Rotating Wheel on Inclined Plane

Program : Rotating Wheel on Inclined Plane

#include <graphics.h>

#include <stdlib.h>

#include <stdio.h> //header file inclusion

#include <conio.h>

#include <math.h>

int main(void) //main function

{

int gdriver = DETECT, gmode, errorcode,x1,y1,x2,y2,m,x,y; //variable initializations

int stepx,stepy, no_of_steps,i;

initgraph(&gdriver, &gmode, "D:\\TC\\"); //initializing graphics window

errorcode = graphresult();

if (errorcode != grOk) //an error occurred

{

printf("Graphics error: %s\n", grapherrormsg(errorcode));

printf("Press any key to halt:");

getch();

exit(1); //return with error code

}

x1=10;

y1=300;

x2=300; //initializing inclined plane

y2=10;

m=(float)(y2-y1)/(x2-x1); //computing slope

setcolor(BLUE);

line(x1+140,x2,y1+140,y2); //draw line for plane

x=x1+140;y=y1+140;

i=0;

no_of_steps=abs(y2-y1);

while(i<no_of_steps) //while not bottom

{

y1=y1+m;

x1=x1+1; //updating coordinates

setcolor(RED);

line(x1,y1,x1+100*cos(3.14*i/180),y1+100*sin(3.14*i/180));

line(x1,y1,x1-100*cos(3.14*i/180),y1-100*sin(3.14*i/180));

circle(x1,y1,100); //draw wheel

delay(20);

setcolor(0);

line(x1,y1,x1+100*cos(3.14*i/180),y1+100*sin(3.14*i/180));

line(x1,y1,x1-100*cos(3.14*i/180),y1-100*sin(3.14*i/180));

circle(x1,y1,100); //rolling wheel

delay(20);

i++;

setcolor(RED);

line(x,x2,y,y2); //draw line

}

closegraph();

return 0; //terminate

}