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NOTAM area polygon self-intersection
NOTAM area polygon self-intersection
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NOTAM area polygon self-intersection
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mschmoelzer
mschmoelzer
posted 9/14/2016 6:49:57 PM
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Posts: 8,
Visits: 66
Hi,
I noticed that sometimes the area highlighting feature of SkyDemon generates self-intersecting polygons. For example, this NOTAM:
D) DAILY 1600 - 2130
E) NIGHT VFR TRAINING FLIGHTS (NVG OPS)
BURGENLAND AREA OBERWART:
473120N 0161150E
472750N 0163820E
470250N 0160720E
470050N 0162850E
START HELIPORT OEAMTC OBERWART LODO
PARTICIPATING HELICOPTER: OEXEK OR OEXEQ (EC 135) MONITORING
134,675MHZ
F) GND G)2500FT AGL
is displayed as a self-intersecting polygon - see the images in this gallery:
http://imgur.com/a/Sx3i8
I assume this happens due to the order of the vertices (coordinates) in the NOTAM - I think this feature would look much nicer if there was some algorithm involved which can detect this condition and re-order the vertices
Kind regards
Martin
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NOTAM area polygon self-intersection
mschmoelzer
-
9/14/2016 6:49:57 PM
If a NOTAM is published with a list of coordinates that result in a...
Tim Dawson
-
9/15/2016 9:22:24 AM
Thanks, that makes sense to me. I didn't know there was a guideline...
mschmoelzer
-
9/15/2016 7:41:39 PM
Since the "polygon" is not closed, do you think perhaps it was...
Tim Dawson
-
9/16/2016 1:59:03 PM
I sent them an e-mail and asked for clarification: it was intended to...
mschmoelzer
-
9/16/2016 2:17:07 PM
They've made it worse, it would seem. They are now attempting to...
Tim Dawson
-
9/16/2016 2:27:36 PM
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