A real-time analog clock simulation developed using OpenGL and GLUT, demonstrating classic Computer Graphics algorithms and interactive graphical rendering techniques.
The Interactive Graphics Clock System is a Computer Graphics project developed using C++, OpenGL, and GLUT.
This application simulates a fully functional analog clock that synchronizes with the system time and updates in real time. The project focuses on implementing fundamental Computer Graphics algorithms, including line drawing and circle drawing techniques, rather than relying solely on built-in graphics primitives.
The clock supports multiple visual themes and provides an interactive user experience through keyboard controls.
🎬 Demo Video
✅ Real-time analog clock synchronization
✅ Multiple visual themes
✅ Interactive keyboard controls
✅ Dynamic hour, minute, and second hands
✅ Concentric clock face design
✅ Algorithm-based graphics rendering
✅ Lightweight and efficient implementation
| Technology | Purpose |
|---|---|
| C++ | Programming Language |
| OpenGL | Graphics Rendering |
| GLUT / FreeGLUT | Window Management & Event Handling |
| Code::Blocks | Development Environment |
Interactive-Graphics-Clock-System/
│
├── main.cpp
├── Interactive Graphics Clock System.cbp
├── LICENSE
├── README.md
│
└── images/
├── Screenshot_1.png
└── Screenshot_3.pngThe application retrieves the current system time and dynamically updates the positions of the clock hands.
The project utilizes:
- Bresenham Line Drawing Algorithm
- Midpoint Circle Algorithm
- Scan Conversion Circle Filling
- Trigonometric calculations for hand positioning
- GLUT Timer Functions for real-time updates
The positions of the clock hands are calculated using trigonometric functions:
x = centerX + radius * cos(angle);
y = centerY + radius * sin(angle);The display refreshes every second to ensure accurate synchronization with system time.
Used for:
- Hour hand rendering
- Minute hand rendering
- Second hand rendering
- Hour markings
- Minute markings
Used for:
- Clock boundary creation
- Decorative concentric circles
Used for:
- Multi-layer clock face rendering
- Center pivot rendering
| Key | Action |
|---|---|
1 |
Activate Theme 1 |
2 |
Activate Theme 2 |
ESC |
Exit Application |
g++ main.cpp -o clock -lglut -lGLU -lGL./clockThrough this project, the following concepts were practiced:
- Computer Graphics Fundamentals
- Raster Graphics Algorithms
- OpenGL Graphics Programming
- Real-Time Rendering
- Event-Driven Programming
- Interactive User Interface Design
- Mathematical Visualization Techniques
Department of Computer Science & Engineering (CSE)
University of Asia Pacific (UAP)
GitHub: https://github.com/tausif112
This project is licensed under the MIT License.
This project was developed as part of the Computer Graphics Laboratory coursework and demonstrates the practical implementation of classical graphics algorithms using OpenGL and GLUT.