Eliminated named from Plane & Literal parameters

examples/abstract_operations.py

@@ -2,19 +2,34 @@ import build123d as b
 
 
 class MyRectangle(b.BaseSketchOperation):
-    def __init__(self, width: float, height: float, rotation: float = 0, centered: tuple[bool, bool] = (True, True), mode: b.Mode = b.Mode.ADD):
+    def __init__(
-        face = b.Face.makePlane(height, width)
+        self,
+        width: float,
+        height: float,
+        rotation: float = 0,
+        centered: tuple[bool, bool] = (True, True),
+        mode: b.Mode = b.Mode.ADD,
+    ):
+        face = b.Face.make_plane(height, width)
         super().__init__(face, rotation, centered, mode)
 
+
 class MyHole(b.BaseSketchOperation):
-    def __init__(self, radius: float, rotation: float = 0, centered: tuple[bool, bool] = (True, True), mode: b.Mode = b.Mode.SUBTRACT):
+    def __init__(
-        face = b.Face.makeFromWires(b.Wire.makeCircle(radius, (0, 0, 0), (0, 0, 1)))
+        self,
+        radius: float,
+        rotation: float = 0,
+        centered: tuple[bool, bool] = (True, True),
+        mode: b.Mode = b.Mode.SUBTRACT,
+    ):
+        face = b.Face.make_from_wires(b.Wire.make_circle(radius, (0, 0, 0), (0, 0, 1)))
         super().__init__(face, rotation, centered, mode)
 
+
 with b.BuildSketch() as builder:
     MyRectangle(width=20, height=15, centered=(True, True), rotation=45)
     MyHole(radius=3)
 
 
-if 'show_object' in locals():
+if "show_object" in locals():
-    show_object(builder.sketch)
+    show_object(builder.sketch.wrapped)

examples/build123d_logo.py

@@ -29,12 +29,12 @@ import cadquery as cq
 
 with BuildSketch() as logo_text:
     Text("123d", fontsize=10, valign=Valign.BOTTOM)
-    font_height = (logo_text.vertices() >> Axis.Y).Y
+    font_height = logo_text.vertices().sort_by(Axis.Y)[-1].Y
 
 with BuildSketch() as build_text:
     Text("build", fontsize=5, halign=Halign.CENTER)
     build_bb = BoundingBox(build_text.sketch, mode=Mode.PRIVATE)
-    build_vertices = build_bb.vertices() > Axis.X
+    build_vertices = build_bb.vertices().sort_by(Axis.X)
     build_width = build_vertices[-1].X - build_vertices[0].X
 
 with BuildLine() as one:
@@ -50,11 +50,11 @@ with BuildPart() as three_d:
         with BuildSketch():
             Text("3d", fontsize=10, valign=Valign.BOTTOM)
         Extrude(amount=font_height * 0.3)
-        logo_width = (three_d.vertices() >> Axis.X).X
+        logo_width = three_d.vertices().sort_by(Axis.X)[-1].X
 
 with BuildLine() as arrow_left:
     t1 = TangentArc((0, 0), (1, 0.75), tangent=(1, 0))
-    Mirror(t1, about="XZ")
+    Mirror(t1, about=Plane.XZ)
 
 ext_line_length = font_height * 0.5
 dim_line_length = (logo_width - build_width - 2 * font_height * 0.05) / 2

examples/canadian_flag.py

@@ -25,7 +25,6 @@ license:
     See the License for the specific language governing permissions and
     limitations under the License.
 """
-from cadquery import Vector
 from build123d import *
 
 with BuildSketch() as leaf:
@@ -43,7 +42,7 @@ with BuildSketch() as leaf:
         Spline(l5 @ 1, l6 @ 0, tangents=(l5 % 1, l6 % 0), tangent_scalars=(2, 2))
         l7 = Line((0.0692, 0.7808), (0.0000, 0.9167))
         TangentArc(l6 @ 1, l7 @ 0, tangent=l6 % 1)
-        Mirror(*outline.edges(), about="YZ")
+        Mirror(*outline.edges(), about=Plane.YZ)
     BuildFace(*leaf.pending_edges)
 
 with BuildSketch() as west_field:
@@ -51,7 +50,7 @@ with BuildSketch() as west_field:
         Rectangle(0.5, 1, centered=(False, False))
 
 with BuildSketch() as east_field:
-    Mirror(west_field.sketch, about="YZ")
+    Mirror(west_field.sketch, about=Plane.YZ)
 
