mirror of
https://github.com/gumyr/build123d.git
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378 lines
13 KiB
Python
378 lines
13 KiB
Python
from math import pi, sin, cos, radians, sqrt
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from typing import Union, Iterable, Sequence, Callable
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from enum import Enum, auto
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import cadquery as cq
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from cadquery.hull import find_hull
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from cadquery import (
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Edge,
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Face,
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Wire,
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Vector,
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Shape,
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Location,
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Vertex,
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Compound,
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Solid,
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Plane,
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)
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from cadquery.occ_impl.shapes import VectorLike, Real
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import cq_warehouse.extensions
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from build123d_common import *
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class BuildPart:
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@property
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def workplane_count(self) -> int:
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return len(self.workplanes)
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@property
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def pending_face_count(self) -> int:
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return len(self.pending_faces.values())
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@property
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def pending_edge_count(self) -> int:
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return len(self.pending_edges.values())
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@property
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def pending_location_count(self) -> int:
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return len(self.locations.values())
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def __init__(
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self,
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parent: BuildAssembly = None,
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mode: Mode = Mode.ADDITION,
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workplane: Plane = Plane.named("XY"),
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):
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self.parent = parent
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self.part: Solid = None
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self.workplanes: list[Plane] = [workplane]
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self.pending_faces: dict[int : list[Face]] = {0: []}
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self.pending_edges: dict[int : list[Edge]] = {0: []}
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self.locations: dict[int : list[Location]] = {0: []}
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self.last_operation: dict[CqObject : list[Shape]] = {}
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def __enter__(self):
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return self
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def __exit__(self, exception_type, exception_value, traceback):
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pass
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def push_points(self, *pts: Union[VectorLike, Location]):
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new_locations = [
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Location(Vector(pt)) if not isinstance(pt, Location) else pt for pt in pts
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]
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for i in range(len(self.workplanes)):
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self.locations[i].extend(new_locations)
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print(f"{len(self.locations[i])=}")
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return new_locations[0] if len(new_locations) == 1 else new_locations
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def add(self, obj: Union[Edge, Face], mode: Mode = Mode.ADDITION):
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for i, workplane in enumerate(self.workplanes):
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# If no locations have been defined, add one to the workplane center
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if not self.locations[i]:
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self.locations[i].append(Location(Vector()))
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for loc in self.locations[i]:
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localized_obj = workplane.fromLocalCoords(obj.moved(loc))
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if i in self.pending_faces:
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if isinstance(obj, Face):
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self.pending_faces[i].append(localized_obj)
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else:
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self.pending_edges[i].append(localized_obj)
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else:
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if isinstance(obj, Face):
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self.pending_faces[i] = [localized_obj]
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else:
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self.pending_edges[i] = [localized_obj]
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def workplane(self, workplane: Plane = Plane.named("XY"), replace=True):
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if replace:
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self.workplanes = [workplane]
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else:
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self.workplanes.append(workplane)
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self.locations[len(self.workplanes) - 1] = [Location()]
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return workplane
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def faces_to_workplanes(self, *faces: Sequence[Face], replace=False):
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new_planes = []
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for face in faces:
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new_plane = Plane(origin=face.Center(), normal=face.normalAt(face.Center()))
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new_planes.append(new_plane)
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self.workplane(new_plane, replace)
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return new_planes[0] if len(new_planes) == 1 else new_planes
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def edges(self, sort_by: SortBy = SortBy.NONE, reverse: bool = False) -> list[Edge]:
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if sort_by == SortBy.NONE:
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edges = self.part.Edges()
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elif sort_by == SortBy.X:
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edges = sorted(
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self.part.Edges(),
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key=lambda obj: obj.Center().x,
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reverse=reverse,
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)
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elif sort_by == SortBy.Y:
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edges = sorted(
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self.part.Edges(),
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key=lambda obj: obj.Center().y,
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reverse=reverse,
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)
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elif sort_by == SortBy.Z:
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edges = sorted(
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self.part.Edges(),
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key=lambda obj: obj.Center().z,
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reverse=reverse,
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)
