Pie Chart

Pie Chart

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<math.h>
void main()
{
    int gd=DETECT,gm;
    int midx,midy,dx,dy,i,value[20],n,degree=0,top,left;
    long start,end;
    char str[5];
    initgraph(&gd,&gm,"C:\\TC\\BGI");
    cleardevice();
    printf("enter the no of slices\n");
    scanf("%d",&n);
    setcolor(MAGENTA);
    rectangle(0,40,639,450);
    settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
    setcolor(WHITE);
    outtextxy(275,10,"PIE CHART");
    midx=getmaxx()/2;
    midy=getmaxy()/2;
    start=end=0;
    value[0]=0;
    printf("enter the percentage\n");
    for(i=1;i<=n;i++)
    {
        scanf("%d",&value[i]);
        degree=degree+((long)value[i]*360)/100;
        if(degree>360)
        {
        printf("percentage more than 100 % ...program\n");
            getch();
            exit(0);
        }

    }
    if(degree<360)
        {
         printf("percentage less than 100 % ...program\n");
         getch();
         exit(0);
         }
    for(i=0;i<n;i++)
    {
        end=start+(long)(value[i+1]*360)/100;
        setfillstyle(i+1,i+1);
        pieslice(midx,midy,start,end,200);
        itoa(value[i+1],str,10);
        dx=midx+200*cos(((double)(start+end)/2)*(3.14f/180));
        dy=midy+200*sin(((-1)*(double)(start+end)/2)*(3.14f/180));
        outtextxy(dx,dy,str);
        start=start+((long)value[i+1]*360)/100;
        getch();
    }
getch();
closegraph();
}

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