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Parth1906
GitHub Repository: Parth1906/SPPU-2019-Pattern-SE-COMP-Computer-Graphics-Practicals
 Path: blob/main/5. b) Pattern - Circle in Triangle.cpp
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/*

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5. B) Write a c++ program inscribed and

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circumscribed circles in triangle

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*/

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#include<iostream.H>

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#include<graphics.h>

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#include<stdio.h>

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void ddaAlg(int x1,int y1,int x2,int y2)

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{

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int dx=x2-x1;

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int dy=y2-y1;

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int steps=dx>dy?dx:dy;

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float xInc=dx/(float)steps;

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float yInc=dy/(float)steps;

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float x=x1;

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float y=y1;

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for(int i=0;i<=steps;i++)

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{

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putpixel(x,y,14);

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x+=xInc;

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y+=yInc;

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}

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}

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void display(int xc,int yc,int x,int y)

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{

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putpixel(xc+x, yc+y, 3);

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putpixel(xc-x, yc+y, 3);

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putpixel(xc+x, yc-y, 3);

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putpixel(xc-x, yc-y, 3);

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putpixel(xc+y, yc+x, 3);

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putpixel(xc-y, yc+x, 3);

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putpixel(xc+y, yc-x, 3);

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putpixel(xc-y, yc-x, 3);

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}

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void CircleB(int x1,int y1,int r)

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{

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int x=0,y=r;

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int d=3-2*r;

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display(x1,y1,x,y);

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while(y>=x)

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{

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x++;

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if(d>0)

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{

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y--;

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d=d+4*(x-y)+10;

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}

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else

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{

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d=d+4*x+6;

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}

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display(x1,y1,x,y);

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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,"c:\\turboc3\\bgi");

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CircleB(150,180,57);

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CircleB(150,180,57/2);

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ddaAlg(102,150,198,150);

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ddaAlg(102,150,150,236);

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ddaAlg(150,236,198,150);

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getch();

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closegraph();

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return 0;

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}

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OUTPUT:

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