diff --git a/Views/UserControl/ViewportData/Helper/ViewportHelperPro.cs b/Views/UserControl/ViewportData/Helper/ViewportHelperPro.cs
index d09380b..f4e2248 100644
--- a/Views/UserControl/ViewportData/Helper/ViewportHelperPro.cs
+++ b/Views/UserControl/ViewportData/Helper/ViewportHelperPro.cs
@@ -20,6 +20,7 @@ using System.Windows.Controls;
 using HelixToolkit.Wpf;
 using MeshBuilder = HelixToolkit.Wpf.SharpDX.MeshBuilder;
 using OrthographicCamera = HelixToolkit.Wpf.SharpDX.OrthographicCamera;
+using System.Windows.Input;
 
 
 namespace SparkClient.Views.UserControl.ViewportData.Helper;
@@ -1306,7 +1307,7 @@ public class ViewportHelperPro
         float r =5;
         if(double.TryParse(ViewportManager.DiamondData["M2"].ToString(), out var v))
         {
-            r = (float)(v*0.501);
+            r = (float)(v*0.51);
         }
         //var x1 = r;
         //var z1 = lineCal.calZ(x1);
@@ -1450,12 +1451,16 @@ public class ViewportHelperPro
     private static void LineA_MouseUp3D(object sender, RoutedEventArgs e)
     {
         isDrawing = false;
+        var Viewport = ViewportManager.GetViewport3D();
+        Viewport.Cursor = Cursors.Arrow;
     }
 
     private static void LineA_MouseDown3D(object sender, RoutedEventArgs e)
     {
         isDrawing = true;
         if(e is HelixToolkit.Wpf.SharpDX.MouseDown3DEventArgs ev){
+            var Viewport = ViewportManager.GetViewport3D();
+            Viewport.Cursor = Cursors.SizeAll;
             // 获取鼠标点击的位置
             var mousePosition = ev.Position;
             previousMousePosition = Get3DPointFromMouse(mousePosition);
@@ -1609,6 +1614,7 @@ public class ViewportHelperPro
     {
         isDrawing = false;
         var Viewport = ViewportManager.GetViewport3D();
+        Viewport.Cursor = Cursors.Arrow;
         initialRadius = endRadius;
         initDistance = endDistance;
         // 释放鼠标捕获
@@ -1634,6 +1640,7 @@ public class ViewportHelperPro
             center.Y = Y;
             initDistance = CalculateDistance(mouseWorldPosition, center.ToPoint3D());
             var Viewport = ViewportManager.GetViewport3D();
+            Viewport.Cursor = Cursors.SizeAll;
             // 捕获鼠标
             Viewport.CaptureMouse();
         }