Tuple crack calculator was changed

StructureHelperLogics/NdmCalculations/Primitives/IVisualProperty.cs

@@ -9,10 +9,22 @@ namespace StructureHelperLogics.NdmCalculations.Primitives
 {
     public interface IVisualProperty
     {
+        /// <summary>
+        /// Flag of visibility
+        /// </summary>
         bool IsVisible { get; set; }
         Color Color { get; set; }
+        /// <summary>
+        /// Flag of assigning of color from material or from primitive's settings
+        /// </summary>
         bool SetMaterialColor { get; set; }
+        /// <summary>
+        /// Index by z-coordinate
+        /// </summary>
         int ZIndex { get; set; }
+        /// <summary>
+        /// Opacity of filling
+        /// </summary>
         double Opacity { get; set; }
     }
 }