 with BuildSketch() as centre_field:
     Rectangle(1, 1, centered=(True, False))

examples/circuit_board.py

@@ -1,3 +1,29 @@
+"""
+
+name: circuit_board.py
+by:   Gumyr
+date: September 1st 2022
+
+desc:
+
+    This example demonstrates placing holes around a part.
+
+license:
+
+    Copyright 2022 Gumyr
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+"""
 from build123d import *
 
 with BuildPart() as pcb:

examples/din_rail.py

@@ -41,7 +41,7 @@ overall_width, top_width, height, thickness, fillet = 35, 27, 7.5, 1, 0.8
 rail_length = 1000
 slot_width, slot_length, slot_pitch = 6.2, 15, 25
 
-with BuildPart("XZ") as rail:
+with BuildPart(Plane.XZ) as rail:
     with BuildSketch() as din:
         Rectangle(overall_width, thickness, centered=(True, False))
         Rectangle(top_width, height, centered=(True, False))

examples/extrude.py

@@ -60,7 +60,7 @@ with BuildPart() as single_multiple:
 with BuildPart() as non_planar:
     Cylinder(10, 20, rotation=(90, 0, 0), centered=(True, False, True))
     Box(10, 10, 10, centered=(True, True, False), mode=Mode.INTERSECT)
-    Extrude(non_planar.part.faces() << Axis.Z, amount=2, mode=Mode.REPLACE)
+    Extrude(non_planar.part.faces().sort_by(Axis.Z)[0], amount=2, mode=Mode.REPLACE)
 
 # Taper Extrude and Extrude to "next" while creating a Cherry MX key cap
 # See: https://www.cherrymx.de/en/dev.html

examples/handle.py

@@ -39,7 +39,7 @@ with BuildPart() as handle:
             tangent_scalars=(1.5, 1.5),
         )
     # Record the center line for display and workplane creation
-    handle_path = handle_center_line.wires()[0]
+    handle_path: Wire = handle_center_line.wires()[0]
 
     # Create the cross sections - added to pending_faces
     for i in range(segment_count + 1):

examples/heat_exchanger.py

@@ -39,7 +39,7 @@ fillet_radius = tube_spacing / 3
 assert tube_extension > fillet_radius
 
 # Generate list of tube locations
-with Workplanes("XY"):
+with Workplanes(Plane.XY):
     tube_locations = [
         l
         for l in HexLocations(
@@ -81,7 +81,7 @@ with BuildPart() as heat_exchanger:
         radius=fillet_radius,
     )
     half_volume_after_fillet = heat_exchanger.part.volume()
-    Mirror(about="XY")
+    Mirror(about=Plane.XY)
 
 fillet_volume = 2 * (half_volume_after_fillet - half_volume_before_fillet)
 print(f"{fillet_volume=}")

examples/holes.py

@@ -47,7 +47,7 @@ with BuildPart() as recessed_counter_sink:
 with BuildPart() as flush_counter_sink:
     with Locations((10, 10)):
         Cylinder(radius=3, height=2)
-        with Workplanes(flush_counter_sink.part.faces() >> Axis.Z):
+        with Workplanes(flush_counter_sink.part.faces().sort_by(Axis.Z)[-1]):
             CounterSinkHole(radius=1, counter_sink_radius=1.5)
 
 if "show_object" in locals():

examples/intersecting_chamfers.py

@@ -16,4 +16,4 @@ with BuildPart() as blocks:
 
 
 if "show_object" in locals():
-    show_object(blocks.part)
+    show_object(blocks.part.wrapped)

examples/lego.py

@@ -66,7 +66,7 @@ with BuildPart() as lego:
             Circle(support_inner_diameter / 2, mode=Mode.SUBTRACT)
     Extrude(amount=base_height - wall_thickness)
     with Workplanes(
-        Plane(origin=(0, 0, (lego.vertices() >> Axis.Z).Z), normal=(0, 0, 1))
+        Plane(origin=(0, 0, lego.vertices().sort_by(Axis.Z)[-1].Z), normal=(0, 0, 1))
     ):
         Box(
             block_length,
@@ -74,7 +74,7 @@ with BuildPart() as lego:
             wall_thickness,
             centered=(True, True, False),
         )
-    with Workplanes(lego.faces() >> Axis.Z):
+    with Workplanes(lego.faces().sort_by(Axis.Z)[-1]):
         with GridLocations(lego_unit_size, lego_unit_size, pip_count, 2):
             Cylinder(
                 radius=pip_diameter / 2, height=pip_height, centered=(True, True, False)

