question: private static double scoreSequence ( List < LatLong > pts ) { LatLong prev = pts . get ( pts . size ( ) - 1 ) ; LatLong prevprev = pts . get ( pts . size ( ) - 2 ) ; double prevAngle = Math . atan2 ( prev . lat - prevprev . lat , prev . lng - prevprev . lng ) ; double score = 0 ; for ( LatLong pt : pts ) { double angle = Math . atan2 ( pt . lat - prev . lat , pt . lng - prev . lng ) ; double diff = prevAngle - angle ; if ( diff > Math . PI ) diff -= Math . PI * 2 ; else if ( diff < - Math . PI ) diff += Math . PI * 2 ; if ( diff < 0 ) score += 10 ; else score += diff ; prev = pt ; prevAngle = angle ; } return score ; }
target:  How 'good' does this sequence of points look? The sequence must be clockwise and have the least acute angles possible. 