Восстановил проект Logic

StructureHelperLogics/Data/Shapes/Center.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.Data.Shapes
+{
+    /// <inheritdoc />
+    public class Center : ICenter
+    {
+        /// <inheritdoc />
+        public double CenterX { get; set; }
+        /// <inheritdoc />
+        public double CenterY { get; set; }
+    }
+}

StructureHelperLogics/Data/Shapes/ICenter.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.Data.Shapes
+{
+    /// <summary>
+    /// Interface for point of center of some shape
+    /// Интерфейс для точки центра некоторой формы
+    /// </summary>
+    public interface ICenter
+    {
+        /// <summary>
+        /// Coordinate of center of rectangle by local axis X, m
+        /// Координата центра вдоль локальной оси X, м
+        /// </summary>
+        double CenterX { get;}
+        /// <summary>
+        /// Coordinate of center of rectangle by local axis Y, m
+        /// Координата центра вдоль локальной оси Y, м
+        /// </summary>
+        double CenterY { get;}
+    }
+}

StructureHelperLogics/Data/Shapes/IRectangle.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.Data.Shapes
+{
+    public interface IRectangle
+    {
+        /// <summary>
+        /// Width of rectangle, m
+        /// </summary>
+        double Width { get; }
+        /// <summary>
+        /// Height of rectangle, m
+        /// </summary>
+        double Height { get; }
+        /// <summary>
+        /// Angle of rotating rectangle, rad
+        /// </summary>
+        double Angle { get; }
+    }
+}

StructureHelperLogics/Data/Shapes/Rectangle.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.Data.Shapes
+{
+    /// <inheritdoc />
+    public class Rectangle : IRectangle
+    {
+        /// <inheritdoc />
+        public double Width { get; set; }
+        /// <inheritdoc />
+        public double Height { get; set; }
+        /// <inheritdoc />
+        public double Angle { get; set; }
+    }
+}

StructureHelperLogics/NdmCalculations/Triangulations/IRectangleTriangulationLogic.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.NdmCalculations.Triangulations
+{
+    public interface IRectangleTriangulationLogic : ITriangulationLogic
+    {
+    }
+}

StructureHelperLogics/NdmCalculations/Triangulations/IRectangleTriangulationOptions.cs

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+using StructureHelperLogics.Data.Shapes;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.NdmCalculations.Triangulations
+{
+    /// <summary>
+    /// Parameter of triangulation of rectangle part of section
+    /// Параметры триангуляции прямоугольного участка сечения
+    /// </summary>
+    public interface IRectangleTriangulationOptions : ITriangulationLogicOptions
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        ICenter Center { get; }
+        /// <summary>
+        /// 
+        /// </summary>
+        IRectangle Rectangle { get; }
+        /// <summary>
+        /// Maximum size (width or height) of ndm part after triangulation
+        /// </summary>
+        double NdmMaxSize { get; }
+        /// <summary>
+        /// Minimum quantity of division of side of rectangle after triangulation
+        /// </summary>
+        int NdmMinDivision { get; }
+    }
+}

StructureHelperLogics/NdmCalculations/Triangulations/ITriangulationLogic.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using LoaderCalculator.Data.Ndms;
+using LoaderCalculator.Data.Materials;
+
+namespace StructureHelperLogics.NdmCalculations.Triangulations
+{
+    public interface ITriangulationLogic
+    {
+        ITriangulationLogicOptions Options { get; }
+        IEnumerable<INdm> GetNdmCollection(IMaterial material);
+        void ValidateOptions(ITriangulationLogicOptions options);
+    }
+}

StructureHelperLogics/NdmCalculations/Triangulations/ITriangulationLogicOptions.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.NdmCalculations.Triangulations
+{
+    public interface ITriangulationLogicOptions
+    {
+    }
+}

StructureHelperLogics/NdmCalculations/Triangulations/RectangleTriangulationLogic.cs

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+using LoaderCalculator.Data.Materials;
+using LoaderCalculator.Data.Ndms;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using LoaderCalculator.Data.Ndms.Transformations;
+
+namespace StructureHelperLogics.NdmCalculations.Triangulations
+{
+    public class RectangleTriangulationLogic : IRectangleTriangulationLogic
+    {
+        public ITriangulationLogicOptions Options { get; }
+
+        public IEnumerable<INdm> GetNdmCollection(IMaterial material)
+        {
+            IRectangleTriangulationOptions rectangleOptions = Options as IRectangleTriangulationOptions;
+            double width = rectangleOptions.Rectangle.Width;
+            double height = rectangleOptions.Rectangle.Height;
+            double ndmMaxSize = rectangleOptions.NdmMaxSize;
+            int ndmMinDivision = rectangleOptions.NdmMinDivision;
+            LoaderCalculator.Triangulations.RectangleTriangulationLogicOptions logicOptions = new LoaderCalculator.Triangulations.RectangleTriangulationLogicOptions(width, height, ndmMaxSize, ndmMinDivision);
+            var logic = LoaderCalculator.Triangulations.Triangulation.GetLogicInstance(logicOptions);
+            var ndmCollection = logic.GetNdmCollection(new LoaderCalculator.Data.Planes.RectangularPlane { Material = material });
+            double dX = rectangleOptions.Center.CenterX;
+            double dY = rectangleOptions.Center.CenterY;
+            NdmTransform.Move(ndmCollection, dX, dY);
+            double angle = rectangleOptions.Rectangle.Angle;
+            NdmTransform.Rotate(ndmCollection, angle);
+            return ndmCollection;
+        }
+
+        public void ValidateOptions(ITriangulationLogicOptions options)
+        {
+            throw new NotImplementedException();
+        }
+
+        public RectangleTriangulationLogic(ITriangulationLogicOptions options)
+        {
+            Options = options;
+        }
+    }
+}

StructureHelperLogics/NdmCalculations/Triangulations/RectangleTriangulationOptions.cs

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+using StructureHelperLogics.Data.Shapes;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StructureHelperLogics.NdmCalculations.Triangulations
+{
+    /// <inheritdoc />
+    public class RectangleTriangulationOptions : IRectangleTriangulationOptions
+    {
+        /// <inheritdoc />
+        public ICenter Center { get; }
+        /// <inheritdoc />
+        public IRectangle Rectangle { get; }
+        /// <inheritdoc />
+        public double NdmMaxSize { get; }
+        /// <inheritdoc />
+        public int NdmMinDivision { get; }
+
+        public RectangleTriangulationOptions(ICenter center, IRectangle rectangle, double ndmMaxSize, int ndmMinDivision)
+        {
+            Center = center;
+            Rectangle = rectangle;
+            NdmMaxSize = ndmMaxSize;
+            NdmMinDivision = ndmMinDivision;
+        }
+    }
+}

StructureHelperLogics/StructureHelperLogics.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Reference Include="LoaderCalculator">
+      <HintPath>..\..\StructureHelper\Libraries\LoaderCalculator.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+
+</Project>