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Home Forums Silverlight Programming Report a Silverlight Bug DeepZoom Composer issue
1 replies. Latest Post by Wilfred Pinto on April 25, 2008.
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brainbox
Member
97 points
133 Posts
04-25-2008 7:12 AM |
I've got an image about 25000X20000 px size. I have got 6 parts of this image in png format (each of them is about 16Mbytes). So, I've successfully imported them and then composed into one image, but failed to export it (i waited for 1 hours till I have broke this process).
I have successfully exported one part of this image. (it takes about 5 minutes to finish this task) So I think that DeepZoom Composer failed to export whole image, because it failed allocate need size of memory (I have 2Gbytes of RAM).
What do you think?
Wilfred ...
Participant
1318 points
258 Posts
04-25-2008 11:08 AM |
Not sure if you read this blog already but I strongly suggest it since Randy George has done some good work here which might help you out: http://www.cadmaps.com/gisblog/
From his blog
The largest mosaic I was able to get Deep Zoom Composer to accept was 8×8 or 16000px x 16000px which is just 4000m x 4000m on the ground. Feeding this 143Mb mosaic through Composer resulted in a pyramid consists of 5344 jpg files at 82.3Mb. However, scaling to a 5000m x 5000m set of 100 tif, the 221Mb mosaic, failed on import to Deep Zoom Composer. I say failed, but in this prerelease version the import finishes with a blank image shown on the right. Export works in the usual quirky fashion in that the export progress bar generally never stops, but in this case the pyramid also remains empty
Note that although he is talking about jpg/tif images and not png images, it does seem like there is some limitation with Deep Zoom Composer at this time.
Wilfred Pintohttp://projectsilverlight.blogspot.com
DeepZoom Composer issue