GenericShape or Polygon Area Calculator in C#

Shape.cs

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace GenericAreaCalculator { public class Shape { public Dictionary<int,int> x; public Dictionary<int, int> y; public Shape() { x = new Dictionary<int, int>(); y = new Dictionary<int, int>(); } } }

Area.cs

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace GenericAreaCalculator { public class Area:Shape { public float CalculateArea(Shape Shapes,int sides) { float area = 0; int x1 = 0; int y2 = 0; int y1 = 0; int x2 = 0; if (sides > 1) { for (int index = 1; index < sides; index++) { x1 = Shapes.x[index]; y2 = Shapes.y[index + 1]; y1 = Shapes.y[index]; x2 = Shapes.x[index + 1]; area = area + (((x1 * y2)) - ((y1 * x2))); } int xn = Shapes.x[sides]; y1 = Shapes.y[1]; int yn = Shapes.y[sides]; x1 = Shapes.x[1]; area = (area + (((xn * y1)) - ((yn * x1))))/2; } else if (sides == 1) { area = (float)(3.14 * Shapes.x[0] * Shapes.x[0]); } return Math.Abs(area); } } }

Program.cs

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace GenericAreaCalculator { class Program { static void Main(string[] args) { Shape shapeobj = new Shape(); shapeobj.x.Add(1, 0); shapeobj.x.Add(2, 10); shapeobj.x.Add(3, 10); shapeobj.x.Add(4, 0); shapeobj.y.Add(1, 0); shapeobj.y.Add(2, 0); shapeobj.y.Add(3, 10); shapeobj.y.Add(4, 10); Area area = new Area(); float ShapeArea = area.CalculateArea(shapeobj, 4); Console.WriteLine("Area of Square is:{0}", ShapeArea); shapeobj.x.Clear(); shapeobj.y.Clear(); shapeobj.x.Add(0, 10); ShapeArea = area.CalculateArea(shapeobj, 1); Console.WriteLine("Area of Circle is:{0}", ShapeArea); Console.ReadLine(); } } }

Output: