Re: [Flightgear-devel] Lat Lon vs. Deg Min
Am 29.07.11 15:18, schrieb HB-GRAL: > Am 29.07.11 12:15, schrieb Durk Talsma: >> Hi, >> >> On 29 Jul 2011, at 02:54, HB-GRAL wrote: >> >>> Hi Geos >>> >>> Can someone explain me why we use >>> >>> lat="N37 42.807" >>> lon="W122 12.963" >>> >>> in parking.xml and groundnet.xml >>> >> >> This is mainly for historic reasons. I started out using an example ground >> network file that was made using an editing tool that was originally created >> to MSFS, if I recall correctly. FlightGear groundnet support was developed >> from that example file, and the taxidraw export functions were in turn >> developed from this as well. >> >> If you have a need to change that, please let me what and how you would like >> this to be changed. We do need to keep some compatibility with the current >> format, but I don't think that it's would be too hard to make flightgear >> distinguish a two number format containing (NEWS keywords, vs a single >> decimal floating point number). I would be open to changing that. >> >> cheers, > > Hi Durk and Ron > > Thanks for replying here. My problem is the precision when I convert > this values to lat-lon. How does fgfs convert this values to lat lon and > what is the precision you should get with this values ? > > Thanks, Yves Hi again, I got more precision now by changing the calculation a bit. But when you decide once to have the same lat/lon values (degrees decimal) everywhere (tower, threshold, parking), would be very nice. Cheers, Yves Thanks, Yves -- Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Lat Lon vs. Deg Min
Am 29.07.11 12:15, schrieb Durk Talsma: > Hi, > > On 29 Jul 2011, at 02:54, HB-GRAL wrote: > >> Hi Geos >> >> Can someone explain me why we use >> >> lat="N37 42.807" >> lon="W122 12.963" >> >> in parking.xml and groundnet.xml >> > > This is mainly for historic reasons. I started out using an example ground > network file that was made using an editing tool that was originally created > to MSFS, if I recall correctly. FlightGear groundnet support was developed > from that example file, and the taxidraw export functions were in turn > developed from this as well. > > If you have a need to change that, please let me what and how you would like > this to be changed. We do need to keep some compatibility with the current > format, but I don't think that it's would be too hard to make flightgear > distinguish a two number format containing (NEWS keywords, vs a single > decimal floating point number). I would be open to changing that. > > cheers, Hi Durk and Ron Thanks for replying here. My problem is the precision when I convert this values to lat-lon. How does fgfs convert this values to lat lon and what is the precision you should get with this values ? Thanks, Yves -- Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Lat Lon vs. Deg Min
Hi, On 29 Jul 2011, at 02:54, HB-GRAL wrote: > Hi Geos > > Can someone explain me why we use > > lat="N37 42.807" > lon="W122 12.963" > > in parking.xml and groundnet.xml > This is mainly for historic reasons. I started out using an example ground network file that was made using an editing tool that was originally created to MSFS, if I recall correctly. FlightGear groundnet support was developed from that example file, and the taxidraw export functions were in turn developed from this as well. If you have a need to change that, please let me what and how you would like this to be changed. We do need to keep some compatibility with the current format, but I don't think that it's would be too hard to make flightgear distinguish a two number format containing (NEWS keywords, vs a single decimal floating point number). I would be open to changing that. cheers, Durk -- Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Lat Lon vs. Deg Min
On Thursday 28 July 2011 18:54:21 HB-GRAL wrote: > Hi Geos > > Can someone explain me why we use > > lat="N37 42.807" > lon="W122 12.963" > > in parking.xml and groundnet.xml > > and not lat/lon formats like we use it for runways and it is used in > apt.dat and other data files ? > > Thanks, Yves Because parking.xml/groundnet.xml predates everthing else, but decimal degrees are much nicer to work in. Ron -- Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Lat Lon vs. Deg Min
Hi Geos Can someone explain me why we use lat="N37 42.807" lon="W122 12.963" in parking.xml and groundnet.xml and not lat/lon formats like we use it for runways and it is used in apt.dat and other data files ? Thanks, Yves -- Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
