On 12/14/04 at 11:06 AM Chris Metzler wrote:
>Hi. So, I recently got a chance to pick this back up. In principle, >everything is finished: I have a set of signs which are designed >as per the U.S. FAA regs (FAA AC-150-5340-18C, Standards for Airport >Sign Systems, and FAA AC-150-5345-44G, Specification for Taxiway and >Runway Signs). > >I also have a script for generating .stg file entries. Features: > >- can read in airport data in either apt.dat or runways.dat format. >- will generate sign placements either for a single airport, a list >of airports (a list of ICAOs in a file), every airport in apt.dat >or runways.dat (but not heliports or seaplane bases), or every >airport in apt.dat that has the "has runway distance remaining signs" >flag set. >- can place signs using any of the three layout methods given by >the FAA regs. >- makes sure that there are no signs placed on top of intersecting or >nearby runways or taxiways. Specifically, it makes sure that no signs >are placed within 50' of any other runway/taxiway at the airport. It >attempts to adjust the positioning of a sign to avoid such a conflict, >omitting the sign entirely if it'd have to be moved by more than 50' >along the runway length, as per the FAA regs. > >I'd like to contribute this to FlightGear -- I think they'd make a >nice addition to the scenery at the airports where it'd be appropriate >to have them. However, I'm stuck on one thing that I'm hoping those >who build scenery will advise: what's the best way to write this stuff >out? Is the best option to: > >- have the script determine the tile numbers, go to the .stg files, and >insert the sign entries directly? >- have the script create an "installation" script, into which the sign >entries are embedded (e.g. as a here document); such a script could also >have a removal option, to take the signs back out? >- do things monolithically, or by airport (could be lots of files if >doing all relevant airports)? > >To be of most use to the project, how should this script write its info? > Now that we have the 'has distance remaining signs flag' for each runway in the data, I think that your script should be run by genapts during future scenery regeneration, and get put into the Terragear cvs IMHO. As an interim measure for users, I guess inserting directly into the stg files would work. It sounds like you can do this anyway based on the first part of your mail. Cheers - Dave This message has been scanned but we cannot guarantee that it and any attachments are free from viruses or other damaging content: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
