private void CalculateTriangles()
        {
            //**E**
            for (int round = 0; round < 2; round++)
            {
                for (int column = 0; column < FieldSize.ColumnsCount - 1; column++)
                {
                    //**D**
                    for (int row = 0; row < FieldSize.RowsCount - 1; row++)
                    {
                        ITriangle triangle = iTriangle.CreateTriangle();

                        //**A**
                        triangle.TopA = ListColumns[column].Column[row];

                        if (round == 0)
                        {
                            //**B**
                            triangle.TopB = ListColumns[column].Column[row + 1];

                            //**C**
                            triangle.TopC = ListColumns[column + 1].Column[row + 1];
                        }
                        //**F**
                        else if (round == 1)
                        {
                            triangle.TopB = ListColumns[column + 1].Column[row + 1];
                            triangle.TopC = ListColumns[column + 1].Column[row];
                        }
                        Triangles.Add(triangle);
                    }
                }
            }
        }