Create a Figure in Computer Graphics using C++.

By Siddhant prabhakar

C++ language is used in this packet DDA line algorithm is used in this code. Turbro C++ is the compiler used

 

#include
#include
#include
#include
void main()
{
int gd=DETECT,gm;
initgraph(&gd,&gm,"C:\\TURBOC3\\BGI");
setcolor(BLUE);

for(int i=0;i<11;i++)
{
rectangle(250+i,250+i,270-i,350-i);
rectangle(280+i,240-i,380-i,220+i);
rectangle(140+i,220+i,240-i,240-i);
rectangle(250+i,210-i,270-i,110+i);
}
for(i=0;i<16;i++)
{
line(245+i,250-i,275-i,250-i);
line(280-i,245-i,280-i,215+i);
line(240+i,215+i,240+i,245-i);
line(245+i,210+i,275-i,210+i);
}
getch();
}

DDA stands for Digital Differential Analyzer. It is an incremental method of scan conversion of the line. In this method calculation is performed at each step but by using results of previous steps.