Personally, I have never had any problems with "trim figure" that I couldn't explain.
Seb, I use both of the methods you mention. If I am real comfortable with what I am doing, I will put everything
in one sketch. If, however, I'm trying something I may not be that familiar with, I'll save the file and then start a new
sketch in case anything breaks. That way, as you say, there is much less to re-do.
Zetopan, load up the sketch below and you can play with it. "Trim Figure" is really one of the basic features of AD.
What version of AD/GD are you using?
Now let me explain the sketch. The top 2 circles are really *4* circles. 2 upper left superimposed and 2 upper
right superimposed. The 2 bottom circles are single circles. Notice the dots at about 12:30 on the upper circles.
That is an indicator that there are more than one. It may also mean something more that I'm not aware of.
Next, notice that the upper right circle has 2 "points" on the rectangle lines. Those are *true trim end points*
of one of the circles. What you are seeing as a "non-trimmed" circle is the underlying circle. If you subsequently
trim that portion again...
Voila!! There's the problem.
And of course, the lower left is all single figures trimmed as you desire.
Hope this helps. I'm guessing, possibly very wrongly, that you haven't been using Alibre very long. Just an innocent
assumption.
-oldfox-