Hi, new QLandkarte GT is out. The new rocking gimmik are the OpenGL extensions by Andrew. It's fun to create a 3D bump map from raster maps and DEM data. Another nice new feature is the symbol search on raster maps by pattern matching.
However the Garmin users are more interested in the news that with todays 0.8.0 release of QLandkarte GT you can load Garmin maps. You need a *tdb file and a basemap. I rewrote the code from scratch and bailed out the former limitations. The new render engine has some advantages: * Low memory footprint as files are read on-the-fly. To show a viewport, only the visible subsections of a file are read. The former performance hit to load and decode entire files before proceeding with the render process is gone. This is quite nice when zooming thru a map. However the overall framerate suffered. Thus moving the map is a bit slow. * Projection can be changed on-the-fly, too. Currently it's fixed mercator. But one future idea is to overlay raster maps with vector maps. In this case the projection has to be changed according to the raster map below. Another idea is to adjust the latitude of true scale dynamically to the viewport. With that map dimensions are the same on every spot of the world. Especially or friends in Island will appreciate. * Nice Google Maps / OSM Mapnik like rendering with anti-aliasing. * Optimized text string placement. Strings colliding with other strings are supressed but shown on closer zoom levels if there is enought space on the canvas. * The render engine is prepared for typ files. But I haven't found a spec. for typ files yet. There is a PERL cgi file http://ati.land.cz/gps/typedit/source.cgi from which one can extract the information. but I am too tired to spent my evenings analyzing PERL code. Thus if anyone feels like supporting this, go ahead. Map upload is still missing, too. I would be happy if someone would have a look the the gmapsupp generation. This has to be simplyfied by using a fixed large segment size. So, what is the future of original QLandkarte? In my point of view it is a lame duck. I will start the next days to extract the drivers as a seperate project and add them to the QLandkarte GT release tree. Once map upload works on GT I will deactivate the QLandkarte project on sf.net and mark it as open for adoption. Thus QLandkarte GT is the future. hope you enjoy the new release Oliver ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ QLandkarte-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/qlandkarte-users
