2D Primitive Drawing and Clipping Application

This application implements basic 2D drawing functionality and two line clipping algorithms: Cohen-Sutherland and Liang-Barsky. It allows users to draw points, lines, and rectangles, and then perform clipping within a defined rectangular boundary.

Images

Features

• Draw Primitives: Create points, lines, and rectangles.
• Clipping Algorithms:
  • Cohen-Sutherland Clipping: Standard line-clipping algorithm.
  • Liang-Barsky Clipping: Efficient algorithm based on parametric line equations.
• Interactive Drawing:
  • Left mouse click to draw primitives.
  • Selection menu for choosing the primitive to draw.
  • Clear the scene and apply clipping dynamically.

Prerequisites

1. GLUT (OpenGL Utility Toolkit): Required for handling windowing and input functionality.
2. GLEW (OpenGL Extension Wrangler): Ensures support for modern OpenGL functionality.
3. C++ Compiler: GCC or any equivalent supporting modern C++ (e.g., C++11 or later).

Compilation

Use the following command to compile the application (assuming GLUT and GLEW are properly installed):

 g++ -o clipping_OpenGL main.cpp -lGL -lGLU -lGLEW -lglut

Running the Application

Execute the compiled binary:

./clipping_OpenGL

Controls

• Left Mouse Button: Draws the selected primitive.
• Keyboard:
  • ESC: Exit the application.
  • Implemented mouseControl logic for scene interaction.

Functionalities

Drawing

• Points, lines, and rectangles can be drawn by selecting appropriate modes.

Selection Menu

• A vertical selection menu helps switch between drawing modes.
• Selection options appear as UI icons on the left-hand side of the window.