Re: [Flightgear-devel] A question regarding accurate taxiways information
On October 11, 2005 09:42 am, Vassilii Khachaturov wrote: 1) by some kind of image processing following the Ghostview output. Of course, since the internal graphics is vector, it might be possible to infer more from various rendered resolutions. 2) Other approach would be to reverse engineer the original PS, if any, from the PDF --- I'm afraid it's not very gratifying... Why would there be needs of reverse engineering? The purpose of reading the PDF file is only to extract the taxiways' outline. 3) Yet another approach would be to ask the FAA for the data source feed --- after all, this is U.S. government work that is in public domain. And, of course, this is only a US-related solution... I have seen airport diagrams in PDF format for airports in countries other than the US. For example: http://www.sia.aviation-civile.gouv.fr/aip/enligne/metropole/aip/VAC/T/VAC AD 2.LFBO.pdf Ampere ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] A question regarding accurate taxiways information
Since FAA has airport diagrams in PDF format, would it be possible to extract taxiways information BTW, the tower and the beacon, if any, can also be extracted from it, as well as the windsocks, ILS hold lines etc. directly from a PDF file such as this http://204.108.4.16/d-tpp/0510/00375AD.PDF to produce taxiways usable in FlightGear? 1) by some kind of image processing following the Ghostview output. Of course, since the internal graphics is vector, it might be possible to infer more from various rendered resolutions. 2) Other approach would be to reverse engineer the original PS, if any, from the PDF --- I'm afraid it's not very gratifying... 3) Yet another approach would be to ask the FAA for the data source feed --- after all, this is U.S. government work that is in public domain. And, of course, this is only a US-related solution... Vassilii ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] A question regarding accurate taxiways information
Since FAA has airport diagrams in PDF format, would it be possible to extract taxiways information directly from a PDF file such as this http://204.108.4.16/d-tpp/0510/00375AD.PDF to produce taxiways usable in FlightGear? Ampere ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
