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96 lines
3.2 KiB
96 lines
3.2 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# airspace checker
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# Copyright (C) 2010 Marc Poulhiès
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import osgeo.ogr
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import osgeo.osr
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import os
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import os.path
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import sys
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import airspace.parser
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import airspace.util
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import airspace.track
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p = airspace.parser.OAIRParser(sys.argv[1])
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print "Parsing..."
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p.parse()
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print "[OK] %d zones" %len(p.zones)
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track = airspace.track.loadSimpleTxt('toto.txt')
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print track.GetPointCount()
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found_an_intersection = 0
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intersected_segs = []
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print "Track bbox: ", track.GetEnvelope()
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zones_to_check = p.zones.intersection(track.GetEnvelope())
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print "Potential crossed zones:", len(zones_to_check)
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for zone in zones_to_check:
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##for zone in p.zones.list:
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poly = zone.finish()
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if poly.Intersect(track):
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found_an_intersection += 1
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print "Intersection with", zone.name
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intersected_segs.append((airspace.util.getSubLineStringInZone(track,poly), zone))
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if found_an_intersection > 0:
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print "Found %d potential intersections." % found_an_intersection
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true_positive_inters = {}
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false_positive_inters = {}
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print intersected_segs
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for subtracks,interzone in intersected_segs:
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confirmed = False
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for subtrack in subtracks:
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for pt_idx in xrange(subtrack.GetPointCount()):
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lon,lat,alt = subtrack.GetPoint(pt_idx)
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ceil_alt = interzone.getCeilAtPoint(lat,lon)
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floor_alt = interzone.getFloorAtPoint(lat,lon)
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if alt > floor_alt and alt < ceil_alt:
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confirmed = True
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print "%f/%f@%f in zone '%s' (%f< %f < %f)" % (lat,lon,alt,
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interzone.name,
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floor_alt, alt, ceil_alt)
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if confirmed:
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if interzone in true_positive_inters:
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true_positive_inters[interzone].append(subtrack)
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else:
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d = [subtrack]
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true_positive_inters[interzone] = d
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else:
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if interzone in false_positive_inters:
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false_positive_inters[interzone].append(subtrack)
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else:
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d = [subtrack]
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false_positive_inters[interzone] = d
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print "confirmed inter: %d" % len(true_positive_inters)
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print "false positive inter: %d" % len(false_positive_inters)
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for zone,tracks in true_positive_inters.items():
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print "inter with :", zone.name
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else:
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print "No intersection found."
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##airspace.util.writeGeometriesToShapeFile(intersected_segs, "test.shp")
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