diff --git a/AIStudio.Wpf.DiagramApp/ViewModels/PageViewModel.cs b/AIStudio.Wpf.DiagramApp/ViewModels/PageViewModel.cs
index 6c9d0a3..3ef6179 100644
--- a/AIStudio.Wpf.DiagramApp/ViewModels/PageViewModel.cs
+++ b/AIStudio.Wpf.DiagramApp/ViewModels/PageViewModel.cs
@@ -33,7 +33,7 @@ namespace AIStudio.Wpf.DiagramApp.ViewModels
 
             DiagramViewModels = new ObservableCollection<IDiagramViewModel>()
             {
-                new DiagramViewModel(){Name= "页-1", DiagramType = diagramType, ZoomValue = 0.8},
+                new DiagramViewModel(){Name= "页-1", DiagramType = diagramType},
             };
             DiagramViewModel = DiagramViewModels.FirstOrDefault();
 
diff --git a/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml b/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml
index 7f34f49..435b29d 100644
--- a/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml
+++ b/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml
@@ -1896,13 +1896,13 @@
                                                     <dd:DiagramControl x:Name="diagram" DataContext="{Binding .}" Margin="50"/>
                                                 </DockPanel>
                                             </ScrollViewer>
-                                            <!--<dd:ZoomBox x:Name="zoomBox"
+                                            <dd:ZoomBox x:Name="zoomBox"
                                                Width="180"
                                                HorizontalAlignment="Right"
                                                VerticalAlignment="Bottom"
                                                ScrollViewer="{Binding ElementName=designerScrollViewer}"
                                                ZoomValue="{Binding ZoomValue,Mode=TwoWay}"   
-                                               Margin="0,0,5,5" />-->
+                                               Margin="0,0,5,5" />
                                         </Grid>
                                     </DataTemplate>
                                 </TabControl.ContentTemplate>
diff --git a/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs b/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs
index c78b8b2..6ef5cd9 100644
--- a/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs
+++ b/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs
@@ -24,24 +24,7 @@ namespace AIStudio.Wpf.DiagramDesigner
         }
 
         public static readonly DependencyProperty ScrollViewerProperty =
-            DependencyProperty.Register(nameof(ScrollViewer), typeof(ScrollViewer), typeof(ZoomBox), new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnScrollViewerChanged)));
-
-        private static void OnScrollViewerChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ZoomBox target = (ZoomBox)d;
-            ScrollViewer oldvalue = (ScrollViewer)e.OldValue;
-            ScrollViewer newvalue = (ScrollViewer)e.NewValue;
-            target.OnScrollViewerChanged(oldvalue, newvalue);
-        }
-
-        protected virtual void OnScrollViewerChanged(ScrollViewer oldvalue, ScrollViewer newvalue)
-        {
-            if (newvalue != null)
-            {
-                DesignerCanvas = VisualHelper.FindChild<DesignerCanvas>(newvalue);
-            }
-        }
+            DependencyProperty.Register(nameof(ScrollViewer), typeof(ScrollViewer), typeof(ZoomBox));
         #endregion
 
         #region DesignerCanvas
@@ -154,8 +137,8 @@ namespace AIStudio.Wpf.DiagramDesigner
 
                 double scale, xOffset, yOffset;
                 this.InvalidateScale(out scale, out xOffset, out yOffset);
-                this.zoomThumb.Width = this.ScrollViewer.ViewportWidth * scale;
-                this.zoomThumb.Height = this.ScrollViewer.ViewportHeight * scale;
+                this.zoomThumb.Width = (this.ScrollViewer.ViewportWidth) * scale;
+                this.zoomThumb.Height = (this.ScrollViewer.ViewportHeight) * scale;
                 Canvas.SetLeft(this.zoomThumb, xOffset + this.ScrollViewer.HorizontalOffset * scale);
                 Canvas.SetTop(this.zoomThumb, yOffset + this.ScrollViewer.VerticalOffset * scale);
             }
diff --git a/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml b/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml
index 7ed812c..8c87a02 100644
--- a/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml
+++ b/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml
@@ -181,7 +181,7 @@
                                             Name="PART_ZoomCanvas">
                                         <Canvas.Background>
                                             <VisualBrush Stretch="Uniform"
-                                                         Visual="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=DesignerCanvas}" />
+                                                         Visual="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=ScrollViewer.Content}" />
                                         </Canvas.Background>
                                         <Thumb Name="PART_ZoomThumb"
                                                Cursor="SizeAll">
@@ -205,34 +205,24 @@
                             <Expander.Header>
                                 <Grid>
                                     <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="Auto" />
                                         <ColumnDefinition Width="*" />
+                                        <ColumnDefinition Width="Auto" />
                                     </Grid.ColumnDefinitions>
                                     <Slider Name="PART_ZoomSlider"
-                                            VerticalAlignment="Center"
-                                            HorizontalAlignment="Center"
-                                            Margin="0"
                                             Ticks="0.25,0.50,0.75,1,1.25,1.50,2.00,3.00,4.00,5.00"
                                             Minimum="0.25"
                                             Maximum="5"
                                             SmallChange="0.25"
                                             LargeChange="0.25"
-                                            Value="{Binding ZoomValue,RelativeSource={RelativeSource Mode=TemplatedParent},Mode=TwoWay}"
-                                            MinWidth="104"
-                                            MinHeight="21"
+                                            Value="{Binding ZoomValue,RelativeSource={RelativeSource Mode=TemplatedParent},Mode=TwoWay}"                                      
                                             IsSnapToTickEnabled="True"
                                             IsMoveToPointEnabled="False" />
 
