2D ROTATION

2D ROTATION

       AIM:

                        To write a program to implement 2D transformation as rotation

      ALGORITHM:

·         Declare the header file

·         Declare the variables and values

·         Using the graphics function create an image to implement the 2D Rotation

·         Print the output of 2D image rotation

·         Stop the program

  

CODINGS:

#include<stdio.h>

#include<math.h>

#include<conio.h>

#include<graphics.h>

void main()

{

int gd=DETECT,gm;

int a1,a2,a3,a4,a5,b1,b2,b3,b4,b5;

float q;

int x1,x2,x3,x4,x5,y1,y2,y3,y4,y5;

initgraph(&gd,&gm,"");

x1=50;y1=50;x2=100;y2=50;x3=x1;

y3=x2;x4=x1+x2;y4=x2;

clrscr();

cleardevice();

line(x1,y1,x2,y2);

line(x1,y1,x3,y3);

line(x3,y3,x4,y4);

line(x4,y4,x2,y2);

printf("Enter Q:");

scanf("%f",&q);

q=(3.14/180)*q;

a1=x1*cos(q)+y1*sin(q);

a2=x2*cos(q)+y2*sin(q);

a3=x3*cos(q)+y3*sin(q);

a4=x4*cos(q)+y4*sin(q);

b1=x1*-sin(q)+y1*cos(q);

b2=x2*-sin(q)+y2*cos(q);

b3=x3*-sin(q)+y3*cos(q);

b4=x4*-sin(q)+y4*cos(q);

line(a1+150,b1+150,a2+150,b2+150);

line(a1+150,b1+150,a3+150,b3+150);

line(a3+150,b3+150,a4+150,b4+150);

line(a4+150,b4+150,a2+150,b2+150);

getch();

}

                                                            

OUTPUT:

 Enter q:90

RESULT:

           

            Thus, the program has been successfully executed & output is verified