an xml file instead of an actual service.
Oct
26
accepted Determine web service endpoints of an existing web application
Oct
26
asked Determine web service endpoints of an existing web application