I will be implementing this anyway so I might try directly within SUMO/NETCONVERT, if the overhead won't prove significant. Could you point out where I can read about SUMO software design? It would help with orientation in the code.
Thanks, ~Matej. Le 2015-10-12 06:54, Jakob Erdmann a écrit : > SUMO currently does not interpolate the elevations. I understand the > problem and there is now a ticket for that (see > http://sumo.dlr.de/trac.wsgi/ticket/1962 [1]) > > regards, Jakob > > 2015-10-11 22:57 GMT+02:00 Matej KUBICKA > <[email protected]>: > Ok, so if my understanding is correct I can enforce segmentation of > lanes at different elevation with --geometry.max-segment-length. With > my elevation model having resolution 25x25 meters I can set this > segmentation to, say, 12 meters, which will enforce that no elevation > samples get skipped. > > Does SUMO interpolate the elevations, or not? If not, then the > elevation profiles will contain artifacts which will have ugly effects > on our simulations. > > For example, imagine that we set the segmentation per one meter. If you > do not interpolate the data, then there will be mostly flat edges with > a number of steep steps in elevation (effect, easily so steep that the > car would essentially crashed in them :-)). > > ~Matej. > > PS: I will try to find a time to take a look at the GeoTIFF issue. > > Le 2015-10-11 21:37, Jakob Erdmann a écrit : > > Hello, elevation data may be added to all lane geometries. The > netconvert option > --geometry.max-segment-length can be used to control the spatial > resolution (without the need to add any junctions). We haven't done a > lot of testing with geotiff heightmaps. If you can provide a failing > sample we may be able to track down the error. Please try to find the > smallest sample possible. > > regards, Jakob > > 2015-10-11 16:36 GMT+02:00 Matej KUBICKA > <[email protected]>: > > Hello, > are elevation profiles incorporated in the shape of the lanes? - or, is > it only junctions that have assigned elevation? > > I tried to add GeoTIFF height map to the Luxembourg scenario using "$ > netconvert --sumo-net-file LuSTScenario.net.xml --heightmap.geotiff > EUD_CP-DEMS_2500045000-AA.tif -o LuSTScenario.2.net.xml", hoping that > diff would provide some clues. > > Its output: > _Error: Unknown data type in EUD_CP-DEMS_2500045000-AA.tif._ > _Warning: In lane '--32572_0': Could not build shape._ > _Warning: In lane '-32572_0': Could not build shape._ > _Quitting (on error)._ > > The error is pretty generic and the altitude data come from official > source, so they should be fine. Can SUMO read the projection of the > data? The dataset uses epsg::3035, Lamberth Azimuthal Equal Area > projection. > > Thank you, > ~Matej. > > -- > > Matej KUBICKA > > Phone: +33 1 69 85 17 81 [1] > ------------------------------------------------------------------------------ > _______________________________________________ > sumo-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/sumo-user [2] [2] Links: ------ [1] tel:%2B33%201%2069%2085%2017%2081 [2] https://lists.sourceforge.net/lists/listinfo/sumo-user [2] Links: ------ [1] http://sumo.dlr.de/trac.wsgi/ticket/1962 [2] https://lists.sourceforge.net/lists/listinfo/sumo-user ------------------------------------------------------------------------------ _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
