A NavDB web service: Difference between revisions

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== Background ==
== Background ==
{{Main article|Navdata cache}}
{{Main article|Navdata cache}}
{{FGCquote
|1= we'll need the capability to to have two clients access the NavDB concurrently - I've hit lots of errors trying to do this
|2= {{cite web
  | url    = http://sourceforge.net/p/flightgear/mailman/message/34725710/
  | title  = <nowiki>[Flightgear-devel] HLA Update</nowiki>
  | author = <nowiki>Stuart Buchanan</nowiki>
  | date  = Dec 29th, 2015
  | added  = Dec 29th, 2015
  | script_version = 0.23
  }}
}}
A user once asked in the forums whether FG wouldsupport navaids not only from the nav.dat.gz file, but from files in custom sceneries.
A user once asked in the forums whether FG wouldsupport navaids not only from the nav.dat.gz file, but from files in custom sceneries.
For example, in ULLI airport there is a problem with glideslope and NDB at the O0outer markers and there are missing NDBs at middle markers. A user made a correct version of nav.dat.gz, but it worked only on his computer. He could distribute his scenery with the fixed nav.dat.gz, but if another player had made his own modifications in his own nav.dat, they would conflict. It would be possibls to write instructions how to find bad data and replace it with good data, but not every player wants to do such things, especially, if he has played MSFS earlier. That the main problem.<ref>{{cite web |url=http://forum.flightgear.org/viewtopic.php?p=174016#p174016
For example, in ULLI airport there is a problem with glideslope and NDB at the O0outer markers and there are missing NDBs at middle markers. A user made a correct version of nav.dat.gz, but it worked only on his computer. He could distribute his scenery with the fixed nav.dat.gz, but if another player had made his own modifications in his own nav.dat, they would conflict. It would be possibls to write instructions how to find bad data and replace it with good data, but not every player wants to do such things, especially, if he has played MSFS earlier. That the main problem.<ref>{{cite web |url=http://forum.flightgear.org/viewtopic.php?p=174016#p174016

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