C++ Programming Tutorial

 
 
 

Graphics Programming

Quadratic Surfaces

Draw a Sphere using Ellipses Draw a Sphere using Parametric Equations Draw an Ellipsoid using Parametric Equations

Character Generation

Urdu Alphabets using Stroke Method Urdu Alphabets using Matrix Method

Arc

Circular Arc using Trigo. Method Elliptical Arc using Trigo. Method

General Programs

C-Curve of nth order K-Curve of nth order Cubic Bezier Curve Bezier Curve of nth degree Scanfill algorithm Boundary Fill - 8 Connected Point Flood fill algorithm Rotate About Origin Rotate about reference point Scaling about origin Scaling about reference point Polyline translation Reflection in x axis Reflection in y Axis Reflection on any line Midpoint Circle Drawing Bresenhams Line Algorithm (BLA) Generate a pattern Draw a Chess Board Draw a Luddo Board Deterministic Finite Automation for identifier Kurskals algo - Minimum Cost Spanning Tree

Windows Programs

Checkbox like windows Simple windows & buttons Moving message box like windows Text box Graphical Rep. of tower of hanoi Graphical menu - operate it using arrow keys Text animation

Line

Line using Parametric equations Line-Cartesian Slope-Intercept Equation simple imp Line using Cartesian Slope-Intercept Equation Line - BLA - slopes negative and greater than 1 Line - BLA - slopes negative and less than 1 Line - BLA - slopes positive and greater than 1 Line - BLA - slopes positive and less than 1 DDA line drawing algorithm Bresenham line drawing algorithm Cohen sutherland Line clipping algo.

Line Styles

Different kinds of Dashed Lines Different kinds of Thick Lines

Polygons

Draw a Polygon Draw a Triangle Draw a Rectangle Sutherland-Hodgeman Polygon Clipping Algo

Circle

Circle using Trigo. Method Circle using Polynomial Method Circle using Bresenhams Circle algo. Circle using MidPoint Circle algo.

Ellipse

Ellipse using Polynomial Method Ellipse using Trigo. Method Ellipse using MidPoint Ellipse algo.

2D Transformations

Translation Transformation Scaling Transformation Scaling Trans along a Fixed Point Scaling Trans along Arbitrary Direction Rotation Transformation Rotation Trans along a Pivot Point Reflection tran of x-axix, y-axis and w.r.t origin Reflection tran of line y=x and y=-x X-Direction Shear Transformation Y-Direction Shear Transformation

2D Viewing - Clipping

Window-to-Viewport Coordinate Tran Point Clipping Algorithm Cohen-Sutherland Line Clipping Algo Cohen-Sutherland MidPoint Subdivision Line Nicol Lee Nicol algo. for Line Clipping Liang-Barsky Line Clipping Algo Window-to-Viewport Transformaton None-or-All String Clipping Strategy None-or-All Character Clipping Strategy

3D Object Representations

3D object using Polygon-Mesh Rep. 3D object - Translational Sweep Representatiom 3D object - Rotational Sweep Rep.

3D Transformations

3D Rotation Trans along x-axis 3D Rotation Trans along y-axis 3D Rotation Trans along z-axis 3D Reflection Trans along xy-plane 3D Reflection Trans along yz-plane 3D Reflection Trans along zx-plane 3D Shearing Trans along x-axis 3D Shearing Trans along y-axis 3D Shearing Trans along z-axis

Bezier Curves - Surfaces

3D Cubic Bezier Curve 3D Bezier Curve of nth degree 3D Piece-Wise Bezier Curve of nth degree 3D Bezier Surface for MxN control points

Projection

3D objects - Standard Perspective Projection 3D obj - Arbitrary Plane and Center of Projection 3D objects using General Perspective Projection 3D obj-Orthographics Proje Parallel onto xy-plane 3D obj-Cavalier Oblique Parallel prj-xy-plane 3D obj-Cabinet Oblique Parallel prj - xy-plane

Fill Algorithm or Area Filling

Geometric shapes using Boundary Geometric shapes - Boundary - Linked List Geometric shapes using Flood Geometric shapes - Flood - Linked-List Polygon using Scan Line Polygon Rectangle using Scan-Line Rectangle Circle using Scan-Line Circle Circle - Scan-Line Circle - Polar Coordinates
 
