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From: steve (STEVE_HOME)
Hi Michael,
The reason I was looking at this was mainly as I have had problems after using the intersections for trimming. The (tolerance limit)points can be very close and not obvious unless zoomed into, so can cause incorrect trims.
After you mentioned it, I did look at Rhino, and do see the same problem with the snapping, but not with trimming. Rhino must not be using the same tolerance/algorithm for the trims as for snaps.
- Steve
From: Michael Gibson
Hi Steve,
> Rhino must not be using the same tolerance/algorithm
> for the trims as for snaps.
Yeah, there must be some difference between those in Rhino, I would guess that most likely it's a tolerance difference.
But that can lead to some kinds of confusing situations having curve intersections calculated to different tolerance values between snaps and trimming. Aside from different points being generated, there's also potential for something to be considered non-intersecting by trim but considered to be intersecting by the snaps.
In MoI I'd like to keep a consistent behavior between things that use curve intersections, but see if it can be tuned up to give a single point result for these kinds of cases.
- Michael
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