Ask Programming Language Expert

The Problem and Requirements

In this Project your task is to create a program that displays various levels of the fractal structure of the so called square shaped Sierpinski-carpet. The display of level 4 is shown below:

503_square shaped Sierpinski-carpet.jpg

  • GUI has two buttons to control level, one of them increases, the other decrease this parameter. The buttons are hosted by the panel at the NORTH region. Approximate fractal is shown at the CENTER region.
  • To draw a given level all the smaller levels down to 1 must also be drawn, each four times on the divided smaller squares, hence a recursive drawing method must be implemented.
  • Level 1 is just a yellow background square with no dividing blue strips. At level 2 the yellow square appears to be divided into four smaller squares by the vertical and a horizontal strip colored blue.
  • At each step to the next level each yellow square is further divided by narrower blue strips.
  • The size of the blue strips is always decreased by same proportion.
  • Increase the level until yellow regions disappear and take note of the highest level at which yellow is still visible.

Analysis and Design
You have to define two classes: Fractal and Application for this program.
Fractal

  • This class is responsible for the GUI (the frame and the graphics) and for running the recursive drawFractal( ) method.
  • Fractal extends JFrame and implements ActionListener.
  • Fractal has an inner class Centerthat extends JPanel. It represents the center panel and the graphics on it. The innerclass implements the paint method which in turn calls the drawFractal( ) method.
  • Data fields (suggested) :

i) num, denom; publicintegers for the numerator and denominator of the shrinkage ratio

ii) point; a Point reference variable. Point is class in java.awt with two public int fields x and y. Point objects make it easier to reference points on the screen. Being public, direct references point.x and point.y are available for the coordinates; point always identifies the upper left corner of the current (sub)square in the fractal

iii) width, hight; int variables for the dimensions of the current square in the fractal (NOT the dimensions of the frame)

iv) level; int to store the fractal level
v) up, down; JButtons

  • Methods:

i) changeFractal( ) ; sets the title of the whole frame showing the current level; instantiates a Center object (inner class) and adds the object to the pane; calls setVisible( )
ii) actionPerformed( ); mandatory for the buttons; adjusts the level value according to the button clicks and calls changeFractal( )
iii) makeWindow( ) builds and displays frame as shown on a template (without the colored fractal); registers the buttons; use 700, 800 when you set the size
iv) drawFractal( ); takes five parameters as follows: a Graphics reference, a Point reference, integers for level, width and height; the method needs three local variables for Point references: top, side, inside. These reference the upper left corners of the three new smaller squares at the upper right, lower left and lower right positions. Having the three new points and the width and length values determined according to the shrinkage ratio, the method calls itself four times using the four new sets of parameters. Note that the upper left corner of the upper left square is the same as the point reference of the caller method. Do not forget to handle the base case and the coloring
v)
Constructor; takes four parameters to initialize the Point object, width, length and level; calls the makeWindow( ) method

 Application:

This class has the main method where you:

  • declare and instantiate a Fractal object; initialize the fields with the parameters new Point(60,60), 600, 600, 0

  • initializenum and denom to 9 and 20.

 Documentation and Style:

The program should conform with the Java Documentation and Style Requirements as set by the Computer Science Department. Emphasis will be placed on having the required banner and internal comments, indentation, and overall professional appearance. Comments must be clearly written with correct grammar and spelling.

Programming Language, Programming

  • Category:- Programming Language
  • Reference No.:- M9296

Have any Question? 


Related Questions in Programming Language

Assignment - haskell program for regular expression

Assignment - Haskell Program for Regular Expression Matching Your assignment is to modify the slowgrep.hs Haskell program presented in class and the online notes, according to the instructions below. You may carry out th ...

Assignment task -q1 a the fibonacci numbers are the numbers

Assignment Task - Q1. (a) The Fibonacci numbers are the numbers in the following integer sequence, called the Fibonacci sequence, and are characterised by the fact that every number after the first two is the sum of the ...

Question - create a microsoft word macro using vba visual

Question - Create a Microsoft Word macro using VBA (Visual Basic for Applications). Name the macro "highlight." The macro should highlight every third line of text in a document. (Imagine creating highlighting that will ...

Assignmentquestion onegiving the following code snippet

Assignment Question One Giving the following code snippet. What kind of errors you will get and how can you correct it. A. public class HelloJava { public static void main(String args[]) { int x=10; int y=2; System.out.p ...

Assignment - proposal literature review research method1

Assignment - Proposal, Literature Review, Research Method 1. Abstract - Summary of the knowledge gap: problems of the existing research - Aim of the research, summary of what this project is to achieve - Summary of the a ...

1 write a function named check that has three parameters

1. Write a function named check () that has three parameters. The first parameter should accept an integer number, andthe second and third parameters should accept a double-precision number. The function body should just ...

Assignment - horse race meetingthe assignment will assess

Assignment - Horse Race Meeting The Assignment will assess competencies for ICTPRG524 Develop high level object-oriented class specifications. Summary The assignment is to design the classes that are necessary for the ad ...

Task silly name testeroverviewcontrol flow allows us to

Task: Silly Name Tester Overview Control flow allows us to alter the order in which our programs execute. Building on our knowledge of variables, we can now use control flow to create programs that perform more than just ...

Structs and enumsoverviewin this task you will create a

Structs and Enums Overview In this task you will create a knight database to help Camelot keep track of all of their knights. Instructions Lets get started. 1. What the topic 5 videos, these will guide you through buildi ...

Task working with arraysoverviewin this task you will

Task: Working with Arrays Overview In this task you will create a simple program which will create and work with an array of strings. This array will then be populated with values, printed out to the console, and then, w ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As