On 08/04/2011 22:28, Chris Jackson wrote: > Armin > > Thanks for your thoughts, I was thinking along the lines of > http://geoservices.aena-upm.es/map/map.phtml. I hear your session > concerns, I was thinking many elements would be shared, with a master > layout and a child add-on that would just allow loading of different > layers. Can you explain further about custom session management - > couldn't see it on the wiki.
There is no description in the wiki. The session is managed by the file "pmsession.php". In its default set up it only runs "session_start()". But this can be customized, eg. using databases for storing sessions or have other custom functionality integrated. > > As for performance, it was mainly down to my lack of understanding (it > is better now and I use pre-classifying and indexes on vector > shapefiles, and internal tiling/overviews on raster tiffs and consistent > projections). Though I still don't understand how a 80mb tiff with UK > coverage takes longer than a 2gb tiff with much smaller localised > coverage (with similar optimisation) to render when using classes - does > spatial coverage add such an overhead? - I didn't think it was worth > external tiling, maybe I should re-consider. In general I am impressed > with rendering and select performance (using the right browser...). My > benchmarks are ESRI webgis products and considering the difference in > price....well!! > an 80 MB Tiff should not take much time to render if overviews are defined. In principal it should even run quite fast without any overviews set, at least that's what I discovered with ENVI files of 25 - 70 MB, and they're also defined using classes depending on pixel values. I don't think the spatial extent plays any role, the ENVI files I mentioned have a European coverage. armin > Cheers > Chris > ------------------------------------------------------------------------------ Xperia(TM) PLAY It's a major breakthrough. An authentic gaming smartphone on the nation's most reliable network. And it wants your games. http://p.sf.net/sfu/verizon-sfdev _______________________________________________ pmapper-users mailing list pmapper-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pmapper-users
