diff --git a/DataAccess/DataAccess.csproj b/DataAccess/DataAccess.csproj
index 99c31d7..10399b9 100644
--- a/DataAccess/DataAccess.csproj
+++ b/DataAccess/DataAccess.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/FieldVisualizer/FieldVisualizer.csproj b/FieldVisualizer/FieldVisualizer.csproj
index dc9183b..9864ca7 100644
--- a/FieldVisualizer/FieldVisualizer.csproj
+++ b/FieldVisualizer/FieldVisualizer.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows7.0</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWPF>true</UseWPF>
     <ImplicitUsings>disable</ImplicitUsings>
diff --git a/FiledVisualzerDemo/FieldVisualzerDemo.csproj b/FiledVisualzerDemo/FieldVisualzerDemo.csproj
index b5219a8..79d4d64 100644
--- a/FiledVisualzerDemo/FieldVisualzerDemo.csproj
+++ b/FiledVisualzerDemo/FieldVisualzerDemo.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows7.0</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
     <ImplicitUsings>disable</ImplicitUsings>
diff --git a/StructureHelper/App.xaml b/StructureHelper/App.xaml
index 5ba44ad..64fd224 100644
--- a/StructureHelper/App.xaml
+++ b/StructureHelper/App.xaml
@@ -24,6 +24,7 @@
                 <ResourceDictionary Source="Infrastructure/UI/Resources/ServiceColors.xaml"/>
                 <ResourceDictionary Source="Infrastructure/UI/Resources/ScrollableWorkPlane.xaml"/>
                 <ResourceDictionary Source="Infrastructure/UI/Resources/BeamShearTemplate.xaml"/>
+                <ResourceDictionary Source="Infrastructure/UI/Resources/ShapeTemplates.xaml"/>
             </ResourceDictionary.MergedDictionaries>
         </ResourceDictionary>
     </Application.Resources>
diff --git a/StructureHelper/Infrastructure/Enums/PrimitiveType.cs b/StructureHelper/Infrastructure/Enums/PrimitiveType.cs
index fd86219..841adb7 100644
--- a/StructureHelper/Infrastructure/Enums/PrimitiveType.cs
+++ b/StructureHelper/Infrastructure/Enums/PrimitiveType.cs
@@ -2,9 +2,10 @@
 {
     public enum PrimitiveType
     {
-        Point,
-        Rectangle,
-        Circle,
-        Reinforcement
+        Point = 0,
+        Rectangle = 1,
+        Circle = 2,
+        Reinforcement = 3,
+        Polygon = 4
     }
 }
\ No newline at end of file
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/CircleViewPrimitive.cs b/StructureHelper/Infrastructure/UI/DataContexts/CircleViewPrimitive.cs
index 9923862..06dfd3b 100644
--- a/StructureHelper/Infrastructure/UI/DataContexts/CircleViewPrimitive.cs
+++ b/StructureHelper/Infrastructure/UI/DataContexts/CircleViewPrimitive.cs
@@ -29,15 +29,9 @@ namespace StructureHelper.Infrastructure.UI.DataContexts
         public double PrimitiveLeft => DeltaX - Diameter / 2d;
         public double PrimitiveTop => DeltaY - Diameter / 2d;
 
-        public CircleViewPrimitive(INdmPrimitive primitive) : base(primitive)
+        public CircleViewPrimitive(IEllipseNdmPrimitive primitive) : base(primitive)
         {
-            if (primitive is not IEllipseNdmPrimitive)
-            {
-                throw new StructureHelperException(ErrorStrings.DataIsInCorrect + $"\nExpected: {nameof(IEllipseNdmPrimitive)}, But was: {nameof(primitive)}");
-            }
-            var circle = primitive as IEllipseNdmPrimitive;
-            this.primitive = circle;
-            DivisionViewModel = new HasDivisionViewModel(circle.DivisionSize);
+            DivisionViewModel = new HasDivisionViewModel(primitive.DivisionSize);
         }
 
         public override INdmPrimitive GetNdmPrimitive()
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/Factories/ViewPrimitiveFactory.cs b/StructureHelper/Infrastructure/UI/DataContexts/Factories/ViewPrimitiveFactory.cs
deleted file mode 100644
index 82d9ada..0000000
--- a/StructureHelper/Infrastructure/UI/DataContexts/Factories/ViewPrimitiveFactory.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace StructureHelper.Infrastructure.UI.DataContexts
-{
-    internal static class ViewPrimitiveFactory
-    {
-        // to do public static PrimitiveBase GetViewPrimitive() { } 
-    }
-}
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/PointViewPrimitive.cs b/StructureHelper/Infrastructure/UI/DataContexts/PointViewPrimitive.cs
index d539543..b423999 100644
--- a/StructureHelper/Infrastructure/UI/DataContexts/PointViewPrimitive.cs
+++ b/StructureHelper/Infrastructure/UI/DataContexts/PointViewPrimitive.cs
@@ -1,11 +1,5 @@
-using System;
-using StructureHelper.Infrastructure.Enums;
-using StructureHelper.UnitSystem.Systems;
-using StructureHelper.Windows.MainWindow;
-using StructureHelperLogics.Models.Primitives;
-using StructureHelperLogics.Models.Materials;
-using StructureHelperCommon.Models.Shapes;
-using StructureHelperLogics.NdmCalculations.Primitives;
+using StructureHelperLogics.NdmCalculations.Primitives;
+using System;
 
 namespace StructureHelper.Infrastructure.UI.DataContexts
 {
@@ -38,10 +32,6 @@ namespace StructureHelper.Infrastructure.UI.DataContexts
 
