05-11 Lab exercise 2: 3D points class inherited from 2D point class

Question

Suppose we have the following two points in a 3D space:

The distance between point1 and point2 is:

Please create ThreeD class inherited from Point class which is used in previous exercise and then use ThreeD class to calculate the distance between two 3D points.

Hint:

• Add two more public functions to Point class to get the value of X and Y
• ThreeD initialize: 

• class ThreeD:public Point

• The following constructor of ThreeD class reuses the constructor of the Point class and the only way values can be passed to the Point constructor is via the use of a member initialization list.

• ThreeD(double i, double j, double k):Point(i,j){z = k;}

   

Example input:

1 1 1
2 3 4

Example output:

Distance is: 3.74166

Comments

Called for Help

Answer 1

Hidden content!
#include <iostream>

#include<math.h>

using namespace std;



class ThreeD
** *** ** * * ** * ** *
*** * * ** *** * * * *** *
*** * **** ** *** * * * * ** * * ** *** x,y,z;
* ******** *** ** ****
***** ** ** **** * ** ** * ** * *** * * * ** ** i, double j, double k);
**** * ** * * **** * ****** *** * ** *** *** * dist(ThreeD other);
**** * * ***** * *** ** ** * * ** ***** * * **** * * * *** getx();
** ** *** * ******* *** ****** * **** **** gety();
* * *** * ** *** * ** * * ***** * * **** * getz();
* * * ** ********* ** *

ThreeD::ThreeD(double i, double j, double k)

{
* * *** ** ** ** * **
** * * * ** * * * * *
* * * ** ******* ** * ***

}

double ThreeD::getx()

{
* ****** *** * * ** ** ** x;

}

double ThreeD::gety()

{
**** * * * * * * * y;

}

double ThreeD::getz()

{
** * * * ** * *** * *** ** z; * * * ****** ** * * ** * * ** * **** * ***** * *

}



void ThreeD::dist(ThreeD other)

{
**** ** ** *** *** ** * sol;
* * **** ** * * * * * x2,y2,z2;
* * *** **** * *** * ** ** * *** * * ***** *
* ** **** ** **** * * **** ** * * * *** *
** * * * ** * * * * *** ** ** ** * ** *** *
** * * ***** ** * * * **
* ** * * ** ** ** * * * *
* ** * ******* * ** * *** * *** *** is: **** * ** *** *** **



}

int main()

{


*** ** ******** **** ** i,j,k;
** ** *** ** * ** ** * ** *** ******* * * * *
* * * * ** ***** * ** ** * ** a(i,j,k);
* * * ** ** * ** * ***** **** ** * * * * * *
* *** * ** * * *** *** * * b(i,j,k);
*** ** *** * ***** * * *


* ** *** ** * * ** * 0;

}

Answer 2

Hidden content!
* ** * * * * * * **
* *** ** * * ** *****
* * * *****
** * * ** ****** *



using *** std;



class Point{
****** * **
* **** * **** ** *** **
** **** ** * * * * * ** * * * xpos, double ypos, double zpos);
** ** **** * * * * *
**** * ** ** ** ** ******* *** **
* *** * * * ** *** * * * **
*** ** * **** * * ** * ** xpos, double ypos, double zpos);
* * *** * ** **** **
* * *** *** ** * *** * x;
** * * * ** ** ** ** * * * y;
** *** * ** *** ** ***** ** z;

};


** ** *

{
* * * **** * * *** * * = 0;
*** * *** ** * ** * * = 0;
*** *** *** ** **** *** = 0;

}


**** ** * * * xpos, double ypos, double zpos)

{
** ***** * * * * ** = xpos;
* *** * ** * *** * = ypos;
* * *** ** ** * ** ** = zpos;

}


* ** * *

{
*** * *** * ** * *** ** * x;

}


* * *** **

{
* * ** ** *** *** ** * * * y;

}


* **** * **

{
** ** * * * ** * * ** * z;

}



void ** * ** * xpos, double ypos, double zpos)

{
* * * * * * **** * = xpos;
*** * * ** *** *** = ypos;
* *** * * * *** *** * = zpos;

}


* * ** *
* *** * ** **
** * *** *** * * * * ** * *** * * Apos, Point Bpos);
** * * ** ** * * ** * **
* *** ** *** * *
** * * *** ** * ** *** A;
*** **** * * **** B;

};


* ** ** * Apos, Point Bpos)

{
* **** ** * * * * * ****** * * ** * * * *** ****
* * * * * ** ******* *** ** * * * *** * **

}


* * *

{
* ****** ** *** ** ** * * * * ***** * - ** *** 2.0) + * *** ** - ** * * 2.0) + **** * * - ** * 2.0));

}



int main()

{
******** * * * ** *** * * * ax, ay, az, bx, by, bz;


* ** * ** *** ** * * * ** * ax *** * ** ay **** * az * ***** *** bx ** * * by * **** **** bz;
* * *** *** * * ** * *** * * ** A(ax, ay, az);
* ** * * * ** *** * * * * ** B(bx, by, bz);


***** * * * * * ** Z(A, B);


** ** * ** ** ***** ** * ** * * * * * is: * * *** * ** ** * * ** ** ** *** ** endl;


** * * * * * * ** *** 0;

}

Comments

This is not correct answer. We require ThreeD class is inherited from Point class which is used in previous exercise

Answer 3

Hidden content!
class Point

{
*** *** ** *** * * **
* * ** ** * * ** * ******* x, y; // x and y * * *** *
* ** * * ** * **** **

* ** * * **** ