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] Links: ------ [1] tel:%2B33%201%2069%2085%2017%2081 [2] https://lists.sourceforge.net/lists/listinfo/sumo-user ------------------------------------------------------------------------------ _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
