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[Pather/RenderPather] Add U-bend to trace_into

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jan 2026-03-07 00:03:07 -08:00
commit 0189756df4
2 changed files with 15 additions and 1 deletions
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4
masque/builder/pather_mixin.py
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@ -322,7 +322,9 @@ class PatherMixin(PortList, metaclass=ABCMeta):
(travel, jog), _ = port_src.measure_travel(port_dst)
self.jog(portspec_src, -jog, -travel, **dst_args)
elif numpy.isclose(angle, 0):
raise BuildError("Don't know how to route a U-bend yet (TODO)!")
# U-bend
(travel, jog), _ = port_src.measure_travel(port_dst)
self.uturn(portspec_src, -jog, length=-travel, **dst_args)
else:
raise BuildError(f"Don't know how to route ports with relative angle {angle}")

12
masque/test/test_pather_api.py
View file

@ -228,3 +228,15 @@ def test_pather_trace_into() -> None:
assert 'F' in p.pattern.ports
assert 'E' in p.pattern.ports
assert numpy.allclose(p.pattern.ports['E'].offset, (-10000, 2000))
# 4. U-bend (0 deg angle)
p.pattern.ports['G'] = Port((0, 0), rotation=0)
p.pattern.ports['H'] = Port((-10000, 2000), rotation=0)
p.at('G').trace_into('H', plug_destination=False)
assert 'H' in p.pattern.ports
assert 'G' in p.pattern.ports
# A U-bend with length=-travel=10000 and jog=-2000 from (0,0) rot 0
# ends up at (-10000, 2000) rot pi.
assert numpy.allclose(p.pattern.ports['G'].offset, (-10000, 2000))
assert p.pattern.ports['G'].rotation is not None
assert numpy.isclose(p.pattern.ports['G'].rotation, pi)