mirror of
https://github.com/gumyr/build123d.git
synced 2025-12-06 02:30:55 -08:00
493 lines
16 KiB
Python
493 lines
16 KiB
Python
"""
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TODO:
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- add center to arrays
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- make distribute a method of edge and wire
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- ensure offset is a method of edge and wire
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"""
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from math import pi, sin, cos, tan, radians, sqrt
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from typing import Union, Iterable, Sequence, Callable, cast
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from enum import Enum, auto
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import cadquery as cq
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from itertools import product, chain
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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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from build_part import BuildPart
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class BuildSketch:
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def __init__(self, mode: Mode = Mode.ADDITION):
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self.sketch = Compound.makeCompound(())
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self.pending_edges: list[Edge] = []
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self.locations: list[Location] = [Location(Vector())]
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self.mode = mode
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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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context_stack.pop()
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if context_stack:
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if isinstance(context_stack[-1], BuildPart):
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for edge in self.edge_list:
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BuildPart.add_to_context(edge, mode=self.mode)
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def vertices(self) -> list[Vertex]:
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vertex_list = []
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for e in self.sketch.Edges():
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vertex_list.extend(e.Vertices())
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return list(set(vertex_list))
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def edges(self) -> list[Edge]:
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return self.sketch.Edges()
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def faces(self) -> list[Face]:
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return self.sketch.Faces()
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def consolidate_edges(self) -> Wire:
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return Wire.combine(self.pending_edges)[0]
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@staticmethod
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def add_to_context(*objects: Union[Edge, Face], mode: Mode = Mode.ADDITION):
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if "context_stack" in globals() and mode != Mode.PRIVATE:
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if context_stack: # Stack isn't empty
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new_faces = [obj for obj in objects if isinstance(obj, Face)]
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new_edges = [obj for obj in objects if isinstance(obj, Edge)]
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if mode == Mode.ADDITION:
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context_stack[-1].sketch = (
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context_stack[-1].sketch.fuse(*new_faces).clean()
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)
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elif mode == Mode.SUBTRACTION:
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context_stack[-1].sketch = (
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context_stack[-1].sketch.cut(*new_faces).clean()
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)
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elif mode == Mode.INTERSECTION:
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context_stack[-1].sketch = (
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context_stack[-1].sketch.intersect(*new_faces).clean()
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)
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elif mode == Mode.CONSTRUCTION or mode == Mode.PRIVATE:
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pass
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else:
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raise ValueError(f"Invalid mode: {mode}")
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context_stack[-1].pending_edges.extend(new_edges)
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@staticmethod
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def get_context() -> "BuildSketch":
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return context_stack[-1]
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class BuildFace:
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def __init__(self, *edges: Edge, mode: Mode = Mode.ADDITION):
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pending_face = Face.makeFromWires(Wire.combine(edges)[0])
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BuildSketch.get_context().add_to_context(pending_face, mode)
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BuildSketch.get_context().pending_edges = []
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class BuildHull:
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def __init__(self, *edges: Edge, mode: Mode = Mode.ADDITION):
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pending_face = find_hull(edges)
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BuildSketch.get_context().add_to_context(pending_face, mode)
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BuildSketch.get_context().pending_edges = []
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class PushPoints:
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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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BuildSketch.get_context().locations = new_locations
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class RectangularArray:
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def __init__(self, x_spacing: Real, y_spacing: Real, x_count: int, y_count: int):
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if x_count < 1 or y_count < 1:
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raise ValueError(
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f"At least 1 elements required, requested {x_count}, {y_count}"
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)
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new_locations = []
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offset = Vector((x_count - 1) * x_spacing, (y_count - 1) * y_spacing) * 0.5
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for i, j in product(range(x_count), range(y_count)):
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new_locations.append(
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Location(Vector(i * x_spacing, j * y_spacing) - offset)
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)
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BuildSketch.get_context().locations = new_locations
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class PolarArray:
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def __init__(
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self,
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radius: float,
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start_angle: float,
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stop_angle: float,
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count: int,
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rotate: bool = True,
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):
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if count < 1:
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raise ValueError(f"At least 1 elements required, requested {count}")
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x = radius * sin(radians(start_angle))
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y = radius * cos(radians(start_angle))
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if rotate:
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loc = Location(Vector(x, y), Vector(0, 0, 1), -start_angle)
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else:
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loc = Location(Vector(x, y))
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new_locations = [loc]
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angle = (stop_angle - start_angle) / (count - 1)
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for i in range(1, count):
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phi = start_angle + (angle * i)
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x = radius * sin(radians(phi))
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y = radius * cos(radians(phi))
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if rotate:
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loc = Location(Vector(x, y), Vector(0, 0, 1), -phi)
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else:
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loc = Location(Vector(x, y))
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new_locations.append(loc)
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BuildSketch.get_context().locations = new_locations
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class FilletSketch(Compound):
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def __init__(self, *vertices: Vertex, radius: float):
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new_faces = []
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for face in BuildSketch.get_context().sketch.Faces():
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vertices_in_face = filter(lambda v: v in face.Vertices(), vertices)
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if vertices_in_face:
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new_faces.append(face.fillet2D(radius, vertices_in_face))
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else:
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new_faces.append(face)
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new_sketch = Compound.makeCompound(new_faces)
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BuildSketch.get_context().sketch = new_sketch
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super().__init__(new_sketch.wrapped)
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class ChamferSketch(Compound):
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def __init__(self, *vertices: Vertex, length: float):
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new_faces = []
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for face in BuildSketch.get_context().sketch.Faces():
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vertices_in_face = filter(lambda v: v in face.Vertices(), vertices)
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if vertices_in_face:
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new_faces.append(face.chamfer2D(length, vertices_in_face))
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else:
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new_faces.append(face)
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new_sketch = Compound.makeCompound(new_faces)
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BuildSketch.get_context().sketch = new_sketch
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super().__init__(new_sketch.wrapped)
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class Offset(Compound):
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def __init__(
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self, face: Union[Face, Compound], amount: float, mode: Mode = Mode.ADDITION
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):
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perimeter = face.outerWire()
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face = Face.makeFromWires(perimeter.offset2D(perimeter))
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(face.wrapped))
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class Rect(Compound):
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def __init__(
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self,
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width: float,
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height: float,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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):
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face = Face.makePlane(height, width).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class Circle(Compound):
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def __init__(
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self,
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radius: float,
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mode: Mode = Mode.ADDITION,
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):
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face = Face.makeFromWires(Wire.makeCircle(radius, *z_axis))
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class Ellipse(Compound):
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def __init__(
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self,
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x_radius: float,
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y_radius: float,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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):
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face = Face.makeFromWires(
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Wire.makeEllipse(
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x_radius,
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y_radius,
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Vector(),
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Vector(0, 0, 1),
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Vector(1, 0, 0),
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rotation_angle=angle,
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)
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)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class Trapezoid(Compound):
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def __init__(
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self,
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width: float,
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height: float,
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left_side_angle: float,
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right_side_angle: float = None,
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angle: Real = 0,
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mode: Mode = Mode.ADDITION,
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):
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"""
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Construct a trapezoidal face.
