File size: 2,751 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 | from __future__ import annotations
import re
from pathlib import Path
import cadquery as cq
OUTPUT_ROOT = Path(r"C:\Users\User\Desktop")
STEP_NAME = "cli_021_stack_assembly_out.step"
TEXT_NAME = "cli_021_massprops.txt"
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) != 3 or any(not solid.isValid() for solid in solids):
raise ValueError("expected three valid independent solids")
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 center_xy(solid):
bb = solid.BoundingBox()
return ((bb.xmin + bb.xmax) / 2.0, (bb.ymin + bb.ymax) / 2.0)
def close_tuple(actual, expected, tol: float = TOL) -> bool:
return all(abs(float(a) - float(e)) <= tol for a, e in zip(actual, expected))
def classify(solids):
plates = []
spacer = None
for solid in solids:
if close_tuple(dims(solid), (120.0, 80.0, 6.0)):
plates.append(solid)
elif close_tuple(dims(solid), (20.0, 20.0, 30.0)):
spacer = solid
if len(plates) != 2 or spacer is None:
raise ValueError("part dimensions do not match instruction")
plates.sort(key=lambda s: s.BoundingBox().zmin)
return plates[0], spacer, plates[1]
def check_stack(solids) -> bool:
base, spacer, top = classify(solids)
return (
close_tuple(center_xy(base), (0.0, 0.0))
and close_tuple(center_xy(spacer), (0.0, 0.0))
and close_tuple(center_xy(top), (0.0, 0.0))
and close_tuple(bbox_tuple(base), (-60.0, 60.0, -40.0, 40.0, 0.0, 6.0))
and close_tuple(bbox_tuple(spacer), (-10.0, 10.0, -10.0, 10.0, 6.0, 36.0))
and close_tuple(bbox_tuple(top), (-60.0, 60.0, -40.0, 40.0, 36.0, 42.0))
)
def check_massprops(path: Path) -> bool:
if not path.exists() or path.stat().st_size <= 0:
return False
text = path.read_text(encoding="utf-8", errors="ignore").lower()
if "volume" not in text and "mass" not in text:
return False
match = re.search(r"127200(?:\\.0+)?", text)
return bool(match)
def evaluate() -> bool:
solids = load_solids(OUTPUT_ROOT / STEP_NAME)
total_volume = sum(solid.Volume() for solid in solids)
return (
check_stack(solids)
and abs(total_volume - 127200.0) <= 80.0
and check_massprops(OUTPUT_ROOT / TEXT_NAME)
)
if __name__ == "__main__":
try:
print(True if evaluate() else False)
except Exception:
print(False)
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