Refactor test_sweeps.py: remove _is_swept_shape, restructure test directories, update test fixtures, and adjust assertions for geometry validation. Extend sweep_along_curve constructor to support fixed reference direction.

2026-08-11 10:06:47 +00:00 · 2025-08-27 19:37:47 +02:00
parent 9dd7b488d6
commit 1cd32be2fc
7 changed files with 168 additions and 268 deletions
@@ -1,119 +0,0 @@
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@@ -1,235 +0,0 @@
-import pathlib
-from typing import List, Sequence, Tuple
-
-import ifcopenshell
-import pytest
-from OCC.Core.TopoDS import TopoDS_Shape, TopoDS_Compound
-
-
-def _bbox_from_vertices(verts: List[Tuple[float, float, float]]):
-    if not verts:
-        return (0, 0, 0), (0, 0, 0)
-    xs = [v[0] for v in verts]
-    ys = [v[1] for v in verts]
-    zs = [v[2] for v in verts]
-    mn = (min(xs), min(ys), min(zs))
-    mx = (max(xs), max(ys), max(zs))
-    return mn, mx
-
-
-def _size_from_bbox(mn, mx):
-    return (mx[0] - mn[0], mx[1] - mn[1], mx[2] - mn[2])
-
-
-def _triples(flat: Sequence[float]) -> List[Tuple[float, float, float]]:
-    return [(float(flat[i]), float(flat[i + 1]), float(flat[i + 2])) for i in range(0, len(flat), 3)]
-
-
-def _is_swept_shape(occ_shape: TopoDS_Shape) -> bool:
-    """Analyze if the given OpenCASCADE shape represents a swept shape using topology exploration."""
-    try:
-        from OCC.Core.TopExp import TopExp_Explorer
-        from OCC.Core.TopAbs import TopAbs_FACE, TopAbs_EDGE, TopAbs_WIRE
-        from OCC.Core.BRep_Tool import BRep_Tool
-        from OCC.Core.GeomLProp_SLProps import GeomLProp_SLProps
-        from OCC.Core.BRepAdaptor_Surface import BRepAdaptor_Surface
-        from OCC.Core.GeomAbs import (
-            GeomAbs_Cylinder,
-            GeomAbs_Plane,
-            GeomAbs_SurfaceOfExtrusion,
-            GeomAbs_SurfaceOfRevolution,
-        )
-        from OCC.Core.gp import gp_Vec
-        import math
-    except ImportError as e:
-        raise RuntimeError("pythonocc-core not available for topology analysis") from e
-
-    if occ_shape.IsNull():
-        return False
-
-    # Explore faces to look for swept surface characteristics
-    face_explorer = TopExp_Explorer(occ_shape, TopAbs_FACE)
-    swept_indicators = 0
-    total_faces = 0
-
-    while face_explorer.More():
-        face = face_explorer.Current()
-        total_faces += 1
-
-        # Get the surface adaptor for this face
-        surface_adaptor = BRepAdaptor_Surface(face)
-        surface_type = surface_adaptor.GetType()
-
-        # Check for surface types that indicate swept geometry
-        if surface_type in [GeomAbs_Cylinder, GeomAbs_SurfaceOfExtrusion, GeomAbs_SurfaceOfRevolution]:
-            swept_indicators += 1
-
-        # For planar surfaces, check if they form a pattern consistent with swept geometry
-        elif surface_type == GeomAbs_Plane:
-            # Analyze if planar faces are arranged in a swept pattern
-            # This is a simplified check - could be enhanced further
-            if _has_parallel_opposite_faces(occ_shape, face):
-                swept_indicators += 0.5  # Partial indicator
-
-        face_explorer.Next()
-
-    # Additional check: analyze edge patterns for swept characteristics
-    edge_analysis = _analyze_edge_patterns(occ_shape)
-
-    # Determine if this is likely a swept shape
-    # If more than 50% of faces show swept characteristics, or we have strong edge patterns
-    swept_ratio = swept_indicators / max(total_faces, 1)
-    is_swept = swept_ratio > 0.5 or edge_analysis
-
-    if is_swept:
-        print(f"Swept shape analysis: {swept_indicators}/{total_faces} faces show swept characteristics")
-        if edge_analysis:
-            print("Edge pattern analysis also indicates swept geometry")
-
-    return is_swept
-
-
-def _has_parallel_opposite_faces(shape: TopoDS_Shape, reference_face) -> bool:
-    """Check if the shape has faces parallel to the reference face (indicating extrusion)."""
