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More accurately draw projected turnpoint #486

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philderbeast opened this issue Nov 24, 2020 · 4 comments
Open

More accurately draw projected turnpoint #486

philderbeast opened this issue Nov 24, 2020 · 4 comments

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@philderbeast
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There's enough distortion when drawing circles on the map that these can't be used to assess whether a pilot has made a zone. Please draw something that more accurately represents the projected turnpoint.
@philderbeast philderbeast mentioned this issue Nov 24, 2020
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@philderbeast
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How to draw Tissot's ellipse.

Why leaflet's circle is not a true circle.

@philderbeast philderbeast changed the title More accurately drow projected turnpoint More accurately draw projected turnpoint Nov 24, 2020
@philderbeast
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philderbeast commented Nov 24, 2020 •
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Leaflet can project and unproject and how leaflet does projections.

@philderbeast
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Showing Manfred's track looking like it intersects the turnpoint and then showing the optimal path using spherical and ellipsoid Earth models.

Screen Shot 2020-11-24 at 4 51 43 AM
Screen Shot 2020-11-24 at 12 43 28 PM
Screen Shot 2020-11-24 at 12 44 07 PM

philderbeast added a commit that referenced this issue Nov 24, 2020
@philderbeast
Try using leaflet-ellipse to draw the circles, #486.
869d645
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Drawing the circle with leaflet-ellipse.

Screen Shot 2020-11-24 at 2 32 59 PM
Screen Shot 2020-11-24 at 2 33 19 PM

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@philderbeast