The Midpoint Circle Algorithm (MPC) is an efficient way to draw a circle using raster graphics. It is an improved version of Bresenham’s circle drawing algorithm and avoids using floating-point calculations, making it faster for computer graphics. This blog post explains a C++ program that implements the Midpoint Circle Algorithm using the graphics.h library.
Tag Archives: C++
Implementing Midpoint Ellipse Algorithm in C++
Ellipses are fundamental shapes in computer graphics, widely used in various applications such as image processing, animation, and CAD systems. In this blog post, we’ll explore how to draw an ellipse using the Midpoint Ellipse Algorithm in C++ with graphics.h.
Introduction to Midpoint Ellipse Algorithm
The Midpoint Ellipse Algorithm is an efficient way to generate an ellipse using only integer operations. It is based on the midpoint method, which determines the next pixel position by evaluating a decision parameter.
This algorithm divides the ellipse into two regions:
- Region 1: The slope of the curve is less than 1.
- Region 2: The slope of the curve is greater than 1.
Each region is processed separately to ensure a smooth curve.
C++ Code Implementation
Below is the C++ program that implements the Midpoint Ellipse Algorithm. It uses the graphics.h library, which is part of the Turbo C++ environment.
Continue reading Implementing Midpoint Ellipse Algorithm in C++Implementing Flood Fill Algorithm in C++
Here is implementation of flood fill algorithm in C++.
C++ Program to Implement DDA Line Drawing Algorithm
The Digital Differential Analyzer (DDA) algorithm is one of the simplest line-drawing algorithms in computer graphics. It is an incremental method that determines intermediate points between two given endpoints of a line. In this blog post, we will explore the DDA algorithm, understand its working, and implement it using C++.
What is the DDA Algorithm?
The DDA (Digital Differential Analyzer) algorithm is a rasterization algorithm used to draw lines on a pixel-based display. It works by calculating the intermediate points that form a straight line between two given points and plotting them sequentially. The algorithm uses floating-point arithmetic to incrementally determine the next pixel position.
Steps of the DDA Algorithm:
- Calculate the change in x (
dx) and y (dy) between the starting and ending points. - Determine the number of steps required for the line. This is the greater value between
dxanddy. - Compute the increment values
dx/stepsanddy/stepsto determine how much x and y should increase per step. - Start from the initial point and iteratively plot the next points by adding the increment values.
- Stop when the endpoint is reached.
C++ Implementation of DDA Algorithm
Here is a simple C++ program to implement the DDA line drawing algorithm using the graphics.h library:
Continue reading C++ Program to Implement DDA Line Drawing AlgorithmC++ Program to Implement Cohen Sutherland Algorithm
Here is the implementation of Cohen Sutherland Algorithm in C++.
Continue reading C++ Program to Implement Cohen Sutherland AlgorithmTo Implement Character Generation by using Bitmap Method in C++
Here is the implementation of Character Generation by using bitmap method in C++.
Continue reading To Implement Character Generation by using Bitmap Method in C++Mix (C++ and Assembly) Program to Sort Numbers in Descending Order
This post demonstrates how to sort an array of integers using inline assembly in C++. We use basic comparison and swap logic in assembly embedded within a C++ program.
#include<iostream.h>
#include<conio.h>
void main()
{
int a[5], x, y;
int i, j;
cout << "\n Enter 5 Numbers:";
for(i = 0; i < 5; i++)
{
cin >> a[i];
}
//Sorting
for(i = 0; i < 4; i++)
{
for(j = 0; j < 4; j++)
{
x = a[j];
y = a[j + 1];
asm {
mov ax, x
mov bx, y
cmp ax, bx
jge nxt
mov cx, ax
mov ax, bx
mov bx, cx
mov x, ax
mov y, bx
}
nxt:
a[j] = x;
a[j + 1] = y;
}
}
cout << "\n Sorted Array:";
for(i = 0; i < 5; i++)
cout << a[i] << " ";
getch();
}