56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
/*
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Problem Statement: c) Write C++ program to generate fractal patterns by using Koch curves.
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Code from Computer Graphics (SPPU - Second Year - Computer Engineering - Content) repository on KSKA Git: https://git.kska.io/sppu-se-comp-codes/CG
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*/
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// BEGINNING OF CODE
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#include<iostream>
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#include<graphics.h>
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#include<cmath>
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using namespace std;
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void koch(int x1,int y1,int x2,int y2,int it)
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{
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float angle = (60*3.14)/180;
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int x3 = (2*x1 + x2)/3;
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int y3 = (2*y1 + y2)/3;
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int x4 = (2*x2 + x1)/3;
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int y4 = (2*y2 + y1)/3;
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int x = x3+ (x4-x3)*cos(angle) + (y4-y3)*sin(angle);
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int y = y3 - (x4-x3)*sin(angle) + (y4-y3)*cos(angle);
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if(it>0)
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{
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koch(x1,y1,x3,y3,it-1);
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koch(x3,y3,x,y,it-1);
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koch(x,y,x4,y4,it-1);
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koch(x4,y4,x2,y2,it-1);
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}
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else
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{
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line(x1,y1,x3,y3);
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line(x3,y3,x,y);
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line(x,y,x4,y4);
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line(x4,y4,x2,y2);
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}
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}
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int main()
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{
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int gd = DETECT,gm;
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initgraph(&gd,&gm,NULL);
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int x1,y1,x2,y2,order;
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cout<<"Enter value of x1: ";
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cin>>x1;
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cout<<"Enter value of y1: ";
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cin>>y1;
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cout<<"Enter value of x2: ";
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cin>>x2;
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cout<<"Enter value of y2: ";
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cin>>y2;
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cout<<"Enter order of curve: ";
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cin>>order;
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koch(x1,y1,x2,y2,order);
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delay(10000);
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return 0;
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}
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// END OF CODE
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