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548 lines
19 KiB
Python
548 lines
19 KiB
Python
"""
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TODO:
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- add Shell, TwistExtrude, ProjectText, Split, Hole(s),
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- how about translate & rotate?
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"""
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from math import pi, sin, cos, radians, sqrt
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from typing import Union, Iterable, Callable
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from enum import Enum, auto
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import cadquery as cq
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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_faces_count(self) -> int:
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return len(self.pending_faces.values())
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@property
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def pending_edges_count(self) -> int:
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return len(self.pending_edges.values())
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@property
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def pending_solids_count(self) -> int:
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return len(self.pending_solids.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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mode: Mode = Mode.ADDITION,
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workplane: Plane = Plane.named("XY"),
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):
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self.part: Compound = 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.pending_solids: dict[int : list[Solid]] = {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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self.mode = mode
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self.last_vertices = []
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self.last_edges = []
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self.last_faces = []
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self.last_solids = []
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def __enter__(self):
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context_stack.append(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 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: 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 vertices(self, select: Select = Select.ALL) -> list[Vertex]:
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vertex_list = []
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if select == Select.ALL:
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for e in self.part.Edges():
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vertex_list.extend(e.Vertices())
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elif select == Select.LAST:
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vertex_list = self.last_vertices
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return list(set(vertex_list))
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def edges(self, select: Select = Select.ALL) -> list[Edge]:
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if select == Select.ALL:
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edge_list = self.part.Edges()
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elif select == Select.LAST:
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edge_list = self.last_edges
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return edge_list
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def faces(self, select: Select = Select.ALL) -> list[Face]:
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if select == Select.ALL:
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face_list = self.part.Faces()
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elif select == Select.LAST:
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face_list = self.last_edges
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return face_list
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def solids(self, select: Select = Select.ALL) -> list[Solid]:
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if select == Select.ALL:
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solid_list = self.part.Solids()
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elif select == Select.LAST:
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solid_list = self.last_solids
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return solid_list
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@staticmethod
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def get_context() -> "BuildPart":
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return context_stack[-1]
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def add_to_pending(self, *objects: Union[Edge, Face]):
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for obj in objects:
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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 add_to_context(
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self,
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*objects: Union[Edge, Wire, Face, Solid, Compound],
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mode: Mode = Mode.ADDITION,
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):
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if context_stack and mode != Mode.PRIVATE:
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# Sort the provided objects into edges, faces and solids
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new_faces = [obj for obj in objects if isinstance(obj, Face)]
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new_solids = [obj for obj in objects if isinstance(obj, Solid)]
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for compound in filter(lambda o: isinstance(o, Compound), objects):
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new_faces.extend(compound.Faces())
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new_solids.extend(compound.Solids())
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new_edges = [obj for obj in objects if isinstance(obj, Edge)]
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for compound in filter(lambda o: isinstance(o, Wire), objects):
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new_edges.extend(compound.Edges())
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pre_vertices = set() if self.part is None else set(self.part.Vertices())
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pre_edges = set() if self.part is None else set(self.part.Edges())
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pre_faces = set() if self.part is None else set(self.part.Faces())
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pre_solids = set() if self.part is None else set(self.part.Solids())
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if new_solids:
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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()
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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()
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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()
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elif mode == Mode.CONSTRUCTION:
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pass
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else:
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raise ValueError(f"Invalid mode: {mode}")
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post_vertices = set() if self.part is None else set(self.part.Vertices())
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post_edges = set() if self.part is None else set(self.part.Edges())
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post_faces = set() if self.part is None else set(self.part.Faces())
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post_solids = set() if self.part is None else set(self.part.Solids())
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self.last_vertices = list(post_vertices - pre_vertices)
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self.last_edges = list(post_edges - pre_edges)
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self.last_faces = list(post_faces - pre_faces)
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self.last_solids = list(post_solids - pre_solids)
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self.add_to_pending(*new_edges)
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self.add_to_pending(*new_faces)
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class AddPart(Compound):
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def __init__(
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self,
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*objects: Union[Edge, Wire, Face, Solid, Compound],
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mode: Mode = Mode.ADDITION,
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):
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new_faces = [obj for obj in objects if isinstance(obj, Face)]
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new_solids = [obj for obj in objects if isinstance(obj, Solid)]
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for compound in filter(lambda o: isinstance(o, Compound), objects):
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new_faces.extend(compound.Faces())
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new_solids.extend(compound.Solids())
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new_edges = [obj for obj in objects if isinstance(obj, Edge)]
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for compound in filter(lambda o: isinstance(o, Wire), objects):
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new_edges.extend(compound.Edges())
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# Add to pending faces and edges
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BuildPart.get_context().add_to_pending(new_faces)
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BuildPart.get_context().add_to_pending(new_edges)
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# Locate the solids to the predefined positions
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locations = [
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location for location in BuildPart.get_context().locations.values()
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]
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# If no locations have been specified, use the origin
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if not locations:
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locations = [Location(Vector())]
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located_solids = [
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solid.moved(location) for solid in new_solids for location in locations
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]
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BuildPart.get_context().add_to_context(*located_solids, mode=mode)
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super().__init__(Compound.makeCompound(located_solids).wrapped)
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class Extrude(Compound):
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def __init__(
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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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):
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new_solids: list[Solid] = []
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for plane_index, faces in BuildPart.get_context().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,
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BuildPart.get_context().workplanes[plane_index].zDir * until,
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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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BuildPart.get_context().workplanes[plane_index].zDir
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* until
