61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
/*
|
|
Problem Statement: a) Write C++ program to generate snowflake 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<cmath>
|
|
using namespace std;
|
|
|
|
void koch(int x1,int y1,int x2,int y2,int it)
|
|
{
|
|
float angle = (60*3.14)/180;
|
|
int x3 = (2*x1 + x2)/3;
|
|
int y3 = (2*y1 + y2)/3;
|
|
int x4 = (2*x2 + x1)/3;
|
|
int y4 = (2*y2 + y1)/3;
|
|
int x = x3 + (x4-x3)*cos(angle) + (y4-y3)*sin(angle);
|
|
int y = y3 - (x4-x3)*sin(angle) + (y4-y3)*cos(angle);
|
|
if(it>0)
|
|
{
|
|
koch(x1,y1,x3,y3,it-1);
|
|
koch(x3,y3,x,y,it-1);
|
|
koch(x,y,x4,y4,it-1);
|
|
koch(x4,y4,x2,y2,it-1);
|
|
}
|
|
else
|
|
{
|
|
line(x1,y1,x3,y3);
|
|
line(x3,y3,x,y);
|
|
line(x,y,x4,y4);
|
|
line(x4,y4,x2,y2);
|
|
}
|
|
}
|
|
|
|
int main()
|
|
{
|
|
int gd = DETECT,gm;
|
|
initgraph(&gd,&gm,NULL);
|
|
int x1,y1,x2,y2,order;
|
|
float angle = (60*3.14)/180;
|
|
cout<<"Enter value of x1: ";
|
|
cin>>x1;
|
|
cout<<"Enter value of y1: ";
|
|
cin>>y1;
|
|
cout<<"Enter value of x2: ";
|
|
cin>>x2;
|
|
cout<<"Enter value of y2: ";
|
|
cin>>y2;
|
|
cout<<"Enter order of curve: ";
|
|
cin>>order;
|
|
int x3 = x1 + (x2-x1)*cos(angle) + (y2-y1)*sin(angle);
|
|
int y3 = y1 - (x2-x1)*sin(angle) + (y2-y1)*cos(angle);
|
|
koch(x2,y2,x1,y1,order);
|
|
koch(x1,y1,x3,y3,order);
|
|
koch(x3,y3,x2,y2,order);
|
|
delay(10000);
|
|
return 0;
|
|
}
|
|
// END OF CODE
|