File size: 2,500 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 | 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_027_mass_reduced_out.step"
TEXT_NAME = "cli_027_massprops.txt"
HOLES = [(-30.0, -20.0), (30.0, -20.0), (-30.0, 20.0), (30.0, 20.0)]
TOL = 0.08
DENSITY_G_CM3 = 2.70
def load_single_solid(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) != 1 or not solids[0].isValid():
raise ValueError("expected one valid bracket solid")
return solids[0]
def inside(solid, x: float, y: float, z: float) -> bool:
return bool(solid.isInside(cq.Vector(x, y, z), 1e-5))
def check_bbox(solid) -> bool:
bb = solid.BoundingBox()
actual = (bb.xmin, bb.xmax, bb.ymin, bb.ymax, bb.zmin, bb.zmax)
expected = (-50.0, 50.0, -30.0, 30.0, 0.0, 40.0)
return all(abs(a - e) <= TOL for a, e in zip(actual, expected))
def check_holes_and_rib(solid) -> bool:
for cx, cy in HOLES:
if any(inside(solid, x, y, z) for x, y, z in [(cx, cy, 4), (cx + 2.7, cy, 4), (cx, cy + 2.7, 4)]):
return False
if not all(inside(solid, x, y, z) for x, y, z in [(cx + 3.5, cy, 4), (cx, cy + 3.5, 4)]):
return False
# The centered rib must remain intact and uncut.
return all(inside(solid, x, y, z) for x, y, z in [(-45, 0, 20), (0, 0, 35), (45, 0, 20)])
def mass_g(volume_mm3: float) -> float:
return volume_mm3 / 1000.0 * DENSITY_G_CM3
def check_massprops(path: Path, volume: float) -> bool:
if not path.exists() or path.stat().st_size <= 0:
return False
text = path.read_text(encoding="utf-8", errors="ignore").lower()
numbers = [float(value) for value in re.findall(r"\d+(?:\.\d+)?", text)]
has_volume = any(abs(value - volume) <= 5.0 for value in numbers)
has_mass = any(abs(value - mass_g(volume)) <= 0.2 for value in numbers)
return "mass" in text and "volume" in text and has_volume and has_mass
def evaluate() -> bool:
solid = load_single_solid(OUTPUT_ROOT / STEP_NAME)
volume = solid.Volume()
return (
check_bbox(solid)
and check_holes_and_rib(solid)
and 178.0 <= mass_g(volume) <= 182.0
and check_massprops(OUTPUT_ROOT / TEXT_NAME, volume)
)
if __name__ == "__main__":
try:
print(True if evaluate() else False)
except Exception:
print(False)
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