Smart rounding was ajusted

StructureHelperCommon/Services/SmartRoundLogic.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Services
+{
+    public class SmartRoundLogic : IDigitRoundLogic
+    {
+        public int DigitQuant { get; set; } = 3;
+
+        /// <summary>
+        /// Умное окруление до нужного числа значащих цифр, например (12345, 3) дает результат 12300, например (0.12345, 3) дает результат 0,123
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="quant"></param>
+        /// <returns></returns>
+        public double RoundValue(double value)
+        {
+            if (value == 0d) return 0d;
+            double valueOrder = Math.Log10(Math.Abs(value));
+            int order = Convert.ToInt32(Math.Ceiling(valueOrder));
+            double requiredOrder = Math.Pow(10, DigitQuant - order);
+            double roundedAbsValue = Math.Round(Math.Abs(value) * requiredOrder) / requiredOrder;
+            double roundedValue = Math.Sign(value) * roundedAbsValue;
+            return roundedValue;
+        }
+    }
+}