Computer Graphics

• Windows

How to add graphics.h in dev C++

1. Add header source files into the Dev C++ directory

   • First, download the header files from this Google drive link and extract the files.

   • It contains three files:

     • graphics.h

     • winbgim.h

     • libbgi.a.

   • You need to copy "graphics.h" and "winbgim.h" into include the directory of Dev-Cpp program resource files. The exact directory address is –

     • C:\Program Files (x86)\Dev-Cpp\MinGW64\include

   • Next, copy “libbgi.a” to lib folder, which should be inside MinGW64. The directory address is –

     • C:\Program Files (x86)\Dev-Cpp\MinGW64\lib

2. Change compiler suit in Dev C++

   • First open Dev C++ appliaction.

   • On the right side of the toolbar, you will have the drop-down menu to select the desired compiler suit.

   • Set it to TDM - GCC 4.9.2 32-bit release.

3. Configure required linkers for graphics

   • On Dev, C++, look for the Tool option on the top menu.

   • Expand tools and select Compiler Options.

   • You should arrive on the general tab of the compiler options window.

   • Ensure the “Add the following commands when calling the linker” check box is selected.

   • Then add these linkers in the input box – (just copy and paste this line)

     -libgcc -lbgi -lgdi32 -lcomdlg32 -luuid -loleaut32 -lole32

   • Then click on OK to save.

     Reference

• Linux

Installation/verification for openGL

OpenGL comes with the X11 installation, to verify, look for the following files:

• header file: /usr/include/GL/glut.h

• If OpenGL and/or GLUT is not installed on your system, you can install both with: Ubuntu: sudo apt-get install freeglut3-dev

  or

  Fedora/RedHat: sudo yum install freeglut-devel

  which should install all the dependent packages, including OpenGL itself. You must have sudo/administrator privileges.

• In your OpenGL source files, include the following line:

  #include <GL/glut.h>

You don't need to include gl.h and glu.h, as they are already included in glut.h.

• To make a GLUT application on the command line, use the following linker options:

  -lGL -lGLU -lglut

Programs

1. Scan Conversion Algorithm

   The process of representing continuous graphics object as a collection of discrete pixels is known as scan conversion.

   • Scan Converting a Point and a straight Line:

     • Digital Analyzer Algorithm
     • Bresenham's Line Drawing Algorithm
   • Scan Converting Circle and Ellipse:

     • Mid Point Circle Algorithm
     • Bresenham Circle Algorithm
     • Ellipse Algorithm
2. 2D Geometric Transformations

   • Simulation of 2D Transformation
   • Rotation
   • Scaling
   • Shearing
   • Translation
   • Reflection
   • Cohen Sutherland line clipping algorithm
   • Window Viewport Mapping
   • Composite Transformation
3. 3D Geometric transformation

   • Menu driven program
   • Moving Car
4. 3D Objects Representation

   • Beizer Curve
   • Sphere
   • Polygon Table
5. Visible Surface Detection

   • Implementaion of rotation of 3D cube
6. Introduction to OpenGL

   copy the files and make new project for dev for openGL programming

   • Event Driven Programming
   • Point
   • Line
   • Drawing 3D objects
   • Polygon

     • Triangle
     • Rectangle