Advanced Programming Course - HW5

Homework 5 - Fall 2022 Semester
Deadline: Yekshanbe 11 day - 11:59 pm

Outline

This homework has 2 parts:

• In the first part, we are going to work with classes and inheritance in python. this part will be implemented using the docker and the Dockerfile.
• In the second part of the homework we will work with matplotlib in python. This part should be implemented without docker and directly on your own system.

Python Class and Inheritance

In this section we will implement a class for basic geometry shapes. write your codes for this part in src/shape.py.

Point class

This class represents a point in a 2D plane.

class Point:
    def __init__(self, x:float, y:float) -> None:
        pass

store the x and y variables in the class. and then define the following member fnuctions.

• print function
  Make arrangements so that you will be able to print an instance of Point class. the output should be like this:

   x: 2.5, y: 3

• +/- operator
  Make arrangements so you can add or subtract 2 points. i.e. tests 2 and 3 should work properly.

• length
  define a function called length and return the length of the line connecting origin to the point.

Shape class

This class represents any shape in a 2D plane.

class Shape:
    def __init__(self) -> None:
        self.vertices = []

All shapes are made different vertices. the vertices member variable is responsible to store them. define the following member functions for the Shape class.

• add_vertex
  This member function adds an vertex to our shape.

   def add_vertex(self, p:Point) -> None:
       pass

• print function
  Make arrangements so that you will be able to print an instance of Shape class. only print out the number of vertices of the class:

   number of vertices: 3

• perimeter
  returns the perimeter of our shape.

   def perimeter(self) -> float:
       pass

Line class

This class represents a line in a 2D plane and inherits from the Shape class.

class Line(Shape):
    def __init__(self, p1:Point, p2:Point) -> None:
        pass

A line will have 2 vertices which we gets them from the Line constructor. DO NOT add any member variables for this class.

• print function
  Make arrangements so that you will be able to print an instance of Line class. The output should be something like:

   Line:
   	p1: (x: -1, y: 2)
   	p2: (x: 1, y: 4)

• area
  returns the area of our shape which is always 0.

   def area(self) -> float:
       pass

Triangle class

This class represents a triangle in a 2D plane and inherits from the Shape class.

class Triangle(Shape):
    def __init__(self, p1:Point, p2:Point, p3:Point) -> None:
        pass

A line will have 3 vertices which we gets them from the Triangle constructor. DO NOT add any member variables for this class.

• print function
  Make arrangements so that you will be able to print an instance of Triangle class. The output should be something like:

   Triangle:
   	p1: (x: 0, y: 0)
   	p2: (x: 0, y: 3)
   	p3: (x: 4.1, y: 0)

• area
  returns the area of our triangle.

   def area(self) -> float:
       pass

Rectangle class

This class represents a rectangle in a 2D plane and inherits from the Shape class.

class Rectangle(Shape):
    def __init__(self, p1:Point, p2:Point) -> None:
        pass

A line will have 4 vertices. we can construct these vertices using only the top-left and bottom-right vertices which we will get them from the constructor. DO NOT add any member variables for this class.

• print function
  Make arrangements so that you will be able to print an instance of Rectangle class. The output should be something like:

   Rect:
   	p1: (x: 0, y: 0)
   	p2: (x: 2, y: 0)
   	p3: (x: 2, y: 2)
   	p4: (x: 0, y: 2)

• area
  returns the area of our rectangle.

   def area(self) -> float:
       pass

Matplotlib

Using the image in resources/image.jpg implement the following plot using matplotlib in src/daemon_figure.py and show the figure at the end. (see resources/image.gif if following plot is not loading)

Finally

Please do not alter other files already populated except otherwise indicated. only write your code in src/shape.py and src/daemon_figure.py files.

GOOD LUCK