[glideplan_swproj] Re: [glideplan_swproj] Re: Line drawing
- From: Tomáš Zámečník <pulcik@xxxxxxxx>
- To: glideplan_swproj@xxxxxxxxxxxxx
- Date: Tue, 24 Apr 2012 09:33:14 +0200 (CEST)
25000km is nonsense, but try to use great circle distance.
I compared task lengths from our competition with lengths measured by Updraft
and they are slightly different (on 150km it differs +/- 5kms).
Compare measurements from cpska.cz, mapy.cz and Updraft whether they are same.
T.
> ------------ Původní zpráva ------------
> Od: Kuba Marek <blue.cube@xxxxxxxxx>
> Předmět: [glideplan_swproj] Re: Line drawing
> Datum: 24.4.2012 00:36:21
> ----------------------------------------
> Is there any realistic chance someone is going to use tasks this large?
> Because if there is, then I need to fix calculations of task distance
> (now it uses euclidean distance in XYZ, it would probably be better to
> use great circle distance)
>
> K
>
> > I found an easy way how to draw lines on the earth surface.
> > It can be done with osgEarth::Symbology::MeshSubdivider, which
> > subdivides (any?) geometry according to ellipsoid surface. It's very
> > easy to use - just call one method on your geometry and specify
> > wheter you want to interpolate according to great circle or not. ...I
> > send screenshot (in attachment) of declaration of 25000km FAI
> > triangle :-)
> >
> > T.
>
>
>
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