| 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) |
|
|
