Add beam shear action view

StructureHelperCommon/Models/Forces/BeamShearActions/Factories/BeamShearLoadFactory.cs

@@ -0,0 +1,59 @@
+using StructureHelperCommon.Infrastructures.Exceptions;
+using System;
+
+//Copyright (c) 2025 Redikultsev Evgeny, Ekaterinburg, Russia
+//All rights reserved.
+
+namespace StructureHelperCommon.Models.Forces.BeamShearActions
+{
+    public enum ShearLoadTypes
+    {
+        DistributedLoad,
+        ConcentratedForce
+    }
+    public static class BeamShearLoadFactory
+    {
+        public static IBeamShearLoad GetBeamShearLoad(ShearLoadTypes loadType)
+        {
+            if (loadType == ShearLoadTypes.DistributedLoad)
+            {
+                return GetDistributedLoad();
+            }
+            else if (loadType == ShearLoadTypes.ConcentratedForce)
+            {
+                return GetConcentratedForce();
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknownObj(loadType));
+            }
+        }
+
+        private static ConcentratedForce GetConcentratedForce()
+        {
+            ConcentratedForce concentratedForce = new(Guid.NewGuid())
+            {
+                Name = "Concentrated force",
+                ForceValue = -5e4,
+                LoadRatio = 1,
+                RelativeLoadLevel = 0.5,
+                ForceCoordinate = 1
+            };
+            return concentratedForce;
+        }
+
+        private static DistributedLoad GetDistributedLoad()
+        {
+            DistributedLoad distributedLoad = new(Guid.NewGuid())
+            {
+                Name = "Distributed load",
+                LoadValue = -5e3,
+                LoadRatio = 1,
+                RelativeLoadLevel = 0.5,
+                StartCoordinate = 0,
+                EndCoordinate = 100
+            };
+            return distributedLoad;
+        }
+    }
+}