fix: 连续检测3D消失，连续检测选中面重置

Views/UserControl/Viewport3D.xaml.cs

@@ -34,6 +34,7 @@ public partial class Viewport3D
     /// <param name="e"></param>
     private void Viewport3D_OnLoaded(object sender, RoutedEventArgs e)
     {
+        ViewportManager.SetViewport3D(Viewport3Dx);
         ViewportManager.LoadModelByEntities(new List<Viewport3DTriangleEntity>());
         
         //选项初始化 显示-后端-管理类 一致
@@ -50,6 +51,7 @@ public partial class Viewport3D
         ViewportRightMenuSelectFaceAngleText.IsChecked = ViewportManager.DoubleClickSelectShowBorderAngle;
         ViewportRightMenuSelectFaceKind.IsChecked = ViewportManager.DoubleClickSelectShowPlaneType;
 
+        var a  = Viewport3Dx.Items;
     }
     /// <summary>
     /// 双击选择面

Views/UserControl/ViewportData/Helper/ViewportManager.cs

@@ -54,9 +54,14 @@ public class ViewportManager
     private static Viewport3DX _viewport;
     public static void SetViewport3D(Viewport3DX viewport3D)
     {
-        if (_viewport == null)
+        if (_viewport != null)
-            _viewport = viewport3D;
+        {
+            ClearDicModels();
+            _viewport.Items.Clear();
             
+        }
+
+        _viewport = viewport3D;
     }
     public static Viewport3DX GetViewport3D()
     {
@@ -87,6 +92,7 @@ public class ViewportManager
     {
         if (string.IsNullOrWhiteSpace(ChooseTriangleCode))
         {
+            ClearDicModels();
             return;
         }
 
@@ -156,9 +162,17 @@ public class ViewportManager
             entities.AddRange(ViewportTriangle);
         }
         
+        //重置
+        _viewport.Items.Clear();
+        ChooseTriangleCode = string.Empty;
+        ChooseAddModels.Clear();
+        ResetChooseAddModels();
+        
+        //刷新三角形
         ViewportTriangle.Clear();
         ViewportTriangle.AddRange(entities);
-        _viewport.Items.Clear();
+        
+        //初始化
         MainModel3D = ViewportHelperPro.GenerateModelByEntity(_viewport, entities);
         MainModelLines = ViewportHelperPro.GentrateLineByEntity(_viewport, entities);
         MainModelLighting = ViewportHelperPro.GenerateLightingForModel(_viewport);