File size: 2,635 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 | 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_026_clearance_fixed_out.step"
REPORT_NAME = "cli_026_interference_report.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) != 2 or any(not solid.isValid() for solid in solids):
raise ValueError("expected housing and sliding_pin 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 close_tuple(actual, expected) -> bool:
return all(abs(float(a) - float(e)) <= TOL for a, e in zip(actual, expected))
def classify(solids):
housing = pin = None
for solid in solids:
d = dims(solid)
if close_tuple(d, (60.0, 60.0, 35.0)):
housing = solid
elif close_tuple(d, (40.0, 18.0, 18.0)):
pin = solid
if housing is None or pin is None:
raise ValueError("part sizes changed or parts missing")
return housing, pin
def inside(solid, x: float, y: float, z: float) -> bool:
return bool(solid.isInside(cq.Vector(x, y, z), 1e-5))
def check_housing_bore(housing) -> bool:
return (
not inside(housing, -5.0, 0.0, 0.0)
and inside(housing, -12.0, 0.0, 0.0)
and inside(housing, -5.0, 10.8, 0.0)
and inside(housing, -5.0, 0.0, 10.8)
)
def check_pin_position(pin) -> bool:
return close_tuple(bbox_tuple(pin), (-9.5, 30.5, -9.0, 9.0, -9.0, 9.0))
def check_report(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()
has_zero_interference = "zero interference" in text or re.search(r"interference\s*=\s*0", text)
has_clearance = "0.5" in text and "clearance" in text
return bool(has_zero_interference and has_clearance)
def evaluate() -> bool:
housing, pin = classify(load_solids(OUTPUT_ROOT / STEP_NAME))
return (
check_housing_bore(housing)
and check_pin_position(pin)
and abs(housing.Volume() - 113433.6) <= 120.0
and abs(pin.Volume() - 10178.8) <= 50.0
and check_report(OUTPUT_ROOT / REPORT_NAME)
)
if __name__ == "__main__":
try:
print(True if evaluate() else False)
except Exception:
print(False)
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