examples/vase.py

@@ -53,7 +53,7 @@ with BuildPart() as vase:
         vase.edges().filter_by_position(Axis.Y, 60, 62).filter_by_type(GeomType.CIRCLE)
     )
     Fillet(*top_edges, radius=0.25)
-    Fillet(vase.edges() << Axis.Y, radius=0.5)
+    Fillet(vase.edges().sort_by(Axis.Y)[0], radius=0.5)
 
 
 if "show_object" in locals():

src/build123d/abstract_operations.py

@@ -1,12 +1,5 @@
-from build123d import (
+from build123d import Face, Mode, BuildSketch, Location, LocationList, Compound, Vector
-    Face,
+
-    Mode,
-    BuildSketch,
-    Location,
-    LocationList,
-    Compound,
-    Vector
-)
 
 class BaseSketchOperation(Compound):
     def __init__(
@@ -14,11 +7,11 @@ class BaseSketchOperation(Compound):
         face: Face,
         rotation: float = 0,
         centered: tuple[bool, bool] = (True, True),
-        mode: Mode = Mode.ADD
+        mode: Mode = Mode.ADD,
     ):
         context: BuildSketch = BuildSketch._get_context()
 
-        bounding_box = face.BoundingBox()
+        bounding_box = face.bounding_box()
         center_offset = Vector(
             0 if centered[0] else bounding_box.xlen / 2,
             0 if centered[1] else bounding_box.ylen / 2,
@@ -34,4 +27,4 @@ class BaseSketchOperation(Compound):
         for face in new_faces:
             context._add_to_context(face, mode=mode)
 
-        Compound.__init__(self, Compound.makeCompound(new_faces).wrapped)
+        Compound.__init__(self, Compound.make_compound(new_faces).wrapped)

src/build123d/build_common.py

@@ -77,7 +77,6 @@ from .direct_api import (
     Shape,
     Vertex,
     Plane,
-    PlaneLike,
     Shell,
     ShapeList,
 )
@@ -282,9 +281,6 @@ def validate_inputs(validating_class, builder_context, objects: Shape = None):
 # #:TypeVar("RotationLike"): Three tuple of angles about x, y, z or Rotation
 # RotationLike = Union[tuple[float, float, float], Rotation]
 
-# #:TypeVar("PlaneLike"): Named Plane (e.g. "XY") or Plane
-# PlaneLike = Union[str, Plane]
-
 
 # class Axis:
 #     """Axis
@@ -714,7 +710,7 @@ class Builder(ABC):
 
     def __init__(
         self,
-        *workplanes: Union[Face, PlaneLike, Location],
+        *workplanes: Union[Face, Plane, Location],
         mode: Mode = Mode.ADD,
     ):
         self.mode = mode
@@ -732,7 +728,7 @@ class Builder(ABC):
         self._reset_tok = self._current.set(self)
         # If there are no workplanes, create a default XY plane
         if not self.workplanes and not WorkplaneList._get_context():
-            self.workplanes_context = Workplanes(Plane.named("XY")).__enter__()
+            self.workplanes_context = Workplanes(Plane.XY).__enter__()
         elif self.workplanes:
             self.workplanes_context = Workplanes(*self.workplanes).__enter__()
 
@@ -1171,13 +1167,13 @@ class Workplanes(WorkplaneList):
     Create workplanes from the given sequence of planes.
 
     Args:
-        objs (Union[Face, PlaneLike, Location]): sequence of faces, planes, or
+        objs (Union[Face, Plane, Location]): sequence of faces, planes, or
             locations to use to define workplanes.
     Raises:
         ValueError: invalid input
     """
 
-    def __init__(self, *objs: Union[Face, PlaneLike, Location]):
+    def __init__(self, *objs: Union[Face, Plane, Location]):
         self.workplanes = []
         for obj in objs:
             if isinstance(obj, Plane):
@@ -1190,8 +1186,6 @@ class Workplanes(WorkplaneList):
                         normal=plane_face.normal_at(plane_face.center()),
                     )
                 )
-            elif isinstance(obj, str):
-                self.workplanes.append(Plane.named(obj))
             elif isinstance(obj, Face):
                 self.workplanes.append(
                     Plane(origin=obj.center(), normal=obj.normal_at(obj.center()))

src/build123d/build_enums.py

@@ -163,3 +163,43 @@ class GeomType(Enum):
 
     def __repr__(self):
         return f"<{self.__class__.__name__}.{self.name}>"
+
+
+class AngularDirection(Enum):
+    """Angular rotation direction"""
+
+    CLOCKWISE = auto()
+    COUNTER_CLOCKWISE = auto()
+
+    def __repr__(self):
+        return f"<{self.__class__.__name__}.{self.name}>"
+
+
+class PositionMode(Enum):
+    """Position along curve mode"""
+
+    LENGTH = auto()
+    PARAMETER = auto()
+
+    def __repr__(self):
+        return f"<{self.__class__.__name__}.{self.name}>"
+
+
+class FrameMethod(Enum):
+    """Moving frame calculation method"""
+
+    FRENET = auto()
+    CORRECTED = auto()
+
+    def __repr__(self):
+        return f"<{self.__class__.__name__}.{self.name}>"
+
+
+class Direction(Enum):
+    """Face direction"""
+
+    ALONG_AXIS = auto()
+    OPPOSITE = auto()
+
+    def __repr__(self):
+        return f"<{self.__class__.__name__}.{self.name}>"

src/build123d/build_generic.py

@@ -39,7 +39,6 @@ from .direct_api import (
     ShapeList,
     Face,
     Plane,
-    PlaneLike,
     Matrix,
     Rotation,
     RotationLike,
@@ -304,14 +303,14 @@ class Mirror(Compound):
 
     Args:
         objects (Union[Edge, Face,Compound]): sequence of edges or faces to mirror
-        about (PlaneLike, optional): reference plane. Defaults to "XZ".
+        about (Plane, optional): reference plane. Defaults to "XZ".
         mode (Mode, optional): combination mode. Defaults to Mode.ADD.
     """
 
     def __init__(
         self,
         *objects: Union[Edge, Wire, Face, Compound],
-        about: PlaneLike = "XZ",
+        about: Plane = Plane.XZ,
         mode: Mode = Mode.ADD,
     ):
         context: Builder = Builder._get_context()
@@ -325,7 +324,6 @@ class Mirror(Compound):
         self.about = about
         self.mode = mode
 
-        mirror_plane = about if isinstance(about, Plane) else Plane.named(about)
         scale_matrix = Matrix(
             [
                 [1.0, 0.0, 00.0, 0.0],
@@ -334,9 +332,9 @@ class Mirror(Compound):
                 [0.0, 0.0, 00.0, 1.0],
             ]
         )
-        localized = [mirror_plane.to_local_coords(o) for o in objects]
+        localized = [about.to_local_coords(o) for o in objects]
         local_mirrored = [o.transform_geometry(scale_matrix) for o in localized]
-        mirrored = [mirror_plane.from_local_coords(o) for o in local_mirrored]
+        mirrored = [about.from_local_coords(o) for o in local_mirrored]
 
         context._add_to_context(*mirrored, mode=mode)
         super().__init__(Compound.make_compound(mirrored).wrapped)
@@ -404,16 +402,12 @@ class Offset(Compound):
         new_faces = []
         for face in faces:
             new_faces.append(
-                Face.make_from_wires(
+                Face.make_from_wires(face.outer_wire().offset_2d(amount, kind=kind)[0])
-                    face.outer_wire().offset_2d(amount, kind=kind.name.lower())[0]
-                )
             )
         if edges:
             if len(edges) == 1:
                 raise ValueError("At least two edges are required")
-            new_wires = Wire.assemble_edges(edges).offset_2d(
+            new_wires = Wire.assemble_edges(edges).offset_2d(amount, kind=kind)
-                amount, kind=kind.name.lower()
-            )
         else:
             new_wires = []
 
@@ -427,9 +421,7 @@ class Offset(Compound):
             else:
                 openings_in_this_solid = []
             new_solids.append(
-                solid.shell(
+                solid.shell(openings_in_this_solid, amount, kind=kind).fix()
-                    openings_in_this_solid, amount, kind=kind.name.lower()
-                ).fix()
             )
 
         new_objects = new_wires + new_faces + new_solids
@@ -508,7 +500,7 @@ class Split(Compound):
 
     Args:
         objects (Union[Edge, Wire, Face, Solid]), objects to split
-        bisect_by (PlaneLike, optional): plane to segment part. Defaults to Plane.named("XZ").
+        bisect_by (Plane, optional): plane to segment part. Defaults to Plane.XZ.
         keep (Keep, optional): selector for which segment to keep. Defaults to Keep.TOP.
         mode (Mode, optional): combination mode. Defaults to Mode.INTERSECT.
     """
@@ -516,7 +508,7 @@ class Split(Compound):
     def __init__(
         self,
         *objects: Union[Edge, Wire, Face, Solid],
-        bisect_by: PlaneLike = Plane.named("XZ"),
+        bisect_by: Plane = Plane.XZ,
         keep: Keep = Keep.TOP,
         mode: Mode = Mode.REPLACE,
     ):
@@ -526,7 +518,7 @@ class Split(Compound):
                 if keep == Keep.TOP
                 else Vector(-max_size, -max_size, -2 * max_size)
             )
-            return bisect_plane.from_local_coords(
+            return bisect_by.from_local_coords(
                 Solid.make_box(2 * max_size, 2 * max_size, 2 * max_size).moved(
                     Location(cutter_center)
                 )
@@ -539,10 +531,6 @@ class Split(Compound):
         if not objects:
             objects = [context._obj]
 
-        bisect_plane = (
-            bisect_by if isinstance(bisect_by, Plane) else Plane.named(bisect_by)
-        )
-
         self.objects = objects
         self.bisect_by = bisect_by
         self.keep = keep

src/build123d/build_line.py

@@ -39,7 +39,6 @@ from .direct_api import (
     ShapeList,
     Face,
     Plane,
-    PlaneLike,
 )
 from .build_common import Builder, logger, validate_inputs
 
@@ -63,13 +62,12 @@ class BuildLine(Builder):
 
     def __init__(
         self,
-        *workplanes: Union[Face, PlaneLike, Location],
+        *workplanes: Union[Face, Plane, Location],
         mode: Mode = Mode.ADD,
     ):
         self.initial_planes = workplanes
         self.mode = mode
         self.line: Compound = None
-        # self.locations: list[Location] = [Location(Vector())]
         super().__init__(*workplanes, mode=mode)
 
     def faces(self):

src/build123d/build_part.py

@@ -47,7 +47,6 @@ from .direct_api import (
     Location,
     Face,
     Plane,
-    PlaneLike,
     Axis,
     Rotation,
     RotationLike,
@@ -69,7 +68,7 @@ class BuildPart(Builder):
     Create 3D parts (objects with the property of volume) from sketches or 3D objects.
 
     Args:
-        workplane (Plane, optional): initial plane to work on. Defaults to Plane.named("XY").
+        workplane (Plane, optional): initial plane to work on. Defaults to Plane.XY.
         mode (Mode, optional): combination mode. Defaults to Mode.ADD.
 
     """
@@ -89,7 +88,7 @@ class BuildPart(Builder):
 
     def __init__(
         self,
-        *workplanes: Union[Face, PlaneLike, Location],
+        *workplanes: Union[Face, Plane, Location],
         mode: Mode = Mode.ADD,
     ):
         self.part: Compound = None
@@ -701,7 +700,7 @@ class Section(Compound):
 
     def __init__(
         self,
-        *section_by: PlaneLike,
+        *section_by: Plane,
         height: float = 0.0,
         mode: Mode = Mode.INTERSECT,
     ):
@@ -720,13 +719,6 @@ class Section(Compound):
         section_planes = (
             section_planes if isinstance(section_planes, Iterable) else [section_planes]
         )
-        # If the user provided named planes, convert
-        section_planes = [
-            section_plane
-            if isinstance(section_plane, Plane)
-            else Plane.named(section_plane)
-            for section_plane in section_planes
-        ]
         planes = [
             Face.make_plane(
                 2 * max_size,
@@ -815,7 +807,7 @@ class Sweep(Compound):
                         True,  # make solid
                         is_frenet,
                         binormal_mode,
-                        transition.name.lower(),
+                        transition,
                     ).moved(location)
             new_solids.append(new_solid)
 

src/build123d/build_sketch.py

@@ -53,7 +53,6 @@ from .direct_api import (
     ShapeList,
     Face,
     Plane,
-    PlaneLike,
 )
 from .build_common import (
     Builder,
@@ -83,7 +82,7 @@ class BuildSketch(Builder):
 
     def __init__(
         self,
-        *workplanes: Union[Face, PlaneLike, Location],
+        *workplanes: Union[Face, Plane, Location],
         mode: Mode = Mode.ADD,
     ):
         self.workplanes = workplanes
@@ -726,9 +725,9 @@ class Text(Compound):
             fontsize=fontsize,
             font=font,
             font_path=font_path,
-            font_style=font_style.name.lower(),
+            font_style=font_style,
-            halign=halign.name.lower(),
+            halign=halign,
-            valign=valign.name.lower(),
+            valign=valign,
             position_on_path=position_on_path,
             text_path=path,
         ).rotate(Vector(), Vector(0, 0, 1), rotation)