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* -1.0,
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0,
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)
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)
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BuildPart.get_context().pending_faces = {0: []}
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class Revolve(Compound):
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def __init__(
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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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):
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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(BuildPart.get_context().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 BuildPart.get_context().pending_faces[i]:
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new_solids.append(Solid.revolve(face, angle, *axis))
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BuildPart.get_context().pending_faces = {0: []}
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class Loft(Solid):
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def __init__(self, ruled: bool = False, mode: Mode = Mode.ADDITION):
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loft_wires = []
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for i in range(len(BuildPart.get_context().workplanes)):
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for face in BuildPart.get_context().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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BuildPart.get_context().pending_faces = {0: []}
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BuildPart.get_context().add_to_context(new_solid, mode=mode)
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super().__init__(new_solid.wrapped)
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class Sweep(Compound):
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def __init__(
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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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):
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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(BuildPart.get_context().workplanes):
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if not multisection:
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for face in BuildPart.get_context().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 = [
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face.outerWire()
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for face in BuildPart.get_context().pending_faces[i]
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]
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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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BuildPart.get_context().pending_faces = {0: []}
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class FilletPart(Compound):
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def __init__(self, *edges: Edge, radius: float):
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new_part = BuildPart.get_context().part.fillet(radius, list(edges))
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BuildPart.get_context().part = new_part
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super().__init__(new_part.wrapped)
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class ChamferPart(Compound):
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def __init__(self, *edges: Edge, length1: float, length2: float = None):
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new_part = BuildPart.get_context().part.chamfer(length1, length2, list(edges))
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BuildPart.get_context().part = new_part
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super().__init__(new_part.wrapped)
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class PushPointsPart:
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def __init__(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(BuildPart.get_context().workplanes)):
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BuildPart.get_context().locations[i].extend(new_locations)
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print(f"{len(BuildPart.get_context().locations[i])=}")
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class Box(Compound):
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def __init__(
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self,
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length: float,
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width: float,
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height: float,
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mode: Mode = Mode.ADDITION,
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):
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new_solids = []
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for i, workplane in enumerate(len(BuildPart.get_context().workplanes)):
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for location in BuildPart.get_context().locations[i]:
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new_solids.append(
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Solid.makeBox(
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length, width, height, location.position(), workplane.zDir
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)
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)
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class Cone(Compound):
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def __init__(
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self,
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radius1: float,
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radius2: float,
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height: float,
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angle: float = 360,
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mode: Mode = Mode.ADDITION,
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):
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new_solids = []
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for i, workplane in enumerate(len(BuildPart.get_context().workplanes)):
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for location in BuildPart.get_context().locations[i]:
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new_solids.append(
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Solid.makeCone(
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radius1,
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radius2,
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height,
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location.position(),
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workplane.zDir,
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angle,
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)
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)
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class Cylinder(Compound):
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def __init__(
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self,
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radius: float,
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height: float,
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angle: float = 360,
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mode: Mode = Mode.ADDITION,
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):
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new_solids = []
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for i, workplane in enumerate(len(BuildPart.get_context().workplanes)):
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for location in BuildPart.get_context().locations[i]:
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new_solids.append(
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Solid.makeCylinder(
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radius, height, location.position(), workplane.zDir, angle
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)
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)
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class Sphere(Compound):
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def __init__(
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self,
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radius: float,
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angle1: float = 0,
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angle2: float = 90,
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angle3: float = 360,
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mode: Mode = Mode.ADDITION,
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):
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new_solids = []
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for i, workplane in enumerate(len(BuildPart.get_context().workplanes)):
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for location in BuildPart.get_context().locations[i]:
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new_solids.append(
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Solid.makeSphere(
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radius,
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location.position(),
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workplane.zDir,
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angle1,
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angle2,
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angle3,
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)
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)
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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class Torus(Compound):
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def __init__(
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self,
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radius1: float,
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radius2: float,
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angle1: float = 0,
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angle2: float = 360,
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mode: Mode = Mode.ADDITION,
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):
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new_solids = []
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for i, workplane in enumerate(len(BuildPart.get_context().workplanes)):
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for location in BuildPart.get_context().locations[i]:
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new_solids.append(
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Solid.makeTorus(
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radius1,
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radius2,
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location.position(),
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workplane.zDir,
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angle1,
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angle2,
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)
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)
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BuildPart.get_context().add_to_context(*new_solids, mode=mode)
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super().__init__(Compound.makeCompound(new_solids).wrapped)
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|
|
|
|
|
class Wedge(Compound):
|
|
def __init__(
|
|
self,
|
|
dx: float,
|
|
dy: float,
|
|
dz: float,
|
|
xmin: float,
|
|
zmin: float,
|
|
xmax: float,
|
|
zmax: float,
|
|
mode: Mode = Mode.ADDITION,
|
|
):
|
|
|
|
new_solids = []
|
|
for i, workplane in enumerate(len(BuildPart.get_context().workplanes)):
|
|
for location in BuildPart.get_context().locations[i]:
|
|
new_solids.append(
|
|
Solid.makeWedge(
|
|
dx,
|
|
dy,
|
|
dz,
|
|
xmin,
|
|
zmin,
|
|
xmax,
|
|
zmax,
|
|
location.position(),
|
|
workplane.zDir,
|
|
)
|
|
)
|
|
|
|
BuildPart.get_context().add_to_context(*new_solids, mode=mode)
|
|
super().__init__(Compound.makeCompound(new_solids).wrapped)
|