Add triangulation of polygon

StructureHelperLogics/NdmCalculations/Triangulations/ITriangulationLogic.cs

@@ -1,12 +1,21 @@
-using System.Collections.Generic;
-using LoaderCalculator.Data.Ndms;
-using LoaderCalculator.Data.Materials;
+using LoaderCalculator.Data.Ndms;
 
 namespace StructureHelperLogics.NdmCalculations.Triangulations
 {
+    /// <summary>
+    /// Implements logic of obtaining of collection of ndm parts 
+    /// </summary>
     public interface ITriangulationLogic
     {
+        /// <summary>
+        /// Returns collection of ndm parts
+        /// </summary>
+        /// <returns></returns>
         IEnumerable<INdm> GetNdmCollection();
+        /// <summary>
+        /// Check options of triangulation
+        /// </summary>
+        /// <param name="options"></param>
         void ValidateOptions(ITriangulationLogicOptions options);
     }
 }