tests/build_common_tests.py

@@ -284,7 +284,7 @@ class TestBuilder(unittest.TestCase):
 
 class TestWorkplanes(unittest.TestCase):
     def test_named(self):
-        with Workplanes("XY") as test:
+        with Workplanes(Plane.XY) as test:
             self.assertTupleAlmostEquals(
                 test.workplanes[0].origin.to_tuple(), (0, 0, 0), 5
             )
@@ -293,7 +293,7 @@ class TestWorkplanes(unittest.TestCase):
             )
 
     def test_locations(self):
-        with Workplanes("XY"):
+        with Workplanes(Plane.XY):
             with Locations((0, 0, 1), (0, 0, 2)) as l:
                 with Workplanes(*l.locations) as w:
                     origins = [p.origin.to_tuple() for p in w.workplanes]

tests/build_generic_tests.py

@@ -277,7 +277,7 @@ class MirrorTests(unittest.TestCase):
         edge = Edge.make_line((1, 0, 0), (2, 0, 0))
         wire = Wire.make_circle(1, center=(5, 0, 0), normal=(0, 0, 1))
         with BuildLine() as test:
-            Mirror(edge, wire, about="YZ")
+            Mirror(edge, wire, about=Plane.YZ)
         self.assertEqual(
             len(test.edges().filter_by_position(Axis.X, minimum=0, maximum=10)), 0
         )
@@ -286,7 +286,7 @@ class MirrorTests(unittest.TestCase):
         )
         with BuildLine() as test:
             Line((1, 0), (2, 0))
-            Mirror(about="YZ")
+            Mirror(about=Plane.YZ)
         self.assertEqual(len(test.edges()), 2)
 
     def test_mirror_sketch(self):
@@ -300,7 +300,7 @@ class MirrorTests(unittest.TestCase):
             ]
         )
         with BuildSketch() as test:
-            Mirror(edge, wire, face, compound, about="YZ")
+            Mirror(edge, wire, face, compound, about=Plane.YZ)
         self.assertEqual(
             len(test.pending_edges.filter_by_position(Axis.X, minimum=0, maximum=10)), 0
         )
@@ -318,7 +318,7 @@ class MirrorTests(unittest.TestCase):
     def test_mirror_part(self):
         cone = Solid.make_cone(2, 1, 2, pnt=(5, 4, 0))
         with BuildPart() as test:
-            Mirror(cone, about="YZ")
+            Mirror(cone, about=Plane.YZ)
         self.assertEqual(
             len(test.solids().filter_by_position(Axis.X, minimum=-10, maximum=0)), 1
         )

tests/build_line_tests.py

@@ -75,7 +75,7 @@ class BuildLineTests(unittest.TestCase):
                 )
                 l7 = Line((0.0692, 0.7808), (0.0000, 0.9167))
                 TangentArc(l6 @ 1, l7 @ 0, tangent=l6 % 1)
-                Mirror(*outline.edges(), about="YZ")
+                Mirror(*outline.edges(), about=Plane.YZ)
             BuildFace(*leaf.pending_edges)
         self.assertAlmostEqual(leaf.sketch.area(), 0.2741600685288115, 5)
 

tests/build_part_tests.py

@@ -142,7 +142,7 @@ class BuildPartTests(unittest.TestCase):
                 self.assertEqual(len(LocationList._get_context().locations), 5)
 
     def test_named_plane(self):
-        with BuildPart("YZ") as test:
+        with BuildPart(Plane.YZ) as test:
             self.assertTupleAlmostEquals(
                 WorkplaneList._get_context().workplanes[0].z_dir.to_tuple(),
                 (1, 0, 0),
@@ -340,7 +340,7 @@ class TestSection(unittest.TestCase):
     def test_custom_plane(self):
         with BuildPart() as test:
             Sphere(10)
-            Section("XZ")
+            Section(Plane.XZ)
         self.assertAlmostEqual(
             test.faces().filter_by_axis(Axis.Y)[-1].area(), 100 * pi, 5
         )
@@ -362,7 +362,7 @@ class TestSplit(unittest.TestCase):
     def test_custom_plane(self):
         with BuildPart() as test:
             Sphere(10)
-            Split(bisect_by="YZ", keep=Keep.TOP)
+            Split(bisect_by=Plane.YZ, keep=Keep.TOP)
         self.assertAlmostEqual(test.part.volume(), (2 / 3) * 1000 * pi, 5)