x

src/moldinsight/core/side_action_designer.py

@@ -388,8 +388,24 @@ class LifterMechanismDesigner:
         }
 
     def _calculate_lifter_angle(self, region: Dict) -> float:
-        """计算斜顶角度（通常5-15度）"""
-        return 8.0
+        """基于倒扣深度和估算顶出行程计算斜顶角度（通常 5-15 度）。
+
+        angle = atan(undercut_depth / estimated_stroke)
+        """
+        bbox = region.get("bbox", {})
+        if "max" in bbox and "min" in bbox:
+            lateral = max(
+                abs(bbox["max"][0] - bbox["min"][0]),
+                abs(bbox["max"][1] - bbox["min"][1]),
+                abs(bbox["max"][2] - bbox["min"][2]),
+            )
+        else:
+            lateral = 5.0
+
+        undercut_depth = lateral * 0.4
+        estimated_stroke = max(undercut_depth * 3, 20.0)
+        angle = math.degrees(math.atan(undercut_depth / estimated_stroke))
+        return round(max(min(angle, 15.0), 5.0), 1)
 
     def _calculate_lifter_stroke(self, region: Dict) -> float:
         """计算斜顶行程"""