 
 # include <iostream.h>
 # include <graphics.h>
 # include    <conio.h>
 # include     <math.h>

 void show_screen( );

 void slope_intercept_line(const int,const int,const int,const int);


 int main( )
    {
       int driver=VGA;
       int mode=VGAHI;

       int x_1=0;
       int y_1=0;

       int x_2=0;
       int y_2=0;

       do
      {
         show_screen( );

         gotoxy(8,10);
         cout<<\"Coordinates of Point-I (x1,y1) :\";

         gotoxy(8,11);
         cout<<\"ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ\";

         gotoxy(12,13);
         cout<<\"Enter the value of x1 = \";
         cin>>x_1;

         gotoxy(12,14);
         cout<<\"Enter the value of y1 = \";
         cin>>y_1;

         gotoxy(8,18);
         cout<<\"Coordinates of Point-II (x2,y2) :\";

         gotoxy(8,19);
         cout<<\"ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ\";

         gotoxy(12,21);
         cout<<\"Enter the value of x2 = \";
         cin>>x_2;

         gotoxy(12,22);
         cout<<\"Enter the value of y2 = \";
         cin>>y_2;

         initgraph(&driver,&mode,\"..\\\\Bgi\");

         setcolor(15);
           slope_intercept_line(x_1,y_1,x_2,y_2);

         setcolor(15);
           outtextxy(110,460,\"Press <Enter> to continue or any other key to exit.\");

         int key=int(getch( ));

         if(key!=13)
        break;
      }
       while(1);

       return 0;
    }



 //------------------------  Funcion Definitions  ------------------------//




 //------------------------  slope_intercept_line( )  --------------------//


 void slope_intercept_line(const int x_1,const int y_1,
                        const int x_2,const int y_2)
    {
       int color=getcolor( );

       float x=x_1;
       float y=y_1;

       float dx=(x_2-x_1);
       float dy=(y_2-y_1);

       float m=(dy/dx);
       float b=(y-(m*x));

       float x_inc=((x_2>=x_1)?1:-1);

       putpixel(x,y,color);

       while((int)(x+0.5)!=x_2)
      {
         x+=x_inc;
         y=((m*x)+b);

         putpixel((int)(x+0.5),(int)(y+0.5),color);
      }
    }


 //--------------------------  show_screen( )  ---------------------------//


 void show_screen( )
    {
       restorecrtmode( );
       textmode(C4350);

       cprintf(\"\\n********************************************************************************\");
       cprintf(\"********************-                                      -********************\");
       cprintf(\"*-------------------- \");

       textbackground(1);
       cprintf(\" Cartesian Slope Intercept Equation \");
       textbackground(8);

       cprintf(\" --------------------*\");
       cprintf(\"*-******************-                                      -******************-*\");
       cprintf(\"*-****************************************************************************-*\");

       for(int count=0;count<42;count++)
      cprintf(\"*-*                                                                          *-*\");

       gotoxy(1,46);
       cprintf(\"*-****************************************************************************-*\");
       cprintf(\"*------------------------------------------------------------------------------*\");
       cprintf(\"********************************************************************************\");

       gotoxy(8,40);
       cout<<\"Note :\";

       gotoxy(8,41);
       cout<<\"ÍÍÍÍÍÍ\";

       gotoxy(10,43);
       cout<<\"This program is better for those lines with é<ñ45ø with x-axis.\";

       gotoxy(1,2);
    }

    Related Post:
  1. Program to show the use of Bitwise Operator AND (&)

  2. Program to multiply 2 polynomial functions

  3. Program to multiply two matrices

  4. Program to illustrate the implementation of Stack as an Arithmetic Expression Evaluater

  5. Program to estimate the Differential value of a given function using Trapezoidal Rule [Predictor-Corrector Scheme (PC2)]

  6. Program to convert a decimal number into binary, octal and pental code

  7. Program to estimate the value of Second Derivative of the function at the given points from the given data using Central Difference Formula order 4

  8. Program to reverse the sequence of the words in the sentence and display the result

  9. Problem you will be analyzing a property of an algorithm whose classification is not known for all possible inputs

  10. Program that take font and background color and text input from a user and display it in center aligned

  11. Program to read a Non-Linear equation in one variable, then evaluate it using Bisection Method and display its kD accurate root

  12. Perform insert, delete, merge and delete multiple occurrences of a number from an array

  13. Program of simple example of class and object

  14. Program to create a circular queue

  15. Program to construct Lagrangess Interpolation Formula from the given distinct data points.

  16. Program to perform heap sort

  17. Tic-Tac-Toe game

  18. Program to read a Non-Linear equation in one variable, then evaluate it using Newton-Raphson Method and display its kD accurate root

  19. Program to illustrate unary operator increment operator overloading with return type

  20. Program to illustrate the use of nested structures