         public double Diameter { get => Math.Sqrt(primitive.Area / Math.PI) * 2; }
 
-        public override INdmPrimitive GetNdmPrimitive()
-        {
-            return primitive;
-        }
         public override void Refresh()
         {
             RefreshPlacement();
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs b/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs
index 436961b..f30b7fe 100644
--- a/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs
+++ b/StructureHelper/Infrastructure/UI/DataContexts/PrimitiveOperations.cs
@@ -25,16 +25,18 @@ namespace StructureHelper.Infrastructure.UI.DataContexts
         public static PrimitiveBase ConvertNdmPrimitiveToPrimitiveBase(INdmPrimitive primitive)
         {
             PrimitiveBase viewItem;
-            if (primitive is IRectangleNdmPrimitive)
+            if (primitive is IRectangleNdmPrimitive rect)
             {
-                var rect = primitive as IRectangleNdmPrimitive;
                 viewItem = new RectangleViewPrimitive(rect);
             }
-            else if (primitive is IEllipseNdmPrimitive)
+            else if (primitive is IEllipseNdmPrimitive circle)
             {
-                var circle = primitive as IEllipseNdmPrimitive;
                 viewItem = new CircleViewPrimitive(circle);
             }
+            else if (primitive is IShapeNDMPrimitive shapeNDMPrimitive)
+            {
+                viewItem = new ShapeViewPrimitive(shapeNDMPrimitive);
+            }
             else if (primitive is IPointNdmPrimitive & primitive is not RebarNdmPrimitive)
             {
                 var point = primitive as IPointNdmPrimitive;
diff --git a/StructureHelper/Infrastructure/UI/DataContexts/ShapeViewPrimitive.cs b/StructureHelper/Infrastructure/UI/DataContexts/ShapeViewPrimitive.cs
new file mode 100644
index 0000000..7e4f289
--- /dev/null
+++ b/StructureHelper/Infrastructure/UI/DataContexts/ShapeViewPrimitive.cs
@@ -0,0 +1,59 @@
+using FieldVisualizer.Entities.Values.Primitives;
+using StructureHelper.Infrastructure.Enums;
+using StructureHelper.Windows.ViewModels.NdmCrossSections;
+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Models.Shapes;
+using StructureHelperLogics.NdmCalculations.Primitives;
+using System.Drawing.Drawing2D;
+using System.Linq;
+using System.Windows.Media;
+
+namespace StructureHelper.Infrastructure.UI.DataContexts
+{
+    public class ShapeViewPrimitive : PrimitiveBase
+    {
+        IShapeNDMPrimitive shapeNDMPrimitive;
+
+        public PathGeometry PathGeometry { get; set; }
+
+        public ShapeViewPrimitive(IShapeNDMPrimitive shapeNDMPrimitive) : base(shapeNDMPrimitive)
+        {
+            this.shapeNDMPrimitive = shapeNDMPrimitive;
+            DivisionViewModel = new HasDivisionViewModel(this.shapeNDMPrimitive.DivisionSize);
+            UpdatePath();
+        }
+
+        public override void Refresh()
+        {
+            UpdatePath();
+            OnPropertyChanged(nameof(CenterX));
+            OnPropertyChanged(nameof(CenterY));
+            OnPropertyChanged(nameof(PathGeometry));
+            base.Refresh();
+        }
+
+        private void UpdatePath()
+        {
+            var shape = shapeNDMPrimitive.Shape;
+            if (shape is not IPolygonShape polygon)
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknownObj(shape));
+            }
+            var points = polygon.Vertices.Select(x => x.Point).ToList();
+            if (points.Count == 0) return;
+
+            IPoint2D StartPoint = points[0];
+            System.Windows.Point systemPoint = GetSystemPoint(StartPoint);
+            var figure = new PathFigure { StartPoint = systemPoint };
+            for (int i = 1; i < points.Count; i++)
+                figure.Segments.Add(new LineSegment(GetSystemPoint(points[i]), true));
+            figure.IsClosed = true;
+            PathGeometry = new PathGeometry(new[] { figure });
+        }
+
+        private System.Windows.Point GetSystemPoint(IPoint2D helperPoint)
+        {
+            return new(DeltaX + shapeNDMPrimitive.Center.X + helperPoint.X, DeltaY - shapeNDMPrimitive.Center.Y - helperPoint.Y);
+        }
+    }
+}
diff --git a/StructureHelper/Infrastructure/UI/DataTemplates/PolygonTemplate.xaml b/StructureHelper/Infrastructure/UI/DataTemplates/PolygonTemplate.xaml
new file mode 100644
index 0000000..80858cb
--- /dev/null
+++ b/StructureHelper/Infrastructure/UI/DataTemplates/PolygonTemplate.xaml
@@ -0,0 +1,23 @@
+<UserControl x:Class="StructureHelper.Infrastructure.UI.DataTemplates.PolygonTemplate"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:StructureHelper"
+             xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
+             xmlns:infrastructure="clr-namespace:StructureHelper.Infrastructure"
+             xmlns:mouseEventTriggers="clr-namespace:StructureHelper.Infrastructure.UI.Triggers.MouseEventTriggers"
+             xmlns:dataContexts="clr-namespace:StructureHelper.Infrastructure.UI.DataContexts"
+             mc:Ignorable="d"
+             d:DataContext="{d:DesignInstance dataContexts:ShapeViewPrimitive}">
+    <StackPanel>
+        <Path Style="{StaticResource PolygonStyle}" d:DataContext="{d:DesignInstance dataContexts:ShapeViewPrimitive}">
+            <Path.RenderTransform>
+                <TransformGroup>
+                    <TranslateTransform X="{Binding CenterX}" Y="{Binding InvertedCenterY}"/>
+                    <RotateTransform/>
+                </TransformGroup>
+            </Path.RenderTransform>
+        </Path>
+    </StackPanel>
+</UserControl>
diff --git a/StructureHelper/Infrastructure/UI/DataTemplates/PolygonTemplate.xaml.cs b/StructureHelper/Infrastructure/UI/DataTemplates/PolygonTemplate.xaml.cs
new file mode 100644
index 0000000..70b450c
--- /dev/null
+++ b/StructureHelper/Infrastructure/UI/DataTemplates/PolygonTemplate.xaml.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace StructureHelper.Infrastructure.UI.DataTemplates
+{
+    /// <summary>
+    /// Логика взаимодействия для PolygonTemplate.xaml
+    /// </summary>
+    public partial class PolygonTemplate : UserControl
+    {
+        public PolygonTemplate()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/StructureHelper/Infrastructure/UI/GraphicalPrimitives/PolygonShapePrimitive.cs b/StructureHelper/Infrastructure/UI/GraphicalPrimitives/PolygonShapePrimitive.cs
new file mode 100644
index 0000000..01b5cc1
--- /dev/null
+++ b/StructureHelper/Infrastructure/UI/GraphicalPrimitives/PolygonShapePrimitive.cs
@@ -0,0 +1,44 @@
+using StructureHelper.Windows.Shapes;
+using StructureHelper.Windows.UserControls;
+using StructureHelperCommon.Models.Shapes;
+using StructureHelperLogics.NdmCalculations.Primitives;
+using System;
+using System.Linq;
+using System.Windows.Media;
+using System.Windows.Shapes;
+using PrimitiveVisualProperty = StructureHelperCommon.Models.VisualProperties.PrimitiveVisualProperty;
+
+namespace StructureHelper.Infrastructure.UI.GraphicalPrimitives
+{
+    public class PolygonShapePrimitive : IGraphicalPrimitive
+    {
+        private readonly PolygonShapeViewModel polygonShapeViewModel;
+        public string Name => "Polygon";
+        public PathGeometry PathGeometry { get; set; }
+        public PrimitiveVisualPropertyViewModel VisualProperty { get; } = new(new PrimitiveVisualProperty(Guid.Empty));
+
+        public PolygonShapePrimitive(PolygonShapeViewModel polygonShapeViewModel)
+        {
+            this.polygonShapeViewModel = polygonShapeViewModel;
+            VisualProperty.Color = (Color)ColorConverter.ConvertFromString("DarkGray");
+            VisualProperty.FactoredOpacity = 90;
+
+            var polygon = polygonShapeViewModel.GetPolygonShape(); 
+            var points = polygon.Vertices.Select(x => x.Point).ToList();
+            if (points.Count == 0) return;
+
+            IPoint2D StartPoint = points[0];
+            System.Windows.Point systemPoint = GetSystemPoint(StartPoint);
+            var figure = new PathFigure { StartPoint = systemPoint };
+            for (int i = 1; i < points.Count; i++)
+                figure.Segments.Add(new LineSegment(GetSystemPoint(points[i]), true));
+            figure.IsClosed = true;
+            PathGeometry = new PathGeometry(new[] { figure });
+        }
+
+        private System.Windows.Point GetSystemPoint(IPoint2D helperPoint)
+        {
+            return new(helperPoint.X, helperPoint.Y);
+        }
+    }
+}
diff --git a/StructureHelper/Infrastructure/UI/Resources/ButtonStyles.xaml b/StructureHelper/Infrastructure/UI/Resources/ButtonStyles.xaml
index 47afc7f..64a67f4 100644
--- a/StructureHelper/Infrastructure/UI/Resources/ButtonStyles.xaml
+++ b/StructureHelper/Infrastructure/UI/Resources/ButtonStyles.xaml
@@ -101,9 +101,11 @@
     <Color x:Key="ButtonLight" A="255" B="255" G="255" R="255"/>
     <Color x:Key="CalculatorColor" A="255" B="149" G="149" R="211"/>
     <Color x:Key="CalculatorFrameColor" A="255" B="109" G="109" R="166"/>
+    <Color x:Key="PrimitiveColor" A="255" B="190" G="120" R="120"/>
     <Color x:Key="ResultColor" A="255" B="200" G="200" R="200"/>
     <Color x:Key="ResultFrameColor" A="255" B="100" G="100" R="100"/>
     <SolidColorBrush x:Key="CalculatorCanvas" Color="{DynamicResource CalculatorColor}"/>
+    <SolidColorBrush x:Key="PrimitiveCanvas" Color="{DynamicResource PrimitiveColor}"/>
     <SolidColorBrush x:Key="CalculatorFrame" Color="{DynamicResource CalculatorFrameColor}"/>
     <SolidColorBrush x:Key="ResultCanvas" Color="{DynamicResource ResultColor}"/>
     <SolidColorBrush x:Key="ResultFrame" Color="{DynamicResource ResultFrameColor}"/>
@@ -117,6 +119,9 @@
     <Style x:Key="ButtonCalculatorCanvas" TargetType="Canvas" BasedOn="{StaticResource ButtonCanvas}">
         <Setter Property="Background" Value="{DynamicResource CalculatorCanvas}"/>
     </Style>
+    <Style x:Key="ButtonPrimitiveCanvas" TargetType="Canvas" BasedOn="{StaticResource ButtonCanvas}">
+        <Setter Property="Background" Value="{DynamicResource PrimitiveCanvas}"/>
+    </Style>
     <Style x:Key="ButtonResultCanvas" TargetType="Canvas" BasedOn="{StaticResource ButtonCanvas}">
         <Setter Property="Background" Value="{DynamicResource ResultCanvas}"/>
 
