CG/Assignment B-5b (Hilbert Curve).cpp

57 lines
1.0 KiB
C++

/*
Problem Statement: b) Write C++ program to generate Hilbert curve using concept of fractals.
Code from Computer Graphics (SPPU - Second Year - Computer Engineering - Content) repository on KSKA Git: https://git.kska.io/sppu-se-comp-codes/CG
*/
// BEGINNING OF CODE
#include<iostream>
#include<graphics.h>
#include<math.h>
#include<cstdlib>
using namespace std;
void move(int j, int h, int &x,int &y) {
if(j==1) {
y-=h;
}
else if(j==2) {
x+=h;
}
else if(j==3) {
y+=h;
}
else if(j==4) {
x-=h;
}
lineto(x,y);
}
void hilbert(int r,int d,int l ,int u,int i,int h,int &x,int &y) {
if(i>0) {
i--;
hilbert(d,r,u,l,i,h,x,y);
move(r,h,x,y);
hilbert(r,d,l,u,i,h,x,y);
move(d,h,x,y);
hilbert(r,d,l,u,i,h,x,y);
move(l,h,x,y);
hilbert(u,l,d,r,i,h,x,y);
}
}
int main() {
int n,x1,y1;
int x0=50,y0=150,x,y,h=10,r=2,d=3,l=4,u=1;
cout<<"Give the value of n=";
cin>>n;
x=x0;
y=y0;
int driver=DETECT,mode=0;
initgraph(&driver,&mode,NULL);
moveto(x,y);
hilbert(r,d,l,u,n,h,x,y);
delay(10000);
closegraph();
return 0;
}
// END OF CODE