New issue 444: Length along Path seems not valid https://bitbucket.org/valentinateam/valentina/issues/444/length-along-path-seems-not-valid
Using the Length along SplinePath Tool:
The first image shows the bigger picture, the blue dotted line on the bottom are the reference lines, used for measurement. The second enlarged image shows the transition of the points from the blue reference line onto the Spline Path. As it can be clearly seen the path-bound distance between those two points on the Spline Path do not match de reference distance.