unsubscribe -----Original Message----- From: gdal-dev [mailto:[email protected]] On Behalf Of Luca Bertoncello Sent: Wednesday, December 29, 2021 5:49 AM To: [email protected] Subject: [EXTERNAL] Re: [gdal-dev] Get max elevation on "squares"
EXT email: be mindful of links/attachments. Am 29.12.2021 um 11:42 schrieb Andrew C Aitchison: > Is this the max or the average height of the square ? Mmmm... Now I'm unsure... > Do you need to warn of pylons, skyscrapers, bridges or radio masts ? > These are unlikely to be included in such map data. None of them. Gound elevation > I note that you say aircraft must fly above 600m but this wont apply > to working helicopters and takeoff/landing. Well, I simplified... <flying instructor mode> ICAO says: 2000ft over GND reduced to a minimum of 500ft over GND if coulds or airspace obligate the pilots to descend. Under 500ft GND to fly is just for take off and landing allowed. Helicopters need a special permission to descend the 500ft GND, too. </flying instructor mode> ;) Regards Luca Bertoncello ([email protected]) _______________________________________________ gdal-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/gdal-dev
