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Hi [-hh], thank you for the explanation. Actually I had understand this, unfortunately I explained it bad in my post, sorry.
I think that automatic cutting a one-segment drawing into parts would be a great step forward for this project.

Maybe a way could be to try to identify the change of directions of a polygon. I market some of them in the picture. Do you think that would be possible to accomplish this? I tried to accomplish it but found that it's a goal too much hard.

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Hi [-hh],

I can't understand the logic with which the cuts are made. In this image there is the splits made ​​by smoothDraw2, and in the below row as it should be splitted (only curves and lines). Maybe I have the wrong settings?

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Hi, I found your latest version a lot improved. Great work!

I think the weak point is still the recognition of the various curves. Maybe this would be enough to simply implement a system that detects when a segment changes direction. Like the system that I implemented in my first version: if a point with respect to the two previous points continues its trend (eg. up,up or down,up) then the direction is the same.

Reducing shivering it's a very important feature, well done. I have some difficulties to understand how you implemented it. Too much math for me

For those interested in the subject, I opened a topic on freehand's draw quality here: http://forums.livecode.com/viewtopic.php?f=8&t=20894