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elif sort_by == SortBy.LENGTH:
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edges = sorted(
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self.part.Edges(),
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key=lambda obj: obj.Length(),
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reverse=reverse,
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)
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elif sort_by == SortBy.RADIUS:
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edges = sorted(
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self.part.Edges(),
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key=lambda obj: obj.radius(),
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reverse=reverse,
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)
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elif sort_by == SortBy.DISTANCE:
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edges = sorted(
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self.part.Edges(),
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key=lambda obj: obj.Center().Length,
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reverse=reverse,
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)
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else:
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raise ValueError(f"Unable to sort edges by {sort_by}")
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return edges
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def faces(self, sort_by: SortBy = SortBy.NONE, reverse: bool = False) -> list[Face]:
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if sort_by == SortBy.NONE:
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faces = self.part.Faces()
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elif sort_by == SortBy.X:
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faces = sorted(
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self.part.Faces(),
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key=lambda obj: obj.Center().x,
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reverse=reverse,
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)
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elif sort_by == SortBy.Y:
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faces = sorted(
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self.part.Faces(),
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key=lambda obj: obj.Center().y,
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reverse=reverse,
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)
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elif sort_by == SortBy.Z:
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faces = sorted(
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self.part.Faces(),
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key=lambda obj: obj.Center().z,
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reverse=reverse,
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)
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elif sort_by == SortBy.AREA:
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faces = sorted(
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self.part.Faces(), key=lambda obj: obj.Area(), reverse=reverse
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)
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elif sort_by == SortBy.DISTANCE:
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faces = sorted(
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self.part.Faces(),
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key=lambda obj: obj.Center().Length,
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reverse=reverse,
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)
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else:
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raise ValueError(f"Unable to sort edges by {sort_by}")
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return faces
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def vertices(
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self, sort_by: SortBy = SortBy.NONE, reverse: bool = False
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) -> list[Vertex]:
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if sort_by == SortBy.NONE:
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vertices = self.part.Vertices()
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elif sort_by == SortBy.X:
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vertices = sorted(
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self.part.Vertices(),
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key=lambda obj: obj.Center().x,
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reverse=reverse,
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)
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elif sort_by == SortBy.Y:
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vertices = sorted(
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self.part.Vertices(),
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key=lambda obj: obj.Center().y,
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reverse=reverse,
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)
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elif sort_by == SortBy.Z:
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vertices = sorted(
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self.part.Vertices(),
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key=lambda obj: obj.Center().z,
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reverse=reverse,
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)
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elif sort_by == SortBy.DISTANCE:
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vertices = sorted(
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self.part.Vertices(),
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key=lambda obj: obj.Center().Length,
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reverse=reverse,
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)
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else:
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raise ValueError(f"Unable to sort edges by {sort_by}")
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return vertices
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def place_solids(
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self,
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new_solids: list[Solid, Compound],
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mode: Mode = Mode.ADDITION,
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clean: bool = True,
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):
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Solid.clean_op = Solid.clean if clean else Solid.null
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Compound.clean_op = Compound.clean if clean else Compound.null
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before_vertices = set() if self.part is None else set(self.part.Vertices())
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before_edges = set() if self.part is None else set(self.part.Edges())
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before_faces = set() if self.part is None else set(self.part.Faces())
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if mode == Mode.ADDITION:
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if self.part is None:
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if len(new_solids) == 1:
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self.part = new_solids[0]
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else:
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self.part = new_solids.pop().fuse(*new_solids)
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else:
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self.part = self.part.fuse(*new_solids).clean_op()
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elif mode == Mode.SUBTRACTION:
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if self.part is None:
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raise ValueError("Nothing to subtract from")
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self.part = self.part.cut(*new_solids).clean_op()
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elif mode == Mode.INTERSECTION:
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if self.part is None:
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raise ValueError("Nothing to intersect with")
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self.part = self.part.intersect(*new_solids).clean_op()
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self.last_operation[CqObject.VERTEX] = list(
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set(self.part.Vertices()) - before_vertices
