# Program for Rotation of Line in C

September 15, 2012 C, Graphics 19,223 Views

Program for Rotation of Line in C

#include<stdio.h>
#include<graphics.h>
void main()
{
int gd=DETECT,gm;
int x1,y1,x2,y2 ;
float b1,b2;
float t,deg;
initgraph(&gd,&gm,”c:\\tc\\”);
printf(“Enter the coordinates of Line \n”);
scanf(“%d%d%d%d”,&x1,&y1,&x2,&y2);
setcolor(6);
line(x1,y1,x2,y2);
getch();
//cleardevice();
printf(“Enter the angle of rotation: “);
scanf(“%f”,°);
t=(22*deg)/(180*7);
b1=abs((x2*cos(t))-(y2*sin(t)));
b2=abs((x2*sin(t))+(y2*cos(t)));
line(x1,y1,b1,b2);
getch();
closegraph();
}

## OUTPUT

Rotation of Line in C 2012-09-15