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Fix pose2 align bug.

release/4.3a0
ss 2020-08-06 14:26:22 -04:00
parent 269dea3a24
commit ccdd1471ed
1 changed files with 4 additions and 4 deletions
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8
gtsam/geometry/Pose2.cpp
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@ -322,10 +322,10 @@ boost::optional<Pose2> align(const vector<Point2Pair>& pairs) {
// calculate cos and sin
double c=0,s=0;
for(const Point2Pair& pair: pairs) {
Point2 dq = pair.first - cp;
Point2 dp = pair.second - cq;
c += dp.x() * dq.x() + dp.y() * dq.y();
s += dp.y() * dq.x() - dp.x() * dq.y(); // this works but is negative from formula above !! :-(
Point2 dp = pair.first - cp;
Point2 dq = pair.second - cq;
c += dp.x() * dq.x() + dp.y() * dq.y();
s += -dp.y() * dq.x() + dp.x() * dq.y();
}
// calculate angle and translation