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Fixed broken xy2ll computation on southern hemispheres

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This commit is contained in:
Martin Tůma 2017-08-23 10:45:23 +02:00
parent 4e3b6c2eb2
commit 2e2dad8d04
1 changed files with 1 additions and 1 deletions
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src/lambertconic.cpp
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@ -75,7 +75,7 @@ Coordinates LambertConic::xy2ll(const QPointF &p) const
double dx = p.x() - _fe; double dx = p.x() - _fe;
double dy = p.y() - _fn - _R0; double dy = p.y() - _fn - _R0;
double R = sqrt(dx * dx + dy * dy); double R = sqrt(dx * dx + dy * dy);
double q = _q0 - log(R / _R0) / _n; double q = _q0 - log(fabs(R / _R0)) / _n;
return Coordinates(rad2deg(deg2rad(_cm) + dl / _n), rad2deg(iq(_e, q))); return Coordinates(rad2deg(deg2rad(_cm) + dl / _n), rad2deg(iq(_e, q)));
} }