trim/boolean/extrude command with curves

 From:  Michael Gibson
4228.15 In reply to 4228.14 
Hi Pilou,

> If after the automatic Sweep I make a zoom the "end"
> (snap point of the path) and middle of the rectangle
> writed "Center" are different.

It looks like in your example you don't have a simple only 4-sided rectangle at the end of your sweep because you're morphing from a rectangle to a pentagon in the sweep, so that causes some of the resulting edges to be made up of various segments instead of just 4 sides.

The center snap will not be very meaningful on that kind of multi-segmented result face, the way center snap works on a face is if the face is bounded by line segments it takes the centroid of those line segments for the center snap. It's not very meaningful on a multi-segmented result with some small lines mixed in with longer lines like you've got there, you should just ignore the center snap in your particular case with that odd geometry.


> for start to move from a known position

If that known position is not the position you want, then why do you care where it is?

At any rate, place a point object and then use Array curve to replicate it the point (use item count = 3) to position a point object at the middle point of the curve. That will allow you to snap on to that location.

- Michael