feat: 完善 Face 一级关系编辑和稳定性

2026-08-04 09:35:39 +08:00
parent bb44e3920d
commit 5799d5d813
29 changed files with 6295 additions and 189 deletions
@@ -140,7 +140,26 @@ class PolydataMixin:
    def _ensure_mesh(self, deflection: float) -> None:
        requested = max(float(deflection), 1e-9)
        if self._mesh_deflection is None or requested < self._mesh_deflection * 0.999:
-            BRepMesh_IncrementalMesh(self.shape, requested)
+            if requested <= 0.04:
+                BRepMesh_IncrementalMesh(
+                    self.shape,
+                    0.35,
+                    False,
+                    math.radians(12.0),
+                    True,
+                )
+                for face in self.faces:
+                    try:
+                        surface_type = BRepAdaptor_Surface(face).GetType()
+                        if surface_type in {GeomAbs_Cylinder, GeomAbs_Cone}:
+                            BRepMesh_IncrementalMesh(face, requested, False, math.radians(1.2), True)
+                        elif surface_type in {GeomAbs_Sphere, GeomAbs_Torus}:
+                            BRepMesh_IncrementalMesh(face, max(requested, 0.1), False, math.radians(4.0), True)
+                    except Exception:
+                        continue
+            else:
+                angular_degrees = min(24.0, max(12.0, 12.0 * requested / 0.35))
+                BRepMesh_IncrementalMesh(self.shape, requested, False, math.radians(angular_degrees), True)
            self._mesh_deflection = requested

    def build_snapshot_polydata(self, snapshot: dict[object, object], deflection: float = 0.8):