Re: [pmapper-users] Hello!
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From: Chris f. <bak...@gm...> - 2013-02-18 09:15:19
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Hi, Yllka> Interesting topic! If possible, don't forget to show us your final results! Thomas> Thanx, very interesting tip! Should try it asap! (On your example, beware on the UNIQUE typo ; ) With a Shapefile, using an index file (QIX) speeds up data visualisation for sure. Tiling to speed up access to WMS layers, with TileCache or the Mapserver Mapcache. Put the generated/temp files from Mapserver on a RAM disk (IMAGEPATH parameter of the mapfile). Chris On Mon, Feb 18, 2013 at 9:43 AM, Thomas RAFFIN <tr...@si...> wrote: > Hi, > > I've made a hack in pmapper few years ago. This one allows you to > specify 2 data sources for each layer: > LAYER > ..... > DATA "the_geom FROM your_heavy_view USING UNQIUE gid" > METADATA > PM_RESULT_DATASUBSTITION "the_geom FROM your_geo_table USING > UNQIUE gid" > ... > END > ... > END > > For instance " your_heavy_view" is a view that join a geographical table > ("your_geo_table") with many other tables. The attributes "the_geom" and > "gid" have to be the same names and values in both table and view. > > The "DATA" value is the habitual one whereas "PM_RESULT_DATASUBSTITION" > is used to draw / select / query graphically / etc... to speed up pmapper. > > Be careful : all attributes used for label, classitem, binding, etc.. > have to be in the main table. > > It has only been tested with postgreSQL/postigs but could works with > other data types. > > Thomas > > Le 16/02/2013 18:35, yllka baci a écrit : > > Hello Pmapper users.... > > I'm going to write a paper on techniques that speed up data visualisation > > on Web GIS applications. > > Can any one of you tell me the techniques that he (she) knows? > > > > ps: pmapper.net will be the main reference of this paper :) thank you > very > > much for the support. > > -- > > > ------------------------------------------------------------------------------ > The Go Parallel Website, sponsored by Intel - in partnership with Geeknet, > is your hub for all things parallel software development, from weekly > thought > leadership blogs to news, videos, case studies, tutorials, tech docs, > whitepapers, evaluation guides, and opinion stories. Check out the most > recent posts - join the conversation now. > http://goparallel.sourceforge.net/ > _______________________________________________ > pmapper-users mailing list > pma...@li... > https://lists.sourceforge.net/lists/listinfo/pmapper-users > |