@@ -525,6 +530,17 @@
             </Canvas.Children>
         </Canvas>
     </DataTemplate>
+    <DataTemplate x:Key="Polygon">
+        <Canvas Style="{DynamicResource ButtonPrimitiveCanvas}">
+            <Canvas.Children>
+
+                <Path Margin="4" Data="M6,6 l2,2 l6,-6 l6,6 l1,6 l-4,8 l-16,-5
+                      z" Fill="DarkGray" Stroke="Black"/>
+                <Line X1="16" Y1="3" X2="16" Y2="29" Stroke="Black" StrokeThickness="0.5"/>
+                <Line X1="3" Y1="16" X2="29" Y2="16" Stroke="Black" StrokeThickness="0.5"/>
+            </Canvas.Children>
+        </Canvas>
+    </DataTemplate>
     <DataTemplate x:Key="Prestrain">
         <Canvas Style="{DynamicResource ButtonResultCanvas}">
             <Canvas.Children>
@@ -769,6 +785,59 @@
             </Canvas.Children>
         </Canvas>
     </DataTemplate>
+    <DataTemplate x:Key="TableHeight">
+        <Canvas Style="{DynamicResource ButtonResultCanvas}">
+            <Canvas.Children>
+                <ContentControl ContentTemplate="{DynamicResource ButtonResultRectangle}"/>
+                <Line X1="4" Y1="7" X2="28" Y2="7" Stroke="Black"/>
+                <Line X1="4" Y1="10" X2="28" Y2="10" Stroke="Black"/>
+                <Line X1="4" Y1="13" X2="28" Y2="13" Stroke="DarkGray" StrokeThickness="0.5"/>
+                <Line X1="4" Y1="16" X2="28" Y2="16" Stroke="DarkGray" StrokeThickness="0.5"/>
+                <Line X1="4" Y1="19" X2="28" Y2="19" Stroke="DarkGray" StrokeThickness="0.5"/>
+                <Line X1="4" Y1="22" X2="28" Y2="22" Stroke="DarkGray" StrokeThickness="0.5"/>
+                <Line X1="4" Y1="25" X2="28" Y2="25" Stroke="DarkGray" StrokeThickness="0.5"/>
+                <Line X1="12" Y1="7" X2="12" Y2="28" Stroke="Black" StrokeThickness="0.5"/>
+                <Line X1="17" Y1="7" X2="17" Y2="28" Stroke="Black" StrokeThickness="0.5"/>
+                <Line X1="22" Y1="7" X2="22" Y2="28" Stroke="Black" StrokeThickness="0.5"/>
+            </Canvas.Children>
+        </Canvas>
+    </DataTemplate>
+    <DataTemplate x:Key="TableRowAdd">
+        <Canvas Style="{DynamicResource ButtonResultCanvas}">
+            <Canvas.Children>
+                <ContentControl ContentTemplate="{DynamicResource TableHeight}"/>
+                <Rectangle Canvas.Top="25" Canvas.Left="4" Height="3" Width="24" Fill="Black"/>
+            </Canvas.Children>
+        </Canvas>
+    </DataTemplate>
+    <DataTemplate x:Key="TableRowAddAfter">
+        <Canvas Style="{DynamicResource ButtonResultCanvas}">
+            <Canvas.Children>
+                <ContentControl ContentTemplate="{DynamicResource TableHeight}"/>
+                <Rectangle Canvas.Top="16" Canvas.Left="4" Height="3" Width="24" Fill="DarkGray"/>
+                <Rectangle Canvas.Top="19" Canvas.Left="4" Height="3" Width="24" Fill="Black"/>
+            </Canvas.Children>
+        </Canvas>
+    </DataTemplate>
+    <DataTemplate x:Key="TableRowAddBefore">
+        <Canvas Style="{DynamicResource ButtonResultCanvas}">
+            <Canvas.Children>
+                <ContentControl ContentTemplate="{DynamicResource TableHeight}"/>
+                <Rectangle Canvas.Top="16" Canvas.Left="4" Height="3" Width="24" Fill="Black"/>
+                <Rectangle Canvas.Top="19" Canvas.Left="4" Height="3" Width="24" Fill="DarkGray"/>
+            </Canvas.Children>
+        </Canvas>
+    </DataTemplate>
+    <DataTemplate x:Key="TableRowDelete">
+        <Canvas Style="{DynamicResource ButtonResultCanvas}">
+            <Canvas.Children>
+                <ContentControl ContentTemplate="{DynamicResource TableHeight}"/>
+                <Rectangle Canvas.Top="16" Canvas.Left="4" Height="3" Width="24" Fill="Black"/>
+                <Line X1="4" Y1="13" X2="28" Y2="22" Stroke="Black" StrokeThickness="1"/>
+                <Line X1="4" Y1="22" X2="28" Y2="13" Stroke="Black" StrokeThickness="1"/>
+            </Canvas.Children>
+        </Canvas>
+    </DataTemplate>
     <DataTemplate x:Key="TreeGroup">
         <Canvas Style="{DynamicResource ButtonResultCanvas}">
             <Canvas.Children>
diff --git a/StructureHelper/Infrastructure/UI/Resources/ShapeEditTemplates.xaml b/StructureHelper/Infrastructure/UI/Resources/ShapeEditTemplates.xaml
index c83a468..274b4d7 100644
--- a/StructureHelper/Infrastructure/UI/Resources/ShapeEditTemplates.xaml
+++ b/StructureHelper/Infrastructure/UI/Resources/ShapeEditTemplates.xaml
@@ -1,8 +1,6 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
     <DataTemplate x:Key="RectangleShapeEdit">
-        <DataTemplate.Resources>
-        </DataTemplate.Resources>
         <Grid>
             <Grid.RowDefinitions>
                 <RowDefinition Height="22"/>
@@ -19,8 +17,6 @@
         </Grid>
     </DataTemplate>
     <DataTemplate x:Key="CircleShapeEdit">
-        <DataTemplate.Resources>
-        </DataTemplate.Resources>
         <Grid>
             <Grid.RowDefinitions>
                 <RowDefinition Height="22"/>
diff --git a/StructureHelper/Infrastructure/UI/Resources/ShapeTemplates.xaml b/StructureHelper/Infrastructure/UI/Resources/ShapeTemplates.xaml
new file mode 100644
index 0000000..c5a41dd
--- /dev/null
+++ b/StructureHelper/Infrastructure/UI/Resources/ShapeTemplates.xaml
@@ -0,0 +1,20 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:primitives="clr-namespace:StructureHelper.Infrastructure.UI.GraphicalPrimitives">
+    
+    <!-- Polygon template -->
+    <DataTemplate x:Key="PolygonShapeGraphTemplate"
+          DataType="primitives:PolygonShapePrimitive">
+        <Canvas>
+            <Path
+            Data ="{Binding PathGeometry}"
+            Stroke="Black"
+            StrokeThickness="0.005"
+            >
+                <Path.Fill>
+                    <SolidColorBrush Color="{Binding VisualProperty.Color}" Opacity="{Binding VisualProperty.Opacity}"/>
+                </Path.Fill>
+            </Path>
+        </Canvas>
+    </DataTemplate>
+</ResourceDictionary>
\ No newline at end of file
diff --git a/StructureHelper/Infrastructure/UI/Styles.xaml b/StructureHelper/Infrastructure/UI/Styles.xaml
index 9cd776f..fa20f11 100644
--- a/StructureHelper/Infrastructure/UI/Styles.xaml
+++ b/StructureHelper/Infrastructure/UI/Styles.xaml
@@ -20,6 +20,7 @@
     </Style>
 
     <Style TargetType="{x:Type Shape}" x:Key="ShapeStyle">
+        <Setter Property="Tag" Value="{Binding}"/>
         <Setter Property="Fill">
             <Setter.Value>
                 <SolidColorBrush Color="{Binding Color}"/>
@@ -39,6 +40,12 @@
         </Style.Triggers>
     </Style>
 
+    <Style x:Key="PolygonStyle" TargetType="Path" BasedOn="{StaticResource ShapeStyle}">
+        <Style.Setters>
+            <Setter Property="Data" Value="{Binding PathGeometry}"/>
+        </Style.Setters>
+    </Style>
+
     <Style x:Key="EllipseStyle" TargetType="Ellipse" BasedOn="{StaticResource ShapeStyle}">
         <Style.Setters>
             <Setter Property="Width" Value="{Binding Diameter}"/>
diff --git a/StructureHelper/StructureHelper.csproj b/StructureHelper/StructureHelper.csproj
index 4726725..220a373 100644
--- a/StructureHelper/StructureHelper.csproj
+++ b/StructureHelper/StructureHelper.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows7.0</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
 	<PublishSingleFile>true</PublishSingleFile>
     <Nullable>enable</Nullable>
     <UseWPF>true</UseWPF>
diff --git a/StructureHelper/StructureHelper.csproj.user b/StructureHelper/StructureHelper.csproj.user
index f506db5..b138752 100644
--- a/StructureHelper/StructureHelper.csproj.user
+++ b/StructureHelper/StructureHelper.csproj.user
@@ -9,6 +9,9 @@
     </ApplicationDefinition>
   </ItemGroup>
   <ItemGroup>
+    <Compile Update="Infrastructure\UI\DataTemplates\PolygonTemplate.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Update="Windows\Arrays\ArrayView.xaml.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -132,6 +135,9 @@
     <Compile Update="Windows\Services\CopyByParameterView.xaml.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Update="Windows\Shapes\PolygonShapeView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Update="Windows\UserControls\ButtonToolTipEh.xaml.cs">
       <SubType>Code</SubType>
     </Compile>
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/AnalysisViewModelLogic.cs b/StructureHelper/Windows/MainWindow/CrossSections/AnalysisViewModelLogic.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/AnalysisViewModelLogic.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/AnalysisViewModelLogic.cs
diff --git a/StructureHelper/Windows/MainWindow/CrossSectionView.xaml b/StructureHelper/Windows/MainWindow/CrossSections/CrossSectionView.xaml
similarity index 96%
rename from StructureHelper/Windows/MainWindow/CrossSectionView.xaml
rename to StructureHelper/Windows/MainWindow/CrossSections/CrossSectionView.xaml
index d154112..846c628 100644
--- a/StructureHelper/Windows/MainWindow/CrossSectionView.xaml
+++ b/StructureHelper/Windows/MainWindow/CrossSections/CrossSectionView.xaml
@@ -26,6 +26,9 @@
         <DataTemplate DataType="{x:Type dataContexts:PointViewPrimitive}">
             <dataTemplates:EllipseTemplate/>
         </DataTemplate>
+        <DataTemplate DataType="{x:Type dataContexts:ShapeViewPrimitive}">
+            <dataTemplates:PolygonTemplate/>
+        </DataTemplate>
         <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
     </Window.Resources>
     <DockPanel>
@@ -65,6 +68,16 @@
                 </Button>
             </ToolBar>
             <ToolBar ToolTip="Base Primitives" DataContext="{Binding PrimitiveLogic}">
+                <Button Style="{DynamicResource ToolButton}" Command="{Binding Add}" CommandParameter="{x:Static enums:PrimitiveType.Polygon}" >
+                    <Button.ToolTip>
+                        <uc:ButtonToolTipEh HeaderText="Add polygon primitive"
+                                                IconContent="{StaticResource Polygon}"
+                                                DescriptionText="Add polygon primitive with default properties into cross-section"/>
+                    </Button.ToolTip>
+                    <Viewbox>
+                        <ContentControl ContentTemplate="{StaticResource Polygon}"/>
+                    </Viewbox>
+                </Button>
                 <Button Style="{StaticResource ToolButton}" Command="{Binding Add}" CommandParameter="{x:Static enums:PrimitiveType.Rectangle}" ToolTip="Add Rectangle Primitive">
                     <Image Source="/Windows/MainWindow/Rectangle32.png"/>
                 </Button>
diff --git a/StructureHelper/Windows/MainWindow/CrossSectionView.xaml.cs b/StructureHelper/Windows/MainWindow/CrossSections/CrossSectionView.xaml.cs
similarity index 100%
rename from StructureHelper/Windows/MainWindow/CrossSectionView.xaml.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/CrossSectionView.xaml.cs
diff --git a/StructureHelper/Windows/MainWindow/CrossSectionViewModel.cs b/StructureHelper/Windows/MainWindow/CrossSections/CrossSectionViewModel.cs
similarity index 100%
rename from StructureHelper/Windows/MainWindow/CrossSectionViewModel.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/CrossSectionViewModel.cs
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/ForceCombinationViewModelLogic.cs b/StructureHelper/Windows/MainWindow/CrossSections/ForceCombinationViewModelLogic.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/ForceCombinationViewModelLogic.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/ForceCombinationViewModelLogic.cs
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/HasDivisionViewModel.cs b/StructureHelper/Windows/MainWindow/CrossSections/HasDivisionViewModel.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/HasDivisionViewModel.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/HasDivisionViewModel.cs
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/HelpLogic.cs b/StructureHelper/Windows/MainWindow/CrossSections/HelpLogic.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/HelpLogic.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/HelpLogic.cs
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/ICalculatorsViewModelLogic.cs b/StructureHelper/Windows/MainWindow/CrossSections/ICalculatorsViewModelLogic.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/ICalculatorsViewModelLogic.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/ICalculatorsViewModelLogic.cs
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/IForceCombinationViewModelLogic.cs b/StructureHelper/Windows/MainWindow/CrossSections/IForceCombinationViewModelLogic.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/IForceCombinationViewModelLogic.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/IForceCombinationViewModelLogic.cs
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs b/StructureHelper/Windows/MainWindow/CrossSections/PrimitiveViewModelLogic.cs
similarity index 80%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/PrimitiveViewModelLogic.cs
index 6e1841c..e13dad3 100644
--- a/StructureHelper/Windows/ViewModels/NdmCrossSections/PrimitiveViewModelLogic.cs
+++ b/StructureHelper/Windows/MainWindow/CrossSections/PrimitiveViewModelLogic.cs
@@ -62,43 +62,39 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             INdmPrimitive ndmPrimitive;
             if (primitiveType == PrimitiveType.Rectangle)
             {
-                var primitive = new RectangleNdmPrimitive
-                {
-                    Width = 0.4d,
-                    Height = 0.6d
-                };
+                RectangleNdmPrimitive primitive = GetNewRectanglePrimitive();
                 ndmPrimitive = primitive;
                 viewPrimitive = new RectangleViewPrimitive(primitive);
 