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)
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self.last_operation[CqObject.EDGE] = list(set(self.part.Edges()) - before_edges)
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self.last_operation[CqObject.FACE] = list(set(self.part.Faces()) - before_faces)
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def extrude(
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self,
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until: Union[float, Until, Face],
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both: bool = False,
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taper: float = None,
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mode: Mode = Mode.ADDITION,
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clean: bool = True,
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):
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new_solids: list[Solid] = []
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for plane_index, faces in self.pending_faces.items():
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for face in faces:
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new_solids.append(
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Solid.extrudeLinear(
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face, self.workplanes[plane_index].zDir * until, 0
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)
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)
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if both:
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new_solids.append(
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Solid.extrudeLinear(
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face,
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self.workplanes[plane_index].zDir * until * -1.0,
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0,
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)
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)
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self.place_solids(new_solids, mode, clean)
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return new_solids[0] if len(new_solids) == 1 else new_solids
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def revolve(
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self,
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angle_degrees: float = 360.0,
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axis_start: VectorLike = None,
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axis_end: VectorLike = None,
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mode: Mode = Mode.ADDITION,
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clean: bool = True,
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):
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# Make sure we account for users specifying angles larger than 360 degrees, and
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# for OCCT not assuming that a 0 degree revolve means a 360 degree revolve
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angle = angle_degrees % 360.0
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angle = 360.0 if angle == 0 else angle
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new_solids = []
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for i, workplane in enumerate(self.workplanes):
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axis = []
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if axis_start is None:
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axis.append(workplane.fromLocalCoords(Vector(0, 0, 0)))
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else:
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axis.append(workplane.fromLocalCoords(Vector(axis_start)))
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if axis_end is None:
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axis.append(workplane.fromLocalCoords(Vector(0, 1, 0)))
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else:
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axis.append(workplane.fromLocalCoords(Vector(axis_end)))
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print(f"Revolve: {axis=}")
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for face in self.pending_faces[i]:
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new_solids.append(Solid.revolve(face, angle, *axis))
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self.place_solids(new_solids, mode, clean)
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return new_solids[0] if len(new_solids) == 1 else new_solids
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def loft(self, ruled: bool = False, mode: Mode = Mode.ADDITION, clean: bool = True):
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loft_wires = []
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for i in range(len(self.workplanes)):
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for face in self.pending_faces[i]:
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loft_wires.append(face.outerWire())
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new_solid = Solid.makeLoft(loft_wires, ruled)
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self.place_solids([new_solid], mode, clean)
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return new_solid
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def sweep(
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self,
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path: Union[Edge, Wire],
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multisection: bool = False,
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make_solid: bool = True,
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is_frenet: bool = False,
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transition: Transition = Transition.RIGHT,
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normal: VectorLike = None,
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binormal: Union[Edge, Wire] = None,
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mode: Mode = Mode.ADDITION,
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clean: bool = True,
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):
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path_wire = Wire.assembleEdges([path]) if isinstance(path, Edge) else path
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if binormal is None:
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binormal_mode = Vector(normal)
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elif isinstance(binormal, Edge):
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binormal_mode = Wire.assembleEdges([binormal])
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else:
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binormal_mode = binormal
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new_solids = []
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for i, workplane in enumerate(self.workplanes):
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if not multisection:
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for face in self.pending_faces[i]:
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new_solids.append(
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Solid.sweep(
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face,
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path_wire,
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make_solid,
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is_frenet,
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binormal_mode,
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transition,
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)
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)
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else:
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sections = [face.outerWire() for face in self.pending_faces[i]]
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new_solids.append(
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Solid.sweep_multi(
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sections, path_wire, make_solid, is_frenet, binormal_mode
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)
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)
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self.place_solids(new_solids, mode, clean)
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return new_solids
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def fillet(self, *edges: Sequence[Edge], radius: float):
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self.part = self.part.fillet(radius, [e for e in edges])
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def chamfer(self, *edges: Sequence[Edge], length1: float, length2: float = None):
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self.part = self.part.chamfer(length1, length2, list(edges))
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