Icons for force result were added

StructureHelperLogics/NdmCalculations/Analyses/ByForces/LimitCurve/LimitCurveLogic.cs

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+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Models.Calculators;
+using StructureHelperCommon.Models.Shapes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
+{
+    public class LimitCurveLogic : ILimitCurveLogic
+    {
+        private IPoint2D currentPoint;
+        private ILimitCurveParameterLogic parameterLogic;
+        public Predicate<IPoint2D> LimitPredicate { get; set; }
+        public LimitCurveLogic(ILimitCurveParameterLogic parameterLogic)
+        {
+            this.parameterLogic = parameterLogic;
+        }
+        public LimitCurveLogic(Predicate<IPoint2D> limitPredicate) : this (new LimitCurveParameterLogic(limitPredicate))
+        {
+            LimitPredicate = limitPredicate;
+        }
+        public List<IPoint2D> GetPoints(List<IPoint2D> points)
+        {
+            List<IPoint2D> resultList = new();
+            if (LimitPredicate(new Point2D()) == true)
+            {
+                throw new StructureHelperException(ErrorStrings.DataIsInCorrect + ": predicate for zero value is not valid");
+            }
+            foreach (var point in points)
+            {
+                double parameter;
+                currentPoint = point.Clone() as IPoint2D;
+                parameterLogic.CurrentPoint = currentPoint;
+                if (LimitPredicate(point) == false)
+                {
+                    parameter = 1d;
+                }
+                else
+                {
+                    parameter = parameterLogic.GetParameter();
+                }
+                var resultPoint = new Point2D()
+                {
+                    X = currentPoint.X * parameter,
+                    Y = currentPoint.Y * parameter
+                };
+                resultList.Add(resultPoint);
+            }
+            return resultList;
+        }
+    }
+}