             }
             else if (primitiveType == PrimitiveType.Reinforcement)
             {
-                var primitive = new RebarNdmPrimitive
-                {
-                    Area = 0.0005d
-                };
+                RebarNdmPrimitive primitive = GetNewReinforcementPrimitive();
                 ndmPrimitive = primitive;
                 viewPrimitive = new ReinforcementViewPrimitive(primitive);
             }
             else if (primitiveType == PrimitiveType.Point)
             {
-                var primitive = new PointNdmPrimitive
-                {
-                    Area = 0.0005d
-                };
+                PointNdmPrimitive primitive = GetNewPointPrimitive();
                 ndmPrimitive = primitive;
                 viewPrimitive = new PointViewPrimitive(primitive);
             }
             else if (primitiveType == PrimitiveType.Circle)
             {
-                var primitive = new EllipseNdmPrimitive
-                {
-                    Width = 0.5d
-                };
+                EllipseNdmPrimitive primitive = GetNewCirclePrimitive();
                 ndmPrimitive = primitive;
                 viewPrimitive = new CircleViewPrimitive(primitive);
             }
-            else { throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + nameof(primitiveType)); }
+            else if (primitiveType == PrimitiveType.Polygon)
+            {
+                ShapeNdmPrimitive primitive = GetNewPolygonPrimitive();
+                ndmPrimitive = primitive;
+                viewPrimitive = new ShapeViewPrimitive(primitive);
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown + nameof(primitiveType));
+            }
             viewPrimitive.OnNext(this);
             repository.Primitives.Add(ndmPrimitive);
             ndmPrimitive.CrossSection = section;
@@ -107,6 +103,56 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             OnPropertyChanged(nameof(PrimitivesCount));
         }
 
+        private ShapeNdmPrimitive GetNewPolygonPrimitive()
+        {
+            PolygonShape polygon = new(Guid.NewGuid());
+            polygon.AddVertex(new Vertex(-0.2, 0.3));
+            polygon.AddVertex(new Vertex(0.2, 0.3));
+            polygon.AddVertex(new Vertex(0.1, 0));
+            polygon.AddVertex(new Vertex(0.2, -0.3));
+            polygon.AddVertex(new Vertex(-0.2, -0.3));
+            polygon.AddVertex(new Vertex(-0.1, 0));
+            ShapeNdmPrimitive shapeNdmPrimitive = new(Guid.NewGuid())
+            {
+                Name = "New polygon primitive"
+            };
+            shapeNdmPrimitive.SetShape(polygon);
+            return shapeNdmPrimitive;
+        }
+
+        private static EllipseNdmPrimitive GetNewCirclePrimitive()
+        {
+            return new EllipseNdmPrimitive
+            {
+                Width = 0.5d
+            };
+        }
+
+        private static PointNdmPrimitive GetNewPointPrimitive()
+        {
+            return new PointNdmPrimitive
+            {
+                Area = 0.0005d
+            };
+        }
+
+        private static RebarNdmPrimitive GetNewReinforcementPrimitive()
+        {
+            return new RebarNdmPrimitive
+            {
+                Area = 0.0005d
+            };
+        }
+
+        private static RectangleNdmPrimitive GetNewRectanglePrimitive()
+        {
+            return new RectangleNdmPrimitive
+            {
+                Width = 0.4d,
+                Height = 0.6d
+            };
+        }
+
         public ICommand Delete
         {
             get
@@ -201,7 +247,7 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
         {
             get
             {
-                return                     copyCommand ??= new RelayCommand(
+                return  copyCommand ??= new RelayCommand(
                         o => CopySelectedItem(SelectedItem.GetNdmPrimitive()),
                         o => SelectedItem != null
                     );
@@ -242,19 +288,23 @@ namespace StructureHelper.Windows.ViewModels.NdmCrossSections
             newPrimitive.Name += " copy";
             repository.Primitives.Add(newPrimitive);
             PrimitiveBase primitiveBase;
-            if (newPrimitive is IRectangleNdmPrimitive)
+            if (newPrimitive is IRectangleNdmPrimitive rectangle)
             {
-                primitiveBase = new RectangleViewPrimitive(newPrimitive as IRectangleNdmPrimitive);
+                primitiveBase = new RectangleViewPrimitive(rectangle);
             }
-            else if (newPrimitive is IEllipseNdmPrimitive)
+            else if (newPrimitive is IEllipseNdmPrimitive ellipse)
             {
-                primitiveBase = new CircleViewPrimitive(newPrimitive as IEllipseNdmPrimitive);
+                primitiveBase = new CircleViewPrimitive(ellipse);
+            }
+            else if (newPrimitive is IShapeNDMPrimitive shapeNDMPrimitive)
+            {
+                primitiveBase = new ShapeViewPrimitive(shapeNDMPrimitive);
             }
             else if (newPrimitive is IPointNdmPrimitive)
             {
-                if (newPrimitive is RebarNdmPrimitive)
+                if (newPrimitive is RebarNdmPrimitive rebar)
                 {
-                    primitiveBase = new ReinforcementViewPrimitive(newPrimitive as RebarNdmPrimitive);
+                    primitiveBase = new ReinforcementViewPrimitive(rebar);
                 }
                 else
                 {
diff --git a/StructureHelper/Windows/ViewModels/NdmCrossSections/SecondOrderViewModel.cs b/StructureHelper/Windows/MainWindow/CrossSections/SecondOrderViewModel.cs
similarity index 100%
rename from StructureHelper/Windows/ViewModels/NdmCrossSections/SecondOrderViewModel.cs
rename to StructureHelper/Windows/MainWindow/CrossSections/SecondOrderViewModel.cs
diff --git a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml
index 2d6653f..239716b 100644
--- a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml
+++ b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml
@@ -29,6 +29,16 @@
                 </Grid>
             </Expander>
         </DataTemplate>
+        <DataTemplate x:Key="PolygonProperties">
+            <Grid Height="22">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="*"/>
+                </Grid.ColumnDefinitions>
+                <TextBlock Text="Polygon properties"/>
+                <Button Grid.Column="1" Content="Edit polygon" Command="{Binding ShapeEditCommand}"/>
+            </Grid>
+        </DataTemplate>
         <DataTemplate x:Key="PointProperties">
             <Expander Header="Point" IsExpanded="True">
                 <Grid>
diff --git a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs
index 5319af9..e4900ba 100644
--- a/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs
+++ b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesView.xaml.cs
@@ -1,14 +1,10 @@
-using StructureHelper.Infrastructure.Enums;
-using StructureHelper.Infrastructure.UI.DataContexts;
+using StructureHelper.Infrastructure.UI.DataContexts;
 using StructureHelper.Windows.ViewModels.PrimitiveProperties;
 using StructureHelperLogics.Models.CrossSections;
-using System;
 using System.Collections.Generic;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
-using PointViewPrimitive = StructureHelper.Infrastructure.UI.DataContexts.PointViewPrimitive;
-using RectangleViewPrimitive = StructureHelper.Infrastructure.UI.DataContexts.RectangleViewPrimitive;
 
