Add value diagram windows and view models

StructureHelperCommon/Models/Shapes/Logics/LinePolygonToPolyline2DConvertStrategy.cs

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+using netDxf.Entities;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using System.Collections.Generic;
+
+namespace StructureHelperCommon.Models.Shapes
+{
+    public class LinePolygonToPolyline2DConvertStrategy : IObjectConvertStrategy<Polyline2D, ILinePolygonShape>
+    {
+        public double Dx { get; set; } = 0;
+        public double Dy { get; set; } = 0;
+        public double Scale { get; set; } = 1;
+
+        public Polyline2D Convert(ILinePolygonShape linePolygon)
+        {
+            List<Polyline2DVertex> polylineVertices = [];
+            foreach (var item in linePolygon.Vertices)
+            {
+                Polyline2DVertex vertex = new Polyline2DVertex((item.Point.X + Dx) * Scale, (item.Point.Y + Dy) * Scale);
+                polylineVertices.Add(vertex);
+            }
+            Polyline2D polyline2D = new Polyline2D(polylineVertices)
+            {
+                IsClosed = linePolygon.IsClosed,
+            };
+            return polyline2D;
+        }
+    }
+}