computer-graphics-programs/cg3.cpp at main · princethakur931/computer-graphics-programs · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
#include<iostream>
#include<graphics.h>
#include<math.h>
using namespace std;
void drawcircle(int xc, int yc, int r)
{
 int d=3-2*r;

 int x=0;
 int y=r;
 while (y >= x)
 {
 putpixel(xc+x,yc+y,15);
 putpixel(xc+y,yc+x,15);
 putpixel(xc+y,yc-x,15);
 putpixel(xc+x,yc-y,15);
 putpixel(xc-x,yc-y,15);
 putpixel(xc-y,yc-x,15);
 putpixel(xc-y,yc+x,15);
 putpixel(xc-x,yc+y,15);
 x++;

 if (d>0)
 {
 y--;
 d=d+4*(x-y)+10;
 }
 else
 {
 d=d+4*x+6;
 }

 delay(10);
 }
}
void drawline(float x1,float y1,float x2,float y2)
{
 float dx,dy,steps,x,y,xinc,yinc;

 dx=abs(x2-x1);
 dy=abs(y2-y1);

 if(dx>dy)
 steps=dx;
 else
 steps=dy;

 xinc=(x2-x1)/steps;
 yinc=(y2-y1)/steps;

 x=x1;
 y=y1;

 putpixel(round(x),round(y),15);

 for(int k=0;k<steps;k++)
 {
 x=x+xinc;
 y=y+yinc;
 putpixel(round(x),round(y),15);
 }
}
int main()
{
 int gd=DETECT, gm;
 initgraph(&gd,&gm,NULL);
 int x,y,r;
 float x1,y1,x2,y2,x3;
 cout<<"ENTER COORDINATES : ";
 cout<<"X1 : ";
 cin>>x1;
 cout<<"Y1 : ";
 cin>>y1;
 cout<<"X2 : ";
 cin>>x2;
x3=(x2+x1)/2; // x-coordinate of Third point of tringle
 // x3=(x2-x1)/2+x1;
 y2=y1-sqrt(pow((x2-x1),2)-pow((x2-x1)/2,2)); // y-coordinate of Third point of
 drawline(x1,y1,x2,y1);
 drawline(x2,y1,x3,y2);
 drawline(x1,y1,x3,y2);
 x=x3; // x-coordinate of center of a circle
 y=y2+2*(y1-y2)/3; // y-coordinate of center of a circle
 r=(y1-y2)/3; //Radius of inner circle
 drawcircle(x,y,r);
 r=2*(y1-y2)/3; //Radius of outer circle
 drawcircle(x,y,r);

 delay(50000);
 closegraph();
 return 0;
}