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"""
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pts = []
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pts.append(Vector(-width / 2, -height / 2))
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pts.append(Vector(width / 2, -height / 2))
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pts.append(
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Vector(-width / 2 + height / tan(radians(left_side_angle)), height / 2)
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)
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pts.append(
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Vector(
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width / 2
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- height
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/ tan(
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radians(right_side_angle)
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if right_side_angle
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else radians(left_side_angle)
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),
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height / 2,
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)
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)
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pts.append(pts[0])
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face = Face.makeFromWires(Wire.makePolygon(pts)).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class SlotCenterToCenter(Compound):
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def __init__(
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self,
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center_separation: float,
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height: float,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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):
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face = Face.makeFromWires(
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Wire.assembleEdges(
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[
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Edge.makeLine(
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Vector(-center_separation / 2, 0, 0),
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Vector(+center_separation / 2, 0, 0),
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)
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]
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).offset2D(height / 2)
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).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class SlotOverall(Compound):
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def __init__(
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self,
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width: float,
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height: float,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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):
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face = Face.makeFromWires(
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Wire.assembleEdges(
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[
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Edge.makeLine(
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Vector(-width / 2 + height / 2, 0, 0),
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Vector(+width / 2 - height / 2, 0, 0),
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)
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]
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).offset2D(height / 2)
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).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class SlotCenterPoint(Compound):
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def __init__(
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self,
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center: VectorLike,
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point: VectorLike,
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height: float,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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):
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face = Face.makeFromWires(
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Wire.assembleEdges(
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[
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Edge.makeLine(
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Vector(center) - (Vector(point) - Vector(center)),
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Vector(point),
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)
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]
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).offset2D(height / 2)
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).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class SlotArc(Compound):
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def __init__(
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self,
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arc: Union[Edge, Wire],
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height: float,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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):
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arc_wire = arc if isinstance(arc, Wire) else Wire.assembleEdges([arc])
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face = Face.makeFromWires(arc_wire.offset2D(height / 2)).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class RegularPolygon(Compound):
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def regularPolygon(
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self,
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radius: Real,
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side_count: int,
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angle: Real = 0,
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mode: Mode = Mode.ADDITION,
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):
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pts = [
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Vector(
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radius * sin(i * 2 * pi / side_count),
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radius * cos(i * 2 * pi / side_count),
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)
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for i in range(side_count + 1)
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]
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face = Face.makeFromWires(Wire.makePolygon(pts)).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class Polygon(Compound):
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def __init__(
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self,
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*pts: VectorLike,
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angle: Real = 0,
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mode: Mode = Mode.ADDITION,
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):
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poly_pts = [Vector(p) for p in pts]
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face = Face.makeFromWires(Wire.makePolygon(poly_pts)).rotate(*z_axis, angle)
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new_faces = [
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face.moved(location) for location in BuildSketch.get_context().locations
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]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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class Text(Compound):
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def __init__(
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self,
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txt: str,
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fontsize: float,
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font: str = "Arial",
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font_path: str = None,
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font_style: Font_Style = Font_Style.REGULAR,
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halign: Halign = Halign.LEFT,
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valign: Valign = Valign.CENTER,
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path: Union[Edge, Wire] = None,
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position_on_path: float = 0.0,
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angle: float = 0,
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mode: Mode = Mode.ADDITION,
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) -> Compound:
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text_string = Compound.make2DText(
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txt,
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fontsize,
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font,
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font_path,
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Font_Style.legacy(font_style),
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Halign.legacy(halign),
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Valign.legacy(valign),
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position_on_path,
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path,
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).rotate(Vector(), Vector(0, 0, 1), angle)
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new_compounds = [
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text_string.moved(location)
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for location in BuildSketch.get_context().locations
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]
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new_faces = [face for compound in new_compounds for face in compound]
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for face in new_faces:
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BuildSketch.add_to_context(face, mode=mode)
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BuildSketch.get_context().locations = [Location(Vector())]
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super().__init__(Compound.makeCompound(new_faces).wrapped)
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