Hi Mike,

> Michael... My thought as well on the rebuild. I think I tried it at one point
> but was still dealing with the odd inverting effect.

Well, on the particular file that you sent (School_Chair_Tutorial_Sweep-Issue_01.3dm) if you do a rebuild it doesn't invert anymore...


> So if everything was evened out as far as 'weighting' and 'parameterization'
> would the start-point position of a closed curve still effect the outcome?

No, not really. That's sort of the whole point to the automatic seam matching, that it tries to get things lined up ok without you needing to have to worry about aligning all the start points yourself manually.

And actually on the messed up one it's not the start points that's really messed up, it's the direction, one is flipped where it shouldn't be.

But I'm fairly sure it's because the connection lines that are used for twist minimization are not getting dispersed very evenly across the segmented curve, that's what the uneven parameterization can cause.

- Michael