feat: 完善一级关系参数化建模与参数导出

step_editor/export.py

@@ -61,7 +61,7 @@ from OCC.Extend.TopologyUtils import TopologyExplorer, discretize_edge
 
 from .constants import CURVE_TYPES, SNAPSHOT_FACE_LOGICAL_IDS_KEY, SURFACE_TYPES
 from .geometry_utils import *  # noqa: F403
-from .step_io import _prepare_shape_for_step_export, _write_step
+from .step_io import _prepare_shape_for_step_export, _write_brep, _write_step
 
 
 class ExportMixin:
@@ -71,6 +71,9 @@ class ExportMixin:
         )
         _write_step(export_shape, Path(filename))
 
+    def export_internal_brep(self, filename: str | Path) -> None:
+        _write_brep(self.shape, Path(filename))
+
     def export_quality_info(self, scope: str, target_id: int | None = None) -> dict[str, object]:
         if scope == "all":
             return _shape_quality_info("当前完整模型", self.shape, expect_solid=False)