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Improve length accuracy Issue #1136, minor typing fixes

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gumyr 2025-11-21 15:09:11 -05:00
parent 26caed754c
commit bc8d01dc7e
2 changed files with 15 additions and 12 deletions
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23
src/build123d/topology/one_d.py
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@ -305,7 +305,9 @@ class Mixin1D(Shape[TOPODS]):
@property
def length(self) -> float:
"""Edge or Wire length"""
return GCPnts_AbscissaPoint.Length_s(self.geom_adaptor())
props = GProp_GProps()
BRepGProp.LinearProperties_s(self.wrapped, props)
return props.Mass()
@property
def radius(self) -> float:
@ -796,19 +798,20 @@ class Mixin1D(Shape[TOPODS]):
for obj in common_set:
match (obj, target):
case (_, Plane()):
assert isinstance(other.wrapped, gp_Pln)
target = Shape(BRepBuilderAPI_MakeFace(other.wrapped).Face())
operation = BRepAlgoAPI_Section()
result = bool_op((obj,), (target,), operation)
operation = BRepAlgoAPI_Common()
result.extend(bool_op((obj,), (target,), operation))
operation1 = BRepAlgoAPI_Section()
result = bool_op((obj,), (target,), operation1)
operation2 = BRepAlgoAPI_Common()
result.extend(bool_op((obj,), (target,), operation2))
case (_, Vertex() | Edge() | Wire()):
operation = BRepAlgoAPI_Section()
section = bool_op((obj,), (target,), operation)
operation1 = BRepAlgoAPI_Section()
section = bool_op((obj,), (target,), operation1)
result = section
if not section:
operation = BRepAlgoAPI_Common()
result.extend(bool_op((obj,), (target,), operation))
operation2 = BRepAlgoAPI_Common()
result.extend(bool_op((obj,), (target,), operation2))
case _ if issubclass(type(target), Shape):
result = target.intersect(obj)
@ -2940,7 +2943,7 @@ class Edge(Mixin1D[TopoDS_Edge]):
topods_edge = BRepBuilderAPI_MakeEdge(curve.Reversed(), last, first).Edge()
reversed_edge.wrapped = topods_edge
else:
reversed_edge.wrapped = downcast(self.wrapped.Reversed())
reversed_edge.wrapped = TopoDS.Edge_s(self.wrapped.Reversed())
return reversed_edge
def to_axis(self) -> Axis:

4
tests/test_build_line.py
View file

@ -98,14 +98,14 @@ class BuildLineTests(unittest.TestCase):
powerup @ 0,
tangents=(screw % 1, powerup % 0),
)
self.assertAlmostEqual(roller_coaster.wires()[0].length, 678.983628932414, 5)
self.assertAlmostEqual(roller_coaster.wires()[0].length, 678.9785865257071, 5)
def test_bezier(self):
pts = [(0, 0), (20, 20), (40, 0), (0, -40), (-60, 0), (0, 100), (100, 0)]
wts = [1.0, 1.0, 2.0, 3.0, 4.0, 2.0, 1.0]
with BuildLine() as bz:
b1 = Bezier(*pts, weights=wts)
self.assertAlmostEqual(bz.wires()[0].length, 225.86389406824566, 5)
self.assertAlmostEqual(bz.wires()[0].length, 225.98661946375782, 5)
self.assertTrue(isinstance(b1, Edge))
def test_double_tangent_arc(self):