Hi Simone, I would like to pick up the topic again as I am working on the very same issue at the moment.
As a reminder: We have a bulk of aerial imagery with the requirement to access historical data (i.e. updates are added to the index in regular intervals, but the imagery from a certain point in time should still be accessible after having applied an update). We are intending to serve this with a time-enabled image mosaic, holding the index in a database table. As you already mentioned the ImageMosaic only provides a reasonable performance if you have no more than 50-60 tiles in a view at the same time. Therefore I would create pyramids to achieve a similar performance on every zoomlevel, which I achieve by downsampling the original tiles and mosaicing them to new tiles on currently three levels (we cannot use gdal directly, therefore I am doing this in FME). I have a few open questions with regard to this: - What is the recommended tile size in pixels to achieve a reasonable balance between number of tiles and disk access? - For integration into Geoserver I currently see the option to create an image mosaic for each pyramid level, add scale dependent styles to each of them and then add all of the layers to a layer group (original tile imagemosaic and the three lower resolution overviews). Do you think this would be a good approach? - You're talking about creating a layer based on an ImagePyramid as well, but I guess this would not read the time and add it to the index of the underlying mosaics, will it? Thank you very much in advance! Cheers, Max -- View this message in context: http://osgeo-org.1560.x6.nabble.com/image-mosaic-pyramid-with-time-dimension-tp5073298p5140777.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