-    try:
-        from OCC.Core.TopExp import TopExp_Explorer
-        from OCC.Core.TopAbs import TopAbs_FACE
-        from OCC.Core.BRepAdaptor_Surface import BRepAdaptor_Surface
-        from OCC.Core.GeomAbs import GeomAbs_Plane
-        from OCC.Core.gp import gp_Vec
-        import math
-
-        ref_adaptor = BRepAdaptor_Surface(reference_face)
-        if ref_adaptor.GetType() != GeomAbs_Plane:
-            return False
-
-        ref_normal = ref_adaptor.Plane().Axis().Direction()
-
-        face_explorer = TopExp_Explorer(shape, TopAbs_FACE)
-        while face_explorer.More():
-            face = face_explorer.Current()
-            if not face.IsSame(reference_face):
-                face_adaptor = BRepAdaptor_Surface(face)
-                if face_adaptor.GetType() == GeomAbs_Plane:
-                    face_normal = face_adaptor.Plane().Axis().Direction()
-                    # Check if normals are parallel (dot product close to ±1)
-                    dot_product = abs(ref_normal.Dot(face_normal))
-                    if dot_product > 0.99:  # Very close to parallel
-                        return True
-            face_explorer.Next()
-        return False
-    except:
-        return False
-
-
-def load_ifc_occ_shape(ifc_path: str) -> TopoDS_Shape:
-    try:
-        import ifcopenshell.geom as geom
-    except Exception as e:
-        raise RuntimeError("ifcopenshell.geom not available: cannot validate IFC geometry") from e
-
-    settings = geom.settings()
-    settings.set(settings.USE_WORLD_COORDS, True)
-    settings.set("use-python-opencascade", True)
-
-    # Open the IFC file
-    f = ifcopenshell.open(ifc_path)
-
-    # Find the first representable product (prefer IfcBuildingElementProxy, then any product with representation)
-    products = f.by_type("IfcProduct")
-    target = None
-    for p in products:
-        if p.is_a("IfcBuildingElementProxy") and getattr(p, "Representation", None):
-            target = p
-            break
-    if target is None:
-        for p in products:
-            if getattr(p, "Representation", None):
-                target = p
-                break
-    if target is None:
-        raise RuntimeError("No representable product found in IFC for shape extraction")
-
-    # Create the shape using ifcopenshell.geom with opencascade geometry library
-    shape_result = geom.create_shape(settings, target, geometry_library="opencascade")
-
-    # Extract the OpenCASCADE TopoDS_Shape from the result
-    # The create_shape function returns an object with an occ_shape attribute when using opencascade
-    if hasattr(shape_result, "geometry") and shape_result.geometry:
-        occ_shape = shape_result.geometry
-        if isinstance(occ_shape, TopoDS_Compound):
-            json_data = occ_shape.DumpJson()
-            print(json_data)
-        else:
-            raise NotImplemented(f"Unsupported shape type: {type(occ_shape)}")
-
-        return occ_shape
-    else:
-        raise RuntimeError("Failed to extract OpenCASCADE shape from IFC geometry")
-
-
-def load_ifc_mesh_bbox(ifc_path: str):
-    """Load first product's mesh from IFC using ifcopenshell.geom and return bbox and size."""
-    try:
-        import ifcopenshell.geom as geom
-    except Exception as e:
-        raise RuntimeError("ifcopenshell.geom not available: cannot validate IFC geometry") from e
-
-    settings = geom.settings()
-    settings.set(settings.USE_WORLD_COORDS, True)
-
-    f = ifcopenshell.open(ifc_path)
-    # Prefer the proxy we created, otherwise take any product with representation
-    products = f.by_type("IfcProduct")
-    target = None
-    for p in products:
-        if p.is_a("IfcBuildingElementProxy") and getattr(p, "Representation", None):
-            target = p
-            break
-    if target is None:
-        for p in products:
-            if getattr(p, "Representation", None):
-                target = p
-                break
-    if target is None:
-        raise RuntimeError("No representable product found in IFC for validation")
-
-    shape = geom.create_shape(settings, target)
-    verts = _triples(shape.geometry.verts)
-    mn, mx = _bbox_from_vertices(verts)
-    return mn, mx, _size_from_bbox(mn, mx)
-
-
-@pytest.fixture
-def test_dir():
-    return pathlib.Path(__file__).parent.resolve().absolute()
-
-
-def test_simple_sweep_1(test_dir):
-    ifc_file_path = test_dir / "input_temp/simple_sweep_1.ifc"
-    ifc_mn, ifc_mx, ifc_sz = load_ifc_mesh_bbox(ifc_file_path)
-    occ_shape = load_ifc_occ_shape(ifc_file_path)
-    assert occ_shape is not None
-    assert ifc_sz == pytest.approx((1.1, 0.1, 0.89578254))
-    assert ifc_mn == pytest.approx((-1.0, -1.3877787807814457e-17, 0.0))
-    assert ifc_mx == pytest.approx((0.10000000000000002, 0.1, 0.8957825463853046))
-
-
-def test_simple_sweep_2(test_dir):
-    ifc_file_path = test_dir / "input_temp/simple_sweep_2.ifc"
-    ifc_mn, ifc_mx, ifc_sz = load_ifc_mesh_bbox(ifc_file_path)
-    occ_shape = load_ifc_occ_shape(ifc_file_path)
-    assert occ_shape is not None
-    assert ifc_sz == pytest.approx((1.800000679914902, 0.9243618756667757, 2.0958492522636902))
-    assert ifc_mn == pytest.approx((-100.1, -50.0, 197.9041507477363))
-    assert ifc_mx == pytest.approx((-98.29999932008509, -49.075638124333224, 200.0))
-
-
-def test_pipe_12d(test_dir):
-    ifc_file_path = test_dir / "input_temp/pipe.ifc"
-    ifc_mn, ifc_mx, ifc_sz = load_ifc_mesh_bbox(ifc_file_path)
-    occ_shape = load_ifc_occ_shape(ifc_file_path)
-    assert occ_shape is not None
-    assert ifc_sz == pytest.approx((1.1068712115520611, 6.2215114729478955, 0.35776115971654576))
-    assert ifc_mn == pytest.approx((289080.64128449163, 5822851.344592881, 118.70711942014172))
-    assert ifc_mx == pytest.approx((289081.7481557032, 5822857.566104354, 119.06488057985827))