Files
OpenNest/OpenNest.Engine
aj 4e92d0e8f3 fix(planning): route a cut-off from its start to its far end
A cut-off always runs away from its fixed edge: the origin side, the only
edge guaranteed to be a real sheet edge. The part order is proposed as a
traveling-salesman path over one point per placement, and a cut-off's
point was the middle of its line. The route did not know the tool must
arrive at the line's start and leaves at its far end, so the parts
before a sheet-splitting line finished level with its middle, and the
rapid down to its start crossed parts already cut.

Each placement now has an entry and an exit point; they differ only for
cut-offs (start and departure). Nearest neighbor and Or-opt go on from
each part's exit, and 2-opt costs a reversed run along its own directed
legs; with no cut-off on the plate the exits are not passed and the
symmetric route is unchanged. The part cut before a cut-off faces its
start.

Cut-off direction is not chosen here: the order reads each cut-off's start
and end from its program as given, and the joint search may still reverse a
head-locked far-edge segment.
2026-11-01 16:51:09 -05:00
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