 namespace StructureHelper.Windows.PrimitivePropertiesWindow
 {
@@ -26,17 +22,15 @@ namespace StructureHelper.Windows.PrimitivePropertiesWindow
             viewModel.ParentWindow = this;
             this.DataContext = viewModel;
             InitializeComponent();
-            if (primitive is RectangleViewPrimitive) { AddPrimitiveProperties(PrimitiveType.Rectangle); }
-            else if (primitive is CircleViewPrimitive) { AddPrimitiveProperties(PrimitiveType.Circle); }
-            else if (primitive is PointViewPrimitive) { AddPrimitiveProperties(PrimitiveType.Point); }
-            else { throw new Exception("Type of object is unknown"); }   
+            AddPrimitiveProperties();
         }
-        private void AddPrimitiveProperties(PrimitiveType type)
+        private void AddPrimitiveProperties()
         {
             List<string> templateNames = new List<string>();
             if (primitive.DivisionViewModel is not null) { templateNames.Add("TriangulationProperties");}
             if (primitive is RectangleViewPrimitive) { templateNames.Add("RectangleProperties"); }
             if (primitive is CircleViewPrimitive) { templateNames.Add("CircleProperties"); }
+            if (primitive is ShapeViewPrimitive) { templateNames.Add("PolygonProperties"); }
             if (primitive is PointViewPrimitive) { templateNames.Add("PointProperties"); }
             if (primitive is ReinforcementViewPrimitive) { templateNames.Add("ReinforcementProperties"); }
             foreach (var name in templateNames)
diff --git a/StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesViewModel.cs
similarity index 90%
rename from StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs
rename to StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesViewModel.cs
index 307eb68..4e66107 100644
--- a/StructureHelper/Windows/ViewModels/PrimitiveProperties/PrimitivePropertiesViewModel.cs
+++ b/StructureHelper/Windows/PrimitivePropertiesWindow/PrimitivePropertiesViewModel.cs
@@ -2,6 +2,7 @@
 using StructureHelper.Infrastructure.UI.DataContexts;
 using StructureHelper.Models.Materials;
 using StructureHelper.Windows.MainWindow.Materials;
+using StructureHelper.Windows.Shapes;
 using StructureHelper.Windows.ViewModels.NdmCrossSections;
 using StructureHelperCommon.Infrastructures.Exceptions;
 using StructureHelperCommon.Models.Shapes;
@@ -23,6 +24,10 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
     {
         private PrimitiveBase primitive;
         private ICrossSectionRepository sectionRepository;
+        private RelayCommand shapeEditCommand;
+
+        private INdmPrimitive ndmPrimitive => primitive.GetNdmPrimitive();
+        private IShape shape => ndmPrimitive.Shape;
 
         public ICommand EditColorCommand { get; private set; }
         public ICommand EditMaterialCommand { get; private set; }
@@ -291,21 +296,40 @@ namespace StructureHelper.Windows.ViewModels.PrimitiveProperties
 
         public string Error => throw new NotImplementedException();
 
