diff --git a/core/selection.py b/core/selection.py
index e2a3c639..cb706e2b 100644
--- a/core/selection.py
+++ b/core/selection.py
@@ -16,7 +16,6 @@ from panda3d.core import (Vec3, Point3, Point2, LineSegs, ColorAttrib, RenderSta
 from direct.task.TaskManagerGlobal import taskMgr
 import math
 
-
 class SelectionSystem:
     """选择和变换系统类"""
 
@@ -125,9 +124,6 @@ class SelectionSystem:
     def createSelectionBox(self, nodePath):
         """为选中的节点创建选择框"""
         try:
-            #print(f"  开始创建选择框，目标节点: {nodePath.getName()}")
-
-            # 如果已有选择框，先移除
             if self.selectionBox:
                 print("  移除现有选择框")
                 self.selectionBox.removeNode()
@@ -137,21 +133,12 @@ class SelectionSystem:
                 print("  目标节点为空，取消创建")
                 return
 
-            # 创建选择框作为render的子节点，但会实时跟踪目标节点
             self.selectionBox = self.world.render.attachNewNode("selectionBox")
-            self.selectionBoxTarget = nodePath  # 保存目标节点引用
-            #print(f"  选择框节点创建完成: {self.selectionBox}")
+            self.selectionBoxTarget = nodePath
 
-            # 启动选择框更新任务
             taskMgr.add(self.updateSelectionBoxTask, "updateSelectionBox")
-            #print("  选择框更新任务已启动")
-
-            # 初始更新选择框
-            #print("  开始初始化选择框几何体...")
             self.updateSelectionBoxGeometry()
 
-            #print(f"  ✓ 为节点 {nodePath.getName()} 创建了选择框")
-
         except Exception as e:
             print(f"  ✗ 创建选择框失败: {str(e)}")
             import traceback
@@ -2298,7 +2285,7 @@ class SelectionSystem:
             view_direction.normalize()
 
             # 计算合适的观察距离
-            optimal_distance = max(size * 2.0, 5.0)
+            optimal_distance = max(size * 1, 1.0)
 
             # 计算目标摄像机位置
             target_cam_pos = center + (view_direction * optimal_distance)
diff --git a/core/world.py b/core/world.py
index 0f4ec28a..b6fabf41 100644
--- a/core/world.py
+++ b/core/world.py
@@ -323,8 +323,8 @@ class CoreWorld(Panda3DWorld):
         self.ground.setP(-90)
         self.ground.setZ(-1.0)
         self.ground.setColor(0.8, 0.8, 0.8, 1)
-        # self.ground.setTag("is_scene_element", "1")
-        # self.ground.setTag("tree_item_type", "SCENE_NODE")
+        self.ground.setTag("is_scene_element", "1")
+        self.ground.setTag("tree_item_type", "SCENE_NODE")
 
         # 创建支持贴图的材质
         mat = Material()
@@ -343,6 +343,8 @@ class CoreWorld(Panda3DWorld):
         self.ground2.setZ(49)  # 在X轴方向偏移
         self.ground2.setColor(0.8, 0.8, 0.8, 1)
         self.ground2.set_material(mat)
+        self.ground2.setTag("is_scene_element", "1")
+        self.ground2.setTag("tree_item_type", "SCENE_NODE")
 
         # 创建第三个相同的地面，位置在另一个方向
         self.ground3 = self.render.attachNewNode(cm.generate())
@@ -352,6 +354,8 @@ class CoreWorld(Panda3DWorld):
         self.ground3.setZ(49)  # 在X轴负方向偏移
         self.ground3.setColor(0.8, 0.8, 0.8, 1)
         self.ground3.set_material(mat)
+        self.ground3.setTag("is_scene_element", "1")
+        self.ground3.setTag("tree_item_type", "SCENE_NODE")
 
         self.ground4 = self.render.attachNewNode(cm.generate())
         # self.ground3.setR(90)
@@ -360,6 +364,8 @@ class CoreWorld(Panda3DWorld):
         self.ground4.setZ(49)  # 在X轴负方向偏移
         self.ground4.setColor(0.8, 0.8, 0.8, 1)
         self.ground4.set_material(mat)
+        self.ground4.setTag("is_scene_element", "1")
+        self.ground4.setTag("tree_item_type", "SCENE_NODE")
 
         self.ground5 = self.render.attachNewNode(cm.generate())
         self.ground5.setP(180)
@@ -368,6 +374,8 @@ class CoreWorld(Panda3DWorld):
         self.ground5.setZ(49)  # 在X轴负方向偏移
         self.ground5.setColor(0.8, 0.8, 0.8, 1)
         self.ground5.set_material(mat)
+        self.ground5.setTag("is_scene_element", "1")
+        self.ground5.setTag("tree_item_type", "SCENE_NODE")
 
         self.ground6 = self.render.attachNewNode(cm.generate())
         self.ground6.setP(90)
@@ -375,6 +383,8 @@ class CoreWorld(Panda3DWorld):
         self.ground6.setZ(99)  # 在X轴负方向偏移
         self.ground6.setColor(0.8, 0.8, 0.8, 1)
         self.ground6.set_material(mat)
+        self.ground6.setTag("is_scene_element", "1")
+        self.ground6.setTag("tree_item_type", "SCENE_NODE")
 
         # 应用默认PBR效果，确保支持贴图
         try:
diff --git a/ui/interface_manager.py b/ui/interface_manager.py
index e5e0c626..08a8284a 100644
--- a/ui/interface_manager.py
+++ b/ui/interface_manager.py
@@ -339,6 +339,23 @@ class InterfaceManager:
             groundItem.setData(0, Qt.UserRole, self.world.ground)
             groundItem.setData(0,Qt.UserRole + 1, "SCENE_NODE")
 
+        ground_nodes = [
+            ('ground2','地板2'),
+            ('ground3','地板3'),
+            ('ground4','地板4'),
+            ('ground5','地板5'),
+            ('ground6','地板6')
+        ]
+
+        for attr_name,display_name in ground_nodes:
+            if hasattr(self.world,attr_name):
+                ground_node = getattr(self.world,attr_name)
+                if ground_node:
+                    extraGroundItem = QTreeWidgetItem(sceneRoot,[display_name])
+                    extraGroundItem.setData(0,Qt.UserRole,ground_node)
+                    extraGroundItem.setData(0,Qt.UserRole+1,"SCENE_NODE")
+
+
         #添加灯光节点
         for light in self.world.Spotlight:
             if light: