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User talk:Bigstones/Essay:A plan for a reorganization of the wiki: Difference between revisions
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User talk:Bigstones/Essay:A plan for a reorganization of the wiki (view source)
Revision as of 09:00, 8 May 2014
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I never looked at the thread, but I could explain what's involved here - however, it's not exactly straightforward, because our scenery is compiled "offline", and it also uses the same data. There are several dependencies in place here that are not obvious to bystanders. We've had quite a few discussions about doing this sort of thing. So we generally discourage rebuilding your own navdb, unless you know exactly what you're doing (including the TG side of things)-which would mean that you wouldn't be asking the question :-) --[[User:Hooray|Hooray]] ([[User talk:Hooray|talk]]) 07:57, 7 May 2014 (UTC) | I never looked at the thread, but I could explain what's involved here - however, it's not exactly straightforward, because our scenery is compiled "offline", and it also uses the same data. There are several dependencies in place here that are not obvious to bystanders. We've had quite a few discussions about doing this sort of thing. So we generally discourage rebuilding your own navdb, unless you know exactly what you're doing (including the TG side of things)-which would mean that you wouldn't be asking the question :-) --[[User:Hooray|Hooray]] ([[User talk:Hooray|talk]]) 07:57, 7 May 2014 (UTC) | ||
: I asked that because I've found some hints about "contributing to navaid data", in a "notice to volunteers" in a modeling article (sic) (see [http://wiki.flightgear.org/index.php?title=Modeling_-_Getting_Started&diff=prev&oldid=70555 here], 3rd red block, then moved [[Volunteer#Making airports|here]].). I wanted to know if that's actually open to volunteering, like sending Robin new apt.dat's. (I'd actually like to understand what navigation data has to do with scenery. I am curious about that ~100MB file generated any time I add/remove some scenery.) --[[User:Bigstones|Bigstones]] ([[User talk:Bigstones|talk]]) 20:03, 7 May 2014 (UTC) | : I asked that because I've found some hints about "contributing to navaid data", in a "notice to volunteers" in a modeling article (sic) (see [http://wiki.flightgear.org/index.php?title=Modeling_-_Getting_Started&diff=prev&oldid=70555 here], 3rd red block, then moved [[Volunteer#Making airports|here]].). I wanted to know if that's actually open to volunteering, like sending Robin new apt.dat's. (I'd actually like to understand what navigation data has to do with scenery. I am curious about that ~100MB file generated any time I add/remove some scenery.) --[[User:Bigstones|Bigstones]] ([[User talk:Bigstones|talk]]) 20:03, 7 May 2014 (UTC) | ||
:: contributing to new/improved navaid data is indeed appreciated, but different from actually using it in FlightGear. To better understand the motivation behind asking people for navdb updates (R.Peel), you need to understand that the original data source (DAFIFT) has been discontinued, so that the corresponding data is no longer freely available to projects like FG/XP etc. According to R.Peel's website, they're currently planning to come up with a web-based interface that would allow people to contribute directly in some kind of wiki-like fashion, which is something that we've been discussing on our forums for years. We have some contributors who worked on similar tools, so it would make sense to coordinate things a little-but otherwise, contributing improved data doesn't necessarily mean that you'll be able to directly use it in FG. The ~200MB file you are referring to is a SQLite database created from those plain text files, so that we can better support geospatial queries (=more efficient spatial searches). In addition, it's intended to reduce the startup/initialization overhead, by building the DB once and then using the pre-created cache subsequently. In theory the feature itself is great, but it has caused quite a bit of headache over the years, because there are numerous issues that only show up for some people, such as the process taking hours to re-build the cache, weird localization issues and other performance issues.--[[User:Hooray|Hooray]] ([[User talk:Hooray|talk]]) 09:00, 8 May 2014 (UTC) | |||
== Approaching CategoryTree == | == Approaching CategoryTree == | ||