I second the last point! There was one time I made a change but just couldn’t see the change when running a test scenario. Took me half a day to figure it out. Using a debugger may be helpful.
Qichao On Mon, Dec 13, 2021 at 12:59 AM Harald Schaefer <fechs...@gmail.com> wrote: > Hi Marvin, > > to understand SUMO code and tests the following (Linux) commands are > helpful for me (started from the base dir of a sumo-all package) > > find src -name '*.cpp'|xargs grep indirectLeft > > Find all places in cpp files below src, which contain the string > indirectLeft > > find tests -type f -print0 |xargs -0 grep indirect > > Find all places in the test suite, which use the string indirect (the > print0 / -0 arguments are needed for file names with blanks) > > These commands work also under Windows in a cygwin environment or WSL > (Windows Subsystem for Linux). > > Search the internet for "linux use find and xargs" for explanations. > > Another error (which I have made myself too) is: > > You change a program and see no changes. The reason is due to the settings > in the PATH-Variables the previously installed program gets executed, not > your modified one. > > Have fun and success in your project, > > Harald > Am 12.12.21 um 23:06 schrieb Jakob Erdmann: > > If you are experienced in C++ programming and analyzing other peoples code > then changing some variables and seeing what happens can be a viable > approach to understand netconvert / netedit. Note, that we don't have the > resources to teach you any of this nor to explain the details of the > codebase. > > Otherwise I'd recommend a different route: > - develop a formula that describes the parameters of intersections with > indirect left bicycle turns (ideally, you can back your formula and its > numerical parameters with a number of real world examples) > - use sumolib to find these intersections for a given .net.xml file > https://sumo.dlr.de/docs/Tools/Sumolib.html > - write a python program that defines xml patch files for these > connections that sets the 'indirectLeft' attribute > - > https://sumo.dlr.de/docs/Networks/PlainXML.html#connection_descriptions > - > https://sumo.dlr.de/docs/Tutorials/ScenarioGuide.html#modifying_the_network > - if you are confident that your formula works well, document the formula > and your example data and let me worry about getting it plugged into > netconvert / netedit. > > regards, > Jakob > > Am Sa., 11. Dez. 2021 um 19:04 Uhr schrieb Gran, Marvin < > marvin.g...@campus.tu-berlin.de>: > >> Hello, >> Jakobs answer was very helpful! I followed his advice and looked for the >> attribute 'indirectLeft' in the NetConvert. The NetConvert uses the >> NBNetBuilder, which uses the NBEdge. There is a function buildInnerEdges >> which uses this variable in a significant way. I tried to set it to True on >> a trial basis, expecting that this would result in the Netedit building >> indirect lefts everywhere. If this would have worked I would have been at >> the right place in the code and could have started my planned changes here. >> Unfortunately I could not notice any change after recompiling the solution, >> which confused me a lot. Am I at the right place of the code or completely >> wrong? >> Best regards, Marvin Gran >> ------------------------------ >> *Von:* sumo-dev <sumo-dev-boun...@eclipse.org> im Auftrag von Jakob >> Erdmann <namdre.s...@gmail.com> >> *Gesendet:* Donnerstag, 9. Dezember 2021 15:24:13 >> *An:* sumo developer discussions >> *Betreff:* Re: [sumo-dev] Student project >> >> Hello, >> each connection already has the attribute 'indirectLeft' which controls >> whether it should be a smooth curve (like a car) or consist of two straight >> sections and this attribute can be set in netedit. Hence I don't think a >> netedit extension is needed. >> However, it would be useful to add netconvert option that enables a >> heuristic for setting this attribute automatically based on junction size, >> road speed, road class or anything else that might be a contributing >> factor. This should mainly take effect when importing network data without >> fully specified connections but could also be designed to permit updating >> existing .net.xml files >> Note, that such an option would also take effect when creating new >> intersections in netedit since it uses netconvert as a back-end for >> guessing connections. >> >> see also https://sumo.dlr.de/docs/FAQ.html#how_do_code_contributions_work >> >> regards, >> Jakob >> >> >> Am Do., 9. Dez. 2021 um 14:09 Uhr schrieb Gran, Marvin < >> marvin.g...@campus.tu-berlin.de>: >> >>> Hi, >>> I am a student from TU Berlin in Germany and represent a student group >>> of 7 people who want to create an extension for Sumo. We are primarily >>> interested in making the behavior of cyclists more realistic based on >>> collected data. Our current idea is to make cyclists behave differently at >>> intersections depending on the size of the intersection and the surrounding >>> traffic. Depending on the factors mentioned above, cyclists should either >>> turn left directly like a car or alternatively make an indirect bycycle >>> turn. Our approach is to work in Netedit, so that the connections at >>> intersections are automatically generated differently depending on these >>> factors. We are still at the beginning of the project and wonder if this is >>> going in the right direction? Also a pointer where to do such changes in >>> Netedit would be great! >>> Best regards, Marvin Gran >>> _______________________________________________ >>> sumo-dev mailing list >>> sumo-dev@eclipse.org >>> To unsubscribe from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-dev >>> >> _______________________________________________ >> sumo-dev mailing list >> sumo-dev@eclipse.org >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-dev >> > > _______________________________________________ > sumo-dev mailing listsumo-...@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-dev > > _______________________________________________ > sumo-dev mailing list > sumo-dev@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-dev >
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