Polygon Drawer and Rotator

Overview

This C# program allows users to create and manipulate polygons using a graphical user interface. The program consists of two main classes, Point2D and Polygon, and provides functionality to create, draw, and rotate polygons on a form. Users can input the center point, length, number of edges, and rotation angle of the polygon through text boxes, and visualize the polygon in a picture box.

Classes

Point2D Class

• Data Members: Cartesian coordinates (x and y)
• Properties: Accessor properties for x and y
• Constructors:
  • Default constructor
  • Constructor that sets initial 2D coordinates with random x and y values
• Methods:
  • printCoordinates(): Prints the coordinates of the 2D point
  • calculatePolarCoordinates(): Calculates polar coordinates (P(r,θ)) of the 2D point
  • calculateCartesianCoordinates(): Calculates Cartesian coordinates (P(x,y)) from polar coordinates
  • printPolarCoordinates(): Prints the pre-calculated polar coordinates of the 2D point

Polygon Class

• Data Members: Center (Point2D), length, number of edges
• Properties: Accessor properties for length and number of edges
• Constructors:
  • Default constructor
  • Constructor that takes initial center and length as parameters
• Methods:
  • calculateEdgeCoordinates(): Calculates the vertex points of the polygon starting from a random point
  • rotatePolygon(): Recalculates the vertex points of the polygon in a clockwise direction

GUI Elements

• TextBoxes:
  • Center of the polygon (range for x: [0,3], range for y: [0,3], default: (0,0))
  • Length of the polygon (range: [3-9], default: 4)
  • Number of edges of the polygon (range: [3-10], default: 5)
  • Angle of rotation (range: [0-359], default: 30)
• ListBox: Displays the edge coordinates in order
• PictureBox: Draws the graphics of the polygon
  • The center point of the polygon is the midpoint of the PictureBox
• Buttons:
  • Draw Polygon:
    • Creates a polygon object based on the text box values (rotation angle is zero for the first draw)
    • Recalculates the edge coordinates
    • Draws the polygon in the PictureBox and lists the edge coordinates in the ListBox
  • Rotate Polygon:
    • Rotates the drawn polygon based on the entered angle
    • Does nothing or gives a warning if no polygon is drawn
  • Set Random Values: Sets random values on all text boxes

Usage

1. Run the Program:

   • Open the project in your preferred C# IDE (e.g., Visual Studio).
   • Build and run the solution.

2. Interface:

   • Enter values for the center point, length, number of edges, and rotation angle in the respective text boxes.
   • Click "Draw Polygon" to create and draw the polygon.
   • The edge coordinates will be displayed in the ListBox.
   • Click "Rotate Polygon" to rotate the polygon based on the entered angle.
   • Click "Set Random Values" to populate the text boxes with random values.

Notes

• Default and random values are provided for ease of use. If these values cause issues, feel free to use alternative values.
• The program uses the midpoint of the PictureBox as the center point for drawing the polygon.

! Please check the Instruction file for more information.