+        public ICommand ShapeEditCommand => shapeEditCommand ??= new RelayCommand(ShapeEdit, o => true);
+
+        private void ShapeEdit(object obj)
+        {
+            if (shape is IPolygonShape polygon)
+            {
+                var viewModel = new PolygonShapeViewModel(polygon, new Point2D() { X = CenterX, Y = CenterY});
+                var window = new PolygonView(viewModel);
+                window.ShowDialog();
+                if (window.DialogResult == true)
+                {
+                    var newPolygon = viewModel.GetPolygonShape();
+                    var updateStrategy = new PolygonShapeUpdateStrategy();
+                    updateStrategy.Update(polygon, newPolygon);
+                    primitive.Refresh();
+                }
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknownObj(shape));
+            }
+        }
+
         public PrimitivePropertiesViewModel(PrimitiveBase primitive, ICrossSectionRepository sectionRepository)
         {
             this.primitive = primitive;
             this.sectionRepository = sectionRepository;
-            HeadMaterials = new ObservableCollection<IHeadMaterial>();
-            foreach (var material in sectionRepository.HeadMaterials)
-            {
-                HeadMaterials.Add(material);
-            }
+            HeadMaterials = [.. sectionRepository.HeadMaterials];
             EditColorCommand = new RelayCommand(o => EditColor(), o => !SetMaterialColor);
             EditMaterialCommand = new RelayCommand(o => EditMaterial());
             HostPrimitives = new ObservableCollection<PrimitiveBase>();
             foreach (var item in sectionRepository.Primitives)
             {
-                if (item is RectangleNdmPrimitive || item is EllipseNdmPrimitive)
+                if (item is IHasDivisionSize)
                 {
                     CheckHost(primitive, item);
                     HostPrimitives.Add(PrimitiveOperations.ConvertNdmPrimitiveToPrimitiveBase(item));
diff --git a/StructureHelper/Windows/Shapes/Logics/PolygonShapeToGraphicPrimitveConvertStrategy.cs b/StructureHelper/Windows/Shapes/Logics/PolygonShapeToGraphicPrimitveConvertStrategy.cs
new file mode 100644
index 0000000..06c5da2
--- /dev/null
+++ b/StructureHelper/Windows/Shapes/Logics/PolygonShapeToGraphicPrimitveConvertStrategy.cs
@@ -0,0 +1,29 @@
+using StructureHelper.Infrastructure.UI.GraphicalPrimitives;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using StructureHelperCommon.Models.Shapes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Windows.Shapes.Logics
+{
+    public class PolygonShapeToGraphicPrimitveConvertStrategy : IObjectConvertStrategy<List<IGraphicalPrimitive>, IPolygonShape>
+    {
+        private PolygonShapeViewModel polygonShapeViewModel;
+
+        public PolygonShapeToGraphicPrimitveConvertStrategy(PolygonShapeViewModel polygonShapeViewModel)
+        {
+            this.polygonShapeViewModel = polygonShapeViewModel;
+        }
+
+        public List<IGraphicalPrimitive> Convert(IPolygonShape source)
+        {
+            List<IGraphicalPrimitive> primitives = new();
+            var polygonPrimitive = new PolygonShapePrimitive(polygonShapeViewModel);
+            primitives.Add(polygonPrimitive);
+            return primitives;
+        }
+    }
+}
diff --git a/StructureHelper/Windows/Shapes/Point2DViewModel.cs b/StructureHelper/Windows/Shapes/Point2DViewModel.cs
new file mode 100644
index 0000000..0471729
--- /dev/null
+++ b/StructureHelper/Windows/Shapes/Point2DViewModel.cs
@@ -0,0 +1,55 @@
+using StructureHelper.Infrastructure;
+using StructureHelperCommon.Models.Shapes;
+using System;
+
+namespace StructureHelper.Windows.Shapes
+{
+    public class Point2DViewModel : ViewModelBase
+    {
+        private readonly IPoint2D center;
+        private readonly IPoint2D point;
+
+
+        public double X
+        {
+            get => point.X - center.X;
+            set
+            {
+                try
+                {
+                    double val = value;
+                    point.X = val + center.X;
+                }
+                catch (Exception ex)
+                {
+                    //Nothing to do
+                }
+            }
+        }
+
+        public double Y
+        {
+            get => point.Y - center.Y;
+            set
+            {
+                try
+                {
+                    double val = value;
+                    point.Y = val + center.Y;
+                }
+                catch (Exception ex)
+                {
+                    //Nothing to do
+                }
+            }
+        }
+
+        public Point2DViewModel(IPoint2D point, IPoint2D center)
+        {
+            this.point = point;
+            this.center = center;
+        }
+        public Point2DViewModel(IPoint2D point) : this (point, new Point2D() { X = 0, Y = 0})
+        {    }
+    }
+}
diff --git a/StructureHelper/Windows/Shapes/PolygonShapeView.xaml b/StructureHelper/Windows/Shapes/PolygonShapeView.xaml
new file mode 100644
index 0000000..c3c7965
--- /dev/null
+++ b/StructureHelper/Windows/Shapes/PolygonShapeView.xaml
@@ -0,0 +1,111 @@
+<Window x:Class="StructureHelper.Windows.Shapes.PolygonView"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:StructureHelper.Windows.Shapes"
+        xmlns:uc="clr-namespace:StructureHelper.Windows.UserControls"
+        xmlns:ucwp="clr-namespace:StructureHelper.Windows.UserControls.WorkPlanes"
+        d:DataContext="{d:DesignInstance local:PolygonShapeViewModel}"
+        mc:Ignorable="d"
+        Title="Polygon" Height="450" Width="800" MinHeight="250" MinWidth="400" MaxHeight="800" MaxWidth="1200" WindowStartupLocation="CenterScreen">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="35"/>
+        </Grid.RowDefinitions>
+        <DockPanel>
+            <ToolBarTray DockPanel.Dock="Top">
+                <ToolBar>
+                    <Button Style="{StaticResource ToolButton}" Command="{Binding RedrawCommand}">
+                        <Button.ToolTip>
+                            <uc:ButtonToolTipEh HeaderText="Redraw polygon draft"
+                                                IconContent="{StaticResource Renew}"
+                                                DescriptionText="Redraws draft of polygon"/>
+                        </Button.ToolTip>
+                        <Viewbox>
+                            <ContentControl ContentTemplate="{StaticResource Renew}"/>
+                        </Viewbox>
+                    </Button>
+                </ToolBar>
+                <ToolBar Name="Add">
+                    <Button Style="{DynamicResource ToolButton}" Command="{Binding AddVertexCommand}">
+                        <Button.ToolTip>
+                            <uc:ButtonToolTipEh HeaderText="Add vertex"
+                                        IconContent="{StaticResource TableRowAdd}"
+                                        DescriptionText="Adds new vertex in the and of polygon"/>
+                        </Button.ToolTip>
+                        <Viewbox>
+                            <ContentControl ContentTemplate="{StaticResource TableRowAdd}"/>
+                        </Viewbox>
+                    </Button>
+                    <Button Style="{DynamicResource ToolButton}" Command="{Binding AddVertexBeforeCommand}">
+                        <Button.ToolTip>
+                            <uc:ButtonToolTipEh HeaderText="Add vertex before"
+                                        IconContent="{StaticResource TableRowAddBefore}"
+                                        DescriptionText="Adds new vertex before selected one"/>
+                        </Button.ToolTip>
+                        <Viewbox>
+                            <ContentControl ContentTemplate="{StaticResource TableRowAddBefore}"/>
+                        </Viewbox>
+                    </Button>
+                    <Button Style="{DynamicResource ToolButton}" Command="{Binding AddVertexAfterCommand}">
+                        <Button.ToolTip>
+                            <uc:ButtonToolTipEh HeaderText="Add vertex after"
+                                        IconContent="{StaticResource TableRowAddAfter}"
+                                        DescriptionText="Add vertex after selected one"/>
+                        </Button.ToolTip>
+                        <Viewbox>
+                            <ContentControl ContentTemplate="{StaticResource TableRowAddAfter}"/>
+                        </Viewbox>
+                    </Button>
+                </ToolBar>
+                <ToolBar Name="Delete">
+                    <Button Style="{DynamicResource ToolButton}" Command="{Binding DeleteVertexCommand}">
+                        <Button.ToolTip>
+                            <uc:ButtonToolTipEh HeaderText="Delete vertex"
+                                        IconContent="{StaticResource TableRowDelete}"
+                                        DescriptionText="Removes selected vertex"/>
+                        </Button.ToolTip>
+                        <Viewbox>
+                            <ContentControl ContentTemplate="{StaticResource TableRowDelete}"/>
+                        </Viewbox>
+                    </Button>
+                </ToolBar>
+            </ToolBarTray>
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="auto" MinWidth="100" MaxWidth="250"/>
+                    <ColumnDefinition/>
+                </Grid.ColumnDefinitions>
+                <StackPanel>
+                    <TextBlock Text="Center"/>
+                    <Grid>
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="20"/>
+                            <ColumnDefinition/>
+                        </Grid.ColumnDefinitions>
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="22"/>
+                            <RowDefinition Height="22"/>
+                        </Grid.RowDefinitions>
+                        <TextBlock Text="x = "/>
+                        <TextBox Grid.Column="1" Margin="2" Text="{Binding Center.X, Converter={StaticResource LengthConverter}, ValidatesOnDataErrors=True}" IsEnabled="False"/>
+                        <TextBlock Grid.Row="1" Text="y = "/>
+                        <TextBox Grid.Column="1" Margin="2" Grid.Row="1" Text="{Binding Center.Y, Converter={StaticResource LengthConverter}, ValidatesOnDataErrors=True}" IsEnabled="False"/>
+                    </Grid>
+                    <DataGrid ItemsSource="{Binding Vertices}" SelectedItem="{Binding SelectedVertex}" AutoGenerateColumns="False"
+                                CanUserAddRows="False" CanUserDeleteRows="False" CanUserReorderColumns="False">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Width="5" Foreground="DarkGray"/>
+                            <DataGridTextColumn Width="100" Header="X" Binding="{Binding Point.X}" CanUserSort="False"/>
+                            <DataGridTextColumn Width="100" Header="Y" Binding="{Binding Point.Y}" CanUserSort="False"/>
+                        </DataGrid.Columns>
+                    </DataGrid>
+                </StackPanel>
+                <ucwp:WorkPlaneRoot x:Name="WorkPlaneRootPanel" Grid.Column="1" DataContext="{Binding WorkPlaneRoot}"/>
+            </Grid>
+        </DockPanel>
+        <ContentControl Grid.Row="1" ContentTemplate="{StaticResource OkCancelButtons}" Content="{Binding}"/>
+    </Grid>
+</Window>
diff --git a/StructureHelper/Windows/Shapes/PolygonShapeView.xaml.cs b/StructureHelper/Windows/Shapes/PolygonShapeView.xaml.cs
new file mode 100644
index 0000000..cb4958b
--- /dev/null
+++ b/StructureHelper/Windows/Shapes/PolygonShapeView.xaml.cs
@@ -0,0 +1,19 @@
+using System.Windows;
+
+namespace StructureHelper.Windows.Shapes
+{
+    /// <summary>
+    /// Логика взаимодействия для PolygonView.xaml
+    /// </summary>
+    public partial class PolygonView : Window
+    {
+        private PolygonShapeViewModel viewModel;
+        public PolygonView(PolygonShapeViewModel viewModel)
+        {
+            InitializeComponent();
+            this.viewModel = viewModel;
+            viewModel.ParentWindow = this;
+            this.DataContext = viewModel;
+        }
+    }
+}
diff --git a/StructureHelper/Windows/Shapes/PolygonShapeViewModel.cs b/StructureHelper/Windows/Shapes/PolygonShapeViewModel.cs
new file mode 100644
index 0000000..5b3a365
--- /dev/null
+++ b/StructureHelper/Windows/Shapes/PolygonShapeViewModel.cs
@@ -0,0 +1,131 @@
+using StructureHelper.Infrastructure;
+using StructureHelper.Infrastructure.UI.GraphicalPrimitives;
+using StructureHelper.Windows.Shapes.Logics;
+using StructureHelper.Windows.UserControls.WorkPlanes;
+using StructureHelper.Windows.ViewModels;
+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using StructureHelperCommon.Models.Shapes;
+using StructureHelperLogics.Models.BeamShears;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Windows.Input;
+
+namespace StructureHelper.Windows.Shapes
+{
+    public class PolygonShapeViewModel : OkCancelViewModelBase
+    {
+        private const int minVertexCount = 3;
+        private readonly IPoint2D center;
+        private readonly IPolygonShape polygonShape;
+        private IObjectConvertStrategy<List<IGraphicalPrimitive>, IPolygonShape> logic;
+        public Point2DViewModel Center { get; }
+
+        public PolygonShapeViewModel(IPolygonShape polygonShape) : this(polygonShape, new Point2D() { X = 0, Y = 0 }) { }
+        public VertexViewModel SelectedVertex { get; set; }
+        public ObservableCollection<VertexViewModel> Vertices { get;} = new();
+        public WorkPlaneRootViewModel WorkPlaneRoot { get;} = new();
+
+        public PolygonShapeViewModel(IPolygonShape polygonShape, IPoint2D center)
+        {
+            this.polygonShape = polygonShape;
+            this.center = center;
+            Center = new(this.center);
+            foreach (var item in this.polygonShape.Vertices)
+            {
+                Vertices.Add(new VertexViewModel(item, this.center));
+            }
+            Redraw(null);
+        }
+
+        private RelayCommand addVertexCommand;
+        public ICommand AddVertexCommand => addVertexCommand ??= new RelayCommand(AddVertex);
+        public IPolygonShape GetPolygonShape()
+        {
+            IPolygonShape polygonShape = new PolygonShape(Guid.NewGuid());
+            polygonShape.Clear();
+            foreach (var item in Vertices)
+            {
+                Vertex vertex = new(Guid.NewGuid());
+                vertex.Point.X = item.Point.X;
+                vertex.Point.Y = item.Point.Y;
+                polygonShape.AddVertex(vertex);
+            }
+            return polygonShape;
+        }
+
+        private void AddVertex(object commandParameter)
+        {
+            VertexViewModel vertexViewModel = GetNewVertexViewModel();
+            Vertices.Add(vertexViewModel);
+            Redraw(null);
+        }
+
+        private static VertexViewModel GetNewVertexViewModel()
+        {
+            Vertex vertex = new(Guid.Empty);
+            VertexViewModel vertexViewModel = new(vertex);
+            return vertexViewModel;
+        }
+
+        private RelayCommand redrawCommand;
+        public ICommand RedrawCommand => redrawCommand ??= new RelayCommand(Redraw);
+
+        private void Redraw(object commandParameter)
+        {
+            logic = new PolygonShapeToGraphicPrimitveConvertStrategy(this);
+            WorkPlaneRoot.PrimitiveCollection.Primitives.Clear();
+            var polygon = GetPolygonShape();
+            WorkPlaneRoot.PrimitiveCollection.Primitives.Add(logic.Convert(polygon)[0]);
+        }
+
+        private RelayCommand addVertexBeforeCommand;
+        public ICommand AddVertexBeforeCommand => addVertexBeforeCommand ??= new RelayCommand(AddVertexBefore,
+            o => SelectedVertex is not null);
+
+        private void AddVertexBefore(object commandParameter)
+        {
+            int index = CheckVertexExists(SelectedVertex);
+            VertexViewModel vertexViewModel = GetNewVertexViewModel();
+            Vertices.Insert(index, vertexViewModel);
+            Redraw(null);
+        }
+
+        private int CheckVertexExists(VertexViewModel vertex)
+        {
+            int index = Vertices.IndexOf(vertex);
+            if (index == -1)
+            {
+                throw new StructureHelperException("The specified vertex was not found in the polygon.");
+            }
+            return index;
+        }
+
+        private RelayCommand addVertexAfterCommand;
+        public ICommand AddVertexAfterCommand => addVertexAfterCommand ??= new RelayCommand(AddVertexAfter,
+            o => SelectedVertex is not null);
+
+        private void AddVertexAfter(object commandParameter)
+        {
+            int index = CheckVertexExists(SelectedVertex);
+            VertexViewModel vertexViewModel = GetNewVertexViewModel();
+            Vertices.Insert(index+1, vertexViewModel);
+            Redraw(null);
+        }
+
+        private RelayCommand deleteVertexCommand;
+        public ICommand DeleteVertexCommand => deleteVertexCommand ??= new RelayCommand(DeleteVertex,
+            o => SelectedVertex is not null && Vertices.Count >= minVertexCount);
+
+        private void DeleteVertex(object commandParameter)
+        {
+            if (SelectedVertex is not null)
+            {
+                Vertices.Remove(SelectedVertex);
+            }
+            Redraw(null);
+        }
+    }
+}
diff --git a/StructureHelper/Windows/Shapes/VertexViewModel.cs b/StructureHelper/Windows/Shapes/VertexViewModel.cs
new file mode 100644
index 0000000..7aa3d87
--- /dev/null
+++ b/StructureHelper/Windows/Shapes/VertexViewModel.cs
@@ -0,0 +1,20 @@
+using StructureHelper.Infrastructure;
+using StructureHelperCommon.Models.Shapes;
+
+namespace StructureHelper.Windows.Shapes
+{
+    public class VertexViewModel : ViewModelBase
+    {
+        private readonly IVertex vertex;
+        public Point2DViewModel Point { get; private set; }
+        public VertexViewModel(IVertex vertex, IPoint2D center)
+        {
+            this.vertex = vertex;
+            Point = new(this.vertex.Point, center);
+        }
+
+        public VertexViewModel(Vertex vertex) : this(vertex, new Point2D())
+        {
+        }
+    }
+}
diff --git a/StructureHelper/Windows/UserControls/WorkPlane.xaml b/StructureHelper/Windows/UserControls/WorkPlane.xaml
index eede7d2..56c5b03 100644
--- a/StructureHelper/Windows/UserControls/WorkPlane.xaml
+++ b/StructureHelper/Windows/UserControls/WorkPlane.xaml
@@ -61,6 +61,13 @@
                                         <Image Style="{StaticResource ButtonImage16}" Source="/Windows/MainWindow/Circle32.png" />
                                     </MenuItem.Icon>
                                 </MenuItem>
+                                <MenuItem Header="Polygon" Command="{Binding Add}" CommandParameter="{x:Static enums:PrimitiveType.Polygon}">
+                                    <MenuItem.Icon>
+                                        <Viewbox Height="16" Width="16">
+                                            <ContentControl ContentTemplate="{StaticResource Polygon}"/>
+                                        </Viewbox>
+                                    </MenuItem.Icon>
+                                </MenuItem>
                                 <MenuItem Header="Rebar" Command="{Binding Add}" CommandParameter="{x:Static enums:PrimitiveType.Reinforcement}">
                                     <MenuItem.Icon>
                                         <Image Style="{StaticResource ButtonImage16}" Source="/Windows/MainWindow/Rebar32.png" />
diff --git a/StructureHelper/Windows/UserControls/WorkPlanes/PrimitiveTemplateSelector.cs b/StructureHelper/Windows/UserControls/WorkPlanes/PrimitiveTemplateSelector.cs
index 4b4e644..f9441d9 100644
--- a/StructureHelper/Windows/UserControls/WorkPlanes/PrimitiveTemplateSelector.cs
+++ b/StructureHelper/Windows/UserControls/WorkPlanes/PrimitiveTemplateSelector.cs
@@ -13,6 +13,7 @@ namespace StructureHelper.Windows.UserControls.WorkPlanes
         public DataTemplate StirrupByInclinedRebarTemplate { get; set; }
         public DataTemplate ConcentratedForceTemplate { get; set; }
         public DataTemplate DistributedLoadTemplate { get; set; }
+        public DataTemplate PolygonShapeTemplate { get; set; }
 
         public override DataTemplate SelectTemplate(object item, DependencyObject container)
         {
@@ -25,6 +26,7 @@ namespace StructureHelper.Windows.UserControls.WorkPlanes
                 StirrupByInclinedRebarPrimitive => StirrupByInclinedRebarTemplate,
                 ConcentratedForcePrimitive => ConcentratedForceTemplate,
                 DistributedLoadPrimitive => DistributedLoadTemplate,
+                PolygonShapePrimitive => PolygonShapeTemplate,
                 _ => base.SelectTemplate(item, container)
             };
         }
diff --git a/StructureHelper/Windows/UserControls/WorkPlanes/WorkPlaneRoot.xaml b/StructureHelper/Windows/UserControls/WorkPlanes/WorkPlaneRoot.xaml
index ab4040a..9205654 100644
--- a/StructureHelper/Windows/UserControls/WorkPlanes/WorkPlaneRoot.xaml
+++ b/StructureHelper/Windows/UserControls/WorkPlanes/WorkPlaneRoot.xaml
@@ -89,6 +89,7 @@
                         StirrupByInclinedRebarTemplate="{StaticResource StirrupByInclinedRebarPrimitiveTemplate}"
                         ConcentratedForceTemplate="{StaticResource ConcentratedForcePrimitiveTemplate}"
                         DistributedLoadTemplate="{StaticResource DistributedLoadPrimitiveTemplate}"
+                        PolygonShapeTemplate="{StaticResource PolygonShapeGraphTemplate}"
                         />
                             </ItemsControl.ItemTemplateSelector>
 
diff --git a/StructureHelperCommon/Infrastructures/Settings/ProgramSetting.cs b/StructureHelperCommon/Infrastructures/Settings/ProgramSetting.cs
index 60975db..f9ff024 100644
--- a/StructureHelperCommon/Infrastructures/Settings/ProgramSetting.cs
+++ b/StructureHelperCommon/Infrastructures/Settings/ProgramSetting.cs
@@ -98,7 +98,8 @@ namespace StructureHelperCommon.Infrastructures.Settings
             {
                 VersionNumber = 1,
                 //SubVersionNumber = 2 //Add Beam shear analysis
-                SubVersionNumber = 3 //Add stirrup group and inclined rebar
+                //SubVersionNumber = 3 //Add stirrup group and inclined rebar
+                SubVersionNumber = 4 //Add polygonshape primitive
             };
         }
     }
diff --git a/StructureHelperCommon/Models/Shapes/Logics/PolygonGeometryUtils.cs b/StructureHelperCommon/Models/Shapes/Logics/PolygonGeometryUtils.cs
index 08de6f5..f0b6e9a 100644
--- a/StructureHelperCommon/Models/Shapes/Logics/PolygonGeometryUtils.cs
+++ b/StructureHelperCommon/Models/Shapes/Logics/PolygonGeometryUtils.cs
@@ -9,6 +9,18 @@ namespace StructureHelperCommon.Models.Shapes
 {
     public static class PolygonGeometryUtils
     {
+        public static IPolygonShape GetTratsfromedPolygon(IPolygonShape polygon, double dx, double dy)
+        {
+            IPolygonShape newPolygon = new PolygonShape(Guid.Empty);
+            var updateLogic = new PolygonShapeUpdateStrategy();
+            updateLogic.Update(newPolygon, polygon);
+            foreach (var item in newPolygon.Vertices)
+            {
+                item.Point.X += dx;
+                item.Point.Y += dy;
+            }
+            return newPolygon;
+        }
         public static bool DoPolygonsEdgesIntersect(IPolygonShape polygon)
         {
             var vertices = polygon.Vertices;
diff --git a/StructureHelperCommon/Models/Shapes/Logics/PolygonUpdateStrategy.cs b/StructureHelperCommon/Models/Shapes/Logics/PolygonShapeUpdateStrategy.cs
similarity index 94%
rename from StructureHelperCommon/Models/Shapes/Logics/PolygonUpdateStrategy.cs
rename to StructureHelperCommon/Models/Shapes/Logics/PolygonShapeUpdateStrategy.cs
index 11d7e86..28c14c7 100644
--- a/StructureHelperCommon/Models/Shapes/Logics/PolygonUpdateStrategy.cs
+++ b/StructureHelperCommon/Models/Shapes/Logics/PolygonShapeUpdateStrategy.cs
@@ -9,7 +9,7 @@ using System.Windows.Shapes;
 
 namespace StructureHelperCommon.Models.Shapes
 {
-    public class PolygonUpdateStrategy : IUpdateStrategy<IPolygonShape>
+    public class PolygonShapeUpdateStrategy : IUpdateStrategy<IPolygonShape>
     {
         public void Update(IPolygonShape targetObject, IPolygonShape sourceObject)
         {
diff --git a/StructureHelperCommon/Models/Shapes/Logics/ShapeUpdateStrategy.cs b/StructureHelperCommon/Models/Shapes/Logics/ShapeUpdateStrategy.cs
index 31a45a1..31a76d6 100644
--- a/StructureHelperCommon/Models/Shapes/Logics/ShapeUpdateStrategy.cs
+++ b/StructureHelperCommon/Models/Shapes/Logics/ShapeUpdateStrategy.cs
@@ -7,7 +7,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace StructureHelperCommon.Models.Shapes.Logics
+namespace StructureHelperCommon.Models.Shapes
 {
     public class ShapeUpdateStrategy : IUpdateStrategy<IShape>
     {
@@ -24,12 +24,29 @@ namespace StructureHelperCommon.Models.Shapes.Logics
             {
                 ProcessCircles(targetObject, sourceCircle);
             }
+            else if (sourceObject is IPolygonShape sourcePolygon)
+            {
+                ProcessPolygon(targetObject, sourcePolygon);
+            }
             else
             {
                 throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknown);
             }
         }
 