-                                    <TextBlock Text="{Binding ElementName=PART_ZoomSlider, Path=Value}"
+                                    <TextBlock Text="{Binding ElementName=PART_ZoomSlider, Path=Value, StringFormat={}{0:P}}"
                                                Grid.Column="1"
                                                VerticalAlignment="Center"
                                                HorizontalAlignment="Right"
-                                               Margin="0,0,14,0" />
-                                    <TextBlock Text="%"
-                                               Grid.Column="1"
-                                               VerticalAlignment="Center"
-                                               HorizontalAlignment="Right"
-                                               Margin="1,0,2,0" />
+                                               Margin="0,0,2,0" />
                                 </Grid>
                             </Expander.Header>
                         </Expander>
diff --git a/AIStudio.Wpf.Mind/MindType.cs b/AIStudio.Wpf.Mind/MindType.cs
new file mode 100644
index 0000000..8cf7bf6
--- /dev/null
+++ b/AIStudio.Wpf.Mind/MindType.cs
@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Text;
+
+namespace AIStudio.Wpf.Mind
+{
+    public enum MindType
+    {
+        [Description("思维导图")]
+        Mind,
+        [Description("目录组织图")]
+        Directory,
+        [Description("鱼骨头图")]
+        FishBone,
+        [Description("逻辑结构图")]
+        Logical,
+        [Description("组织结构图")]
+        Organizational,
+        [Description("天盘图")]
+        Celestial
+    }
+}
diff --git a/AIStudio.Wpf.Mind/ViewModels/MindNode.cs b/AIStudio.Wpf.Mind/ViewModels/MindNode.cs
index 75b1e31..21114a3 100644
--- a/AIStudio.Wpf.Mind/ViewModels/MindNode.cs
+++ b/AIStudio.Wpf.Mind/ViewModels/MindNode.cs
@@ -1,8 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Linq;
 using System.Text;
 using AIStudio.Wpf.DiagramDesigner;
+using AIStudio.Wpf.DiagramDesigner.Geometrys;
 using AIStudio.Wpf.DiagramDesigner.Models;
 
 namespace AIStudio.Wpf.Mind.ViewModels
@@ -55,6 +57,10 @@ namespace AIStudio.Wpf.Mind.ViewModels
         {
             get; set;
         }
+
+  
+
+     
     }
 
     public class MindLevel1Node : MindNode
@@ -78,6 +84,24 @@ namespace AIStudio.Wpf.Mind.ViewModels
         {
 
         }
+
+        public void LayoutUpdated()
+        {
+            foreach(var child in Children)
+            {
+
+            }
+        }
+
+        public RectangleBase Rectangle
+        {
+            get; set;
+        }
+
+        public RectangleBase GetChildRectangle()
+        {
+            //Children.Select(p => p.Size)
+        }
     }
 
     public class MindLevel2Node : MindNode
@@ -101,6 +125,11 @@ namespace AIStudio.Wpf.Mind.ViewModels
         {
 
         }
+
+        public PointBase Offset
+        {
+            get; set;
+        }
     }
 
     public class MindLevel3Node : MindNode
@@ -124,5 +153,10 @@ namespace AIStudio.Wpf.Mind.ViewModels
         {
 
         }
+
+        public PointBase Offset
+        {
+            get; set;
+        }
     }
 }
diff --git a/Directory.Build.Props b/Directory.Build.Props
index 801ea2a..4d652c4 100644
--- a/Directory.Build.Props
+++ b/Directory.Build.Props
@@ -1,7 +1,7 @@
 <Project>
   <!-- Project properties -->
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.1;net461;net5.0-windows</TargetFrameworks>
+    <TargetFrameworks>netcoreapp3.1;net5.0-windows</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">