54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
/*
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Digital Differential Analyzer (DDA) algorithm for drawing a line.
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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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using namespace std;
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int main()
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{
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float x1,x2,y1,y2,dx,dy,xin,yin,x,y,len;
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cout << "Enter the value of x1:\t";
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cin >> x1;
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cout << "Enter the value of x2:\t";
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cin >> x2;
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cout <<"Enter the value of y1:\t";
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cin >> y1;
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cout << "Enter the value of y2:\t";
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cin >> y2;
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int gd=DETECT,gm;
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initgraph(&gd,&gm,NULL);
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dx=x2-x1;
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dy=y2-y1;
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if (abs(dx)>=abs(dy))
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len=abs(dx);
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else
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len=abs(dy);
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xin=dx/len;
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yin=dy/len;
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x = x1+0.5;
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y = y1+0.5;
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int i = 0;
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while(i<=len)
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{
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if(i%2==0)
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putpixel(x,y,GREEN);
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x = x+xin;
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y = y+yin;
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i++;
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}
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delay(50000);
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closegraph();
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return (0);
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}
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// END OF CODE
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