+        private void ProcessPolygon(IShape targetObject, IPolygonShape sourcePolygon)
+        {
+            if (targetObject is IPolygonShape targetPolygon)
+            {
+                var updateLogic = new PolygonShapeUpdateStrategy();
+                updateLogic.Update(targetPolygon, sourcePolygon);
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.DataIsInCorrect + ": target object is not a polygon");
+            }
+        }
+
         private static void ProcessCircles(IShape targetObject, ICircleShape sourceCircle)
         {
             if (targetObject is ICircleShape targetCircle)
diff --git a/StructureHelperCommon/Models/Shapes/PolygonShape.cs b/StructureHelperCommon/Models/Shapes/PolygonShape.cs
index fb17e27..b27280e 100644
--- a/StructureHelperCommon/Models/Shapes/PolygonShape.cs
+++ b/StructureHelperCommon/Models/Shapes/PolygonShape.cs
@@ -10,7 +10,7 @@ namespace StructureHelperCommon.Models.Shapes
 
         public Guid Id { get; }
         public IReadOnlyList<IVertex> Vertices => _vertices;
-        public bool IsClosed { get; set; }
+        public bool IsClosed { get; set; } = true;
 
         public PolygonShape(Guid id)
         {
@@ -62,7 +62,6 @@ namespace StructureHelperCommon.Models.Shapes
             {
                 throw new StructureHelperException("The specified vertex was not found in the polygon.");
             }
-
             return index;
         }
 
diff --git a/StructureHelperCommon/Models/Shapes/Vertex.cs b/StructureHelperCommon/Models/Shapes/Vertex.cs
index 15620e4..34f39d2 100644
--- a/StructureHelperCommon/Models/Shapes/Vertex.cs
+++ b/StructureHelperCommon/Models/Shapes/Vertex.cs
@@ -11,8 +11,17 @@ namespace StructureHelperCommon.Models.Shapes
         {
             Id = id;
         }
+        /// <summary>
+        /// Creates new vertex with id = new Guid
+        /// </summary>
+        /// <param name="x">Coordinate x of vertex</param>
+        /// <param name="y">Coordinate y of vertex</param>
+        public Vertex(double x, double y) : this(Guid.NewGuid())
+        {
+            Point = new Point2D() { X = x, Y = y };
+        }
 
-        public IPoint2D Point { get; set; }
+        public IPoint2D Point { get; set; } = new Point2D(Guid.NewGuid()) { X = 0, Y = 0};
 
     }
 
diff --git a/StructureHelperCommon/StructureHelperCommon.csproj b/StructureHelperCommon/StructureHelperCommon.csproj
index c837296..bc542bb 100644
--- a/StructureHelperCommon/StructureHelperCommon.csproj
+++ b/StructureHelperCommon/StructureHelperCommon.csproj
@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <ImplicitUsings>disable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <UseWPF>true</UseWPF>
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/Logics/NdmPrimitiveUpdateStrategy.cs b/StructureHelperLogics/NdmCalculations/Primitives/Logics/NdmPrimitiveUpdateStrategy.cs
index 7277155..9dd3744 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/Logics/NdmPrimitiveUpdateStrategy.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/Logics/NdmPrimitiveUpdateStrategy.cs
@@ -27,6 +27,10 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
             {
                 new EllipsePrimitiveUpdateStrategy().Update(circle, (EllipseNdmPrimitive)sourceObject);
             }
+            else if (targetObject is IShapeNDMPrimitive shapePrimitive)
+            {
+                new ShapeNDMPrimitiveUpdateStrategy().Update(shapePrimitive, (IShapeNDMPrimitive)sourceObject);
+            }
             else
             {
                 ErrorCommonProcessor.ObjectTypeIsUnknown(typeof(INdmPrimitive), sourceObject.GetType());
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/Logics/RectanglePrimitiveUpdateStrategy.cs b/StructureHelperLogics/NdmCalculations/Primitives/Logics/RectanglePrimitiveUpdateStrategy.cs
index 90a15e5..da4a2e3 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/Logics/RectanglePrimitiveUpdateStrategy.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/Logics/RectanglePrimitiveUpdateStrategy.cs
@@ -1,12 +1,6 @@
 using StructureHelperCommon.Infrastructures.Interfaces;
 using StructureHelperCommon.Models.Shapes;
-using StructureHelperCommon.Models.Shapes.Logics;
 using StructureHelperCommon.Services;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace StructureHelperLogics.NdmCalculations.Primitives
 {
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/Logics/ShapeNDMPrimitiveUpdateStrategy.cs b/StructureHelperLogics/NdmCalculations/Primitives/Logics/ShapeNDMPrimitiveUpdateStrategy.cs
index fe8c50b..0e2a861 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/Logics/ShapeNDMPrimitiveUpdateStrategy.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/Logics/ShapeNDMPrimitiveUpdateStrategy.cs
@@ -1,6 +1,5 @@
 using StructureHelperCommon.Infrastructures.Interfaces;
 using StructureHelperCommon.Models.Shapes;
-using StructureHelperCommon.Models.Shapes.Logics;
 using StructureHelperCommon.Services;
 using System;
 using System.Collections.Generic;
@@ -18,12 +17,20 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
 
         public ShapeNDMPrimitiveUpdateStrategy(
             IUpdateStrategy<INdmPrimitive> basePrimitiveUpdateStrategy,
-            IUpdateStrategy<IDivisionSize> divisionPropsUpdateStrategy,
-            IUpdateStrategy<IShape> shapeUpdateStrategy)
+            IUpdateStrategy<IShape> shapeUpdateStrategy,
+            IUpdateStrategy<IDivisionSize> divisionPropsUpdateStrategy)
         {
             this.basePrimitiveUpdateStrategy = basePrimitiveUpdateStrategy;
-            this.divisionPropsUpdateStrategy = divisionPropsUpdateStrategy;
             this.shapeUpdateStrategy = shapeUpdateStrategy;
+            this.divisionPropsUpdateStrategy = divisionPropsUpdateStrategy;
+        }
+
+        public ShapeNDMPrimitiveUpdateStrategy() : this(
+            new BaseUpdateStrategy(),
+            new ShapeUpdateStrategy(),
+            new DivisionSizeUpdateStrategy())
+        {
+
         }
 
         public void Update(IShapeNDMPrimitive targetObject, IShapeNDMPrimitive sourceObject)
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/RectangleNdmPrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/RectangleNdmPrimitive.cs
index 2406cf9..b20fd89 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/RectangleNdmPrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/RectangleNdmPrimitive.cs
@@ -11,7 +11,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
 {
     public class RectangleNdmPrimitive : IRectangleNdmPrimitive
     {
-        private readonly RectanglePrimitiveUpdateStrategy updateStrategy = new();
+        private RectanglePrimitiveUpdateStrategy updateStrategy;
         private readonly RectangleShape rectangleShape = new();
         public Guid Id { get;}
         public string Name { get; set; }
@@ -43,6 +43,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
         public object Clone()
         {
             var primitive = new RectangleNdmPrimitive();
+            updateStrategy ??= new();
             updateStrategy.Update(primitive, this);
             return primitive;
         }
diff --git a/StructureHelperLogics/NdmCalculations/Primitives/ShapeNdmPrimitive.cs b/StructureHelperLogics/NdmCalculations/Primitives/ShapeNdmPrimitive.cs
index 537cd8a..61607c7 100644
--- a/StructureHelperLogics/NdmCalculations/Primitives/ShapeNdmPrimitive.cs
+++ b/StructureHelperLogics/NdmCalculations/Primitives/ShapeNdmPrimitive.cs
@@ -1,4 +1,6 @@
 using LoaderCalculator.Data.Ndms;
+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Infrastructures.Interfaces;
 using StructureHelperCommon.Models.Shapes;
 using StructureHelperLogics.Models.CrossSections;
 using StructureHelperLogics.NdmCalculations.Triangulations;
@@ -13,6 +15,7 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
     public class ShapeNdmPrimitive : IShapeNDMPrimitive
     {
         private IShape shape;
+        private IUpdateStrategy<IShapeNDMPrimitive> updateStrategy;
 
         public Guid Id { get; }
         public string? Name { get; set; } = string.Empty;
@@ -30,7 +33,12 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
 
         public object Clone()
         {
-            throw new NotImplementedException();
+            var primitive = new ShapeNdmPrimitive(Guid.NewGuid());
+            PolygonShape polygon = new(Guid.NewGuid());
+            primitive.SetShape(polygon);
+            updateStrategy ??= new ShapeNDMPrimitiveUpdateStrategy();
+            updateStrategy.Update(primitive, this);
+            return primitive;
         }
 
         public IEnumerable<INdm> GetNdms(ITriangulationOptions triangulationOptions)
@@ -69,7 +77,16 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
 
         public bool IsPointInside(IPoint2D point)
         {
-            throw new NotImplementedException();
+            if (shape is IPolygonShape polygon)
+            {
+                var newShape = PolygonGeometryUtils.GetTratsfromedPolygon(polygon, Center.X, Center.Y);
+                var calculator = new PolygonCalculator();
+                return calculator.ContainsPoint(newShape, point);
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknownObj(shape));
+            }
         }
 
         public void SetShape(IShape shape)
diff --git a/StructureHelperLogics/StructureHelperLogics.csproj b/StructureHelperLogics/StructureHelperLogics.csproj
index c221750..eda805b 100644
--- a/StructureHelperLogics/StructureHelperLogics.csproj
+++ b/StructureHelperLogics/StructureHelperLogics.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/StructureHelperTests/StructureHelperTests.csproj b/StructureHelperTests/StructureHelperTests.csproj
index 4995b4c..f179a43 100644
--- a/StructureHelperTests/StructureHelperTests.csproj
+++ b/StructureHelperTests/StructureHelperTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 	<GenerateAssemblyInfo>false</GenerateAssemblyInfo>