Hi Simone, Below are my answers to you questions:
1. The slides suggest that ImageMosaic should not be used if the number of files is high and instead use ImagePyramid. I changed to use ImageMosaic and the performance is good. 2. Not sure if it is neccessary, but the reason for warping to EPSG:3857 is because I have other layers such as OSM which already has that projection. Also, we use Leaflet engine for displaying maps and I believe its default projection is EPSG:3857. Also, is it desirable not to have Geoserver perform re-projection on the fly? 3. We are using the latest stable Geoserver version 2.5.0. 4. Here is the content of the Mosaic.properties #-Automagically created from GeoTools- #Thu Apr 24 15:52:05 GMT+00:00 2014 Levels=1.3832528371921782,1.3832528371921782 2.766505674384357,2.7665056743843564 5.531165781274127,5.533011348768713 11.05495667483989,11.066022697537425 22.10991334967978,22.1320 4539507485 44.10222077728679,44.17375591098613 88.20444155457358,87.98837559505368 176.40888310914715,174.55758384180004 Heterogeneous=true AbsolutePath=false Name=Sioux-Falls TypeName=Sioux-Falls Caching=false ExpandToRGB=false LocationAttribute=location CheckAuxiliaryMetadata=false LevelsNum=8 5. What I am doing is to provide some means for the user to download the NAIP imagery from the website and upload them to our map server, which is Geoserver, prepare the data, and install them onto Geoserver for rendering. Since we have no control on how the user download the NAIP imagery, the number of files can be large. I have tried with a download that has 120 jp2 files and used ImagePyramid for it. The performance was really good. One thing I noticed is the size of the pyramid is big; it is 16 GB. Your suggestion of merging some of the original jp2 files sound great but I am not sure what is the best way to do it since the number of jp2 files is unpredictable and the process has to be done by some script. Can you give me some ideas? Also, is there a limit of the number of GeoTiff files before the performance of ImagePyramid becomes degraded. Thanks, Tam -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Prepare-GeoTiff-data-for-optimal-performance-tp5136963p5137629.html Sent from the GeoServer - User mailing list archive at Nabble.com. ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
