File size: 2,618 Bytes
5154c4e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | from __future__ import annotations
from pathlib import Path
import cadquery as cq
OUTPUT_ROOT = Path(r"C:\Users\User\Desktop")
OUTPUT_NAME = "cli_034_pins_inserted_out.step"
CENTERS = [(x, y) for x in (-40.0, -20.0, 0.0, 20.0, 40.0) for y in (-20.0, 20.0)]
TOL = 0.08
def load_solids(path: Path):
if not path.exists() or path.stat().st_size <= 0:
raise FileNotFoundError(path)
solids = cq.importers.importStep(str(path)).solids().vals()
if len(solids) != 11 or any(not s.isValid() for s in solids):
raise ValueError("expected fixture plus ten pins")
return solids
def bbox_tuple(solid):
bb = solid.BoundingBox()
return (bb.xmin, bb.xmax, bb.ymin, bb.ymax, bb.zmin, bb.zmax)
def dims(solid):
bb = solid.BoundingBox()
return (bb.xlen, bb.ylen, bb.zlen)
def close_tuple(actual, expected) -> bool:
return all(abs(float(a) - float(e)) <= TOL for a, e in zip(actual, expected))
def inside(solid, x: float, y: float, z: float) -> bool:
return bool(solid.isInside(cq.Vector(x, y, z), 1e-5))
def classify(solids):
fixture = None
pins = []
for solid in solids:
if close_tuple(dims(solid), (100.0, 70.0, 8.0)):
fixture = solid
elif close_tuple(dims(solid), (4.0, 4.0, 20.0)):
pins.append(solid)
if fixture is None or len(pins) != 10:
raise ValueError("fixture or pins missing")
return fixture, pins
def check_fixture(fixture) -> bool:
if not close_tuple(bbox_tuple(fixture), (-50.0, 50.0, -35.0, 35.0, 0.0, 8.0)):
return False
for cx, cy in CENTERS:
if inside(fixture, cx, cy, 6.0):
return False
if not inside(fixture, cx, cy, 3.5):
return False
return True
def check_pins(pins) -> bool:
expected = [((cx - 2.0, cx + 2.0, cy - 2.0, cy + 2.0, 4.0, 24.0), (cx, cy)) for cx, cy in CENTERS]
unmatched = list(pins)
for bbox, _center in expected:
match = None
for pin in unmatched:
if close_tuple(bbox_tuple(pin), bbox):
match = pin
break
if match is None:
return False
unmatched.remove(match)
return True
def evaluate() -> bool:
fixture, pins = classify(load_solids(OUTPUT_ROOT / OUTPUT_NAME))
return (
check_fixture(fixture)
and check_pins(pins)
and abs(fixture.Volume() - 55445.8) <= 100.0
and abs(sum(pin.Volume() for pin in pins) - 2513.3) <= 80.0
)
if __name__ == "__main__":
try:
print(True if evaluate() else False)
except Exception:
print(False)
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