Interface for array was created

StructureHelperLogics/Models/Arrays/IGeometryArrayMember.cs

@@ -0,0 +1,15 @@
+using StructureHelperCommon.Models.Shapes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.Models.Arrays
+{
+    public interface IGeometryArrayMember
+    {
+        IPoint2D Center { get; set; }
+        double RotationAngle { get; set; }
+    }
+}