feat: 完善一级关系参数化建模与参数导出

step_editor/model.py

@@ -90,6 +90,7 @@ from .transforms import TransformMixin
 from .geometry_utils import *  # noqa: F403
 from .model_types import PartNode, TopologyStats
 from .step_io import (
+    _load_brep_shape,
     _load_plain_step,
     _load_with_xcaf,
     _parse_product_names,
@@ -130,6 +131,8 @@ class StepModel(FeatureMixin, ExportMixin, TransformMixin, OperationMixin, Polyd
         self._edge_duplicate_key_ids_cache: dict[tuple[object, ...], list[int]] | None = None
         self._same_domain_internal_edge_ids_cache: set[int] | None = None
         self._same_domain_duplicate_edge_ids_cache: set[int] | None = None
+        self._editable_feature_candidates_cache: dict[tuple[object, ...], list[dict[str, object]]] = {}
+        self._cylindrical_feature_candidates_cache: dict[tuple[object, ...], list[dict[str, object]]] = {}
         self._face_polydata_cache: dict[tuple[object, ...], object] = {}
         self._edge_polydata_cache: dict[tuple[object, ...], object] = {}
         self._polydata_cache_limit = 96
@@ -137,6 +140,13 @@ class StepModel(FeatureMixin, ExportMixin, TransformMixin, OperationMixin, Polyd
         self._face_mesh_deflections: dict[int, float] = {}
         self.refresh_topology()
 
+    @classmethod
+    def from_shape(cls, filename: str | Path, shape: TopoDS_Shape, *, name: str | None = None) -> "StepModel":
+        path = Path(filename)
+        part_name = name or path.stem or "model"
+        parts = [PartNode(1, part_name, "part", shape, path=part_name)]
+        return cls(path, parts, shape)
+
     @classmethod
     def load(cls, filename: str | Path) -> "StepModel":
         path = Path(filename)
@@ -151,6 +161,13 @@ class StepModel(FeatureMixin, ExportMixin, TransformMixin, OperationMixin, Polyd
             parts = [PartNode(1, fallback_name, "part", whole_shape, path=fallback_name)]
         return cls(path, parts, whole_shape)
 
+    @classmethod
+    def load_internal_brep(cls, filename: str | Path) -> "StepModel":
+        path = Path(filename)
+        if not path.exists():
+            raise FileNotFoundError(path)
+        return cls.from_shape(path, _load_brep_shape(path), name=path.stem)
+
     def display_parts(self) -> list[PartNode]:
         leaf_parts = [p for p in self.parts if p.kind == "part" and not p.shape.IsNull()]
         if leaf_parts:
@@ -220,6 +237,8 @@ class StepModel(FeatureMixin, ExportMixin, TransformMixin, OperationMixin, Polyd
         self._edge_duplicate_key_ids_cache = None
         self._same_domain_internal_edge_ids_cache = None
         self._same_domain_duplicate_edge_ids_cache = None
+        self._editable_feature_candidates_cache.clear()
+        self._cylindrical_feature_candidates_cache.clear()
         self._face_polydata_cache.clear()
         self._edge_polydata_cache.clear()
         self._mesh_deflection = None