34 Angle calculation

by coxisambo

40 New version 8.24 problems

by juanecorrea

46 bug with 0.8.23

by Robbins

49 Improve tracking

by maren.halbe

53 Coordinate system

by pauloliveira

58 crash avec 0.8.21

by jlf

59 extra stroke bug

by skurdifur