Assignment #9: Set Operation - Given a class for rectangle as follows;

class Rectangle {

Point *bottomLeft, *upperRight;

bool isEmpty; // true if empty rectangle, false otherwise

public:

Rectangle();

Rectangle(int, int, int, int);

Rectangle(Point, Point);

friend istream& operator>>(istream&, Rectangle&);

Rectangle operator+(const Rectangle&);

Rectangle operator-(const Rectangle&);

// add other member functions if necessary

};

class Point {

int x, y;

public:

int readX();

int ready();

};

Implement class Rectangle and Point. Note

1. the + operator produces the MBR (Minimum Bounding Rectangle of two operand rectangles) and – operator yields the intersection of two rectangles or an empty rectangle (isEmpty=true) if no intersection is found.

2. Input stream >> operator receives four integer coordinates as x1, y1, x2, y2, where x1<=x2 and y1<=y2.

Oral test at the lab on May 3rd.

[Download lab.pptx]