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 Revival
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Apr
8
revised Latitude & Longitude values from Simple Voyage Data Recorder [SVDR]
Mixed up " and ' for minutes and degrees
Apr
8
awarded  Revival
Apr
8
awarded  Editor
Apr
8
revised What does 'Course Made Good' in NMEA string mean?
added 3 characters in body
Apr
8
answered Latitude & Longitude values from Simple Voyage Data Recorder [SVDR]
Apr
8
awarded  Teacher
Apr
8
answered What does 'Course Made Good' in NMEA string mean?
Sep
18
awarded  Scholar
Sep
18
accepted Algorithm for splitting polygons/polylines into multiple sections at 180° E/W
Sep
18
answered Algorithm for splitting polygons/polylines into multiple sections at 180° E/W
Aug
16
comment Algorithm for splitting polygons/polylines into multiple sections at 180° E/W
Which side is "inside" isn't much of a concern for me as long as the object closes properly. I know that's a bit contradictory, as it's important to know which side is the inside in order to close it. I have another system that basically acts as my reference for drawing these objects (I'm implementing OTH-Gold Overlay support, if that means anything to you) which I believe takes whichever side contains both poles, or the side that contains the smaller are in the case of encompassing a pole as the inside.
Aug
16
comment Algorithm for splitting polygons/polylines into multiple sections at 180° E/W
@whuber: Which pole only matters when using a non-transparent fill. For your example, the fill side would be possibly undefined. Otherwise, it's generally the side with the smaller area. Polygons are less well defined than other objects like circles and sectors where the inside is pretty well defined.
Aug
16
comment Algorithm for splitting polygons/polylines into multiple sections at 180° E/W
@whuber: That sounds like it's on the same lines as the solution I presented, but it seems like that won't handle an enclosed pole.
Aug
16
awarded  Student
Aug
16
asked Algorithm for splitting polygons/polylines into multiple sections at 180° E/W
Aug
15
awarded  Autobiographer