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eefa9a75f9
Some buggy *.groundnet.xml files (as KSEA currently on TS) define the pushback hold point for some parking positions as a node on a runway. In this case, this the pushback hold point for parking 'North_Cargo_Ramp', defined as node 5344 in Airports/K/S/E/KSEA.groundnet.xml, which is defined twice (second error), first as: <node index="5344" lat="N47 27.774559" lon="W122 18.465257" isOnRunway="1" holdPointType="PushBack" /> and then as: <node index="5344" lat="N47 27.725747" lon="W122 18.159649" isOnRunway="1" holdPointType="PushBack" /> (due to code in flightgear/src/Airports/dynamicloader.cxx, it should be the second one that wins, which is not on a runway but on apron in the north cargo area) As a consequence, when this gate is selected for an AI aircraft, the pushback route has only one node (since the pushback hold point is then the closest point to itself supposedly on runway!), and the corresponding FGTaxiRoute instance has an empty 'routes' member variable, which FGTaxiRoute::next() doesn't handle gracefully (segfault). It may be that an additional check/change could be desirable in FGTaxiRoute::next() in such a case (one node and obviously no route in the FGTaxiRoute instance), however I'm not sure how Durk wants this case to be handled, since FGTaxiRoute::next() seems to iterate on nodes. This fixes the bug reported at: https://forum.flightgear.org/viewtopic.php?p=308397#p308397 and https://sourceforge.net/p/flightgear/mailman/message/35776552/ Thanks to yanfiz and wkitty42 for the report, and to gooneybird for inspecting the groundnet file. |
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Welcome to the FlightGear Flight Simulator project. =================================================== The primary web page for this project is: http://www.flightgear.org For basic installation instructions see the "INSTALL" file. Before you can run FlightGear you will also need to download and install the "base" package which is a collection of textures, sounds, sample scenery, and other data files needed by the sim. For additional install help for specific platforms please browse the "docs-mini/" subdirectory. More complete documentation is available from our web page as a separate distribution. Please take a look at the "Thanks" file for a list of people who have contributed to this project. If you have contributed something but don't find your name in this file. Please send a polite reminder to http://www.flightgear.org/~curt For a summary of changes/additions by version see the "NEWS" file. This project is GPL'd. For complete details on our licensing please see the "COPYING" file. For information on available mailing lists, mailing list archives, and other available source code and documenation, please visit our web site. FlightGear is a product of the collaboration of large international group of volunteers. FlightGear is a work in progress. FlightGear comes with no warrantee. We hope you enjoy FlightGear and/or find it of some value!