Beizur Curve

#include<iostream.h>
#include<conio.h>
#include<graphics.h>
void bezier();
void main()
{
int driver,mode;
driver=DETECT;
initgraph(&driver,&mode,”c:\\tc\\bgi”);
bezier();
}

void bezier()
{
float p1[3],p2[3],p3[3],p4[3],temp[3];
cout<<“\n enter the coords of P1 \n”;
cin>>p1[0]>>p1[1]>>p1[2];
cout<<“\n enter the coords of P2 \n”;
cin>>p2[0]>>p2[1]>>p2[2];
cout<<“\n enter the coords of P3 \n”;
cin>>p3[0]>>p3[1]>>p3[2];
cout<<“\n enter the coords of P4 \n”;
cin>>p4[0]>>p4[1]>>p4[2];
temp[0]=p1[0]; temp[1]=p1[1]; temp[2]=p1[2];
cleardevice();
for(float t=.001;t<=1;t+=.001)
{
temp[0]=(1-t)*(1-t)*(1-t)*p1[0] + (3*t*(1-t)*(1-t))*p2[0] + ((3*t*t)*(1-t))*p3[0] + ((t*t*t))*p4[0];
temp[1]=(1-t)*(1-t)*(1-t)*p1[1] + (3*t*(1-t)*(1-t))*p2[1] + ((3*t*t)*(1-t))*p3[1] + ((t*t*t))*p4[1];
temp[2]=(1-t)*(1-t)*(1-t)*p1[2] + (3*t*(1-t)*(1-t))*p2[2] + ((3*t*t)*(1-t))*p3[2] + ((t*t*t))*p4[2];
putpixel(temp[0],temp[1],BLUE);
}
setcolor(WHITE);
/* line(p1[0],p1[1],p2[0],p2[1]);
line(p2[0],p2[1],p3[0],p3[1]);
line(p3[0],p3[1],p4[0],p4[1]);
line(p1[0],p1[1],p4[0],p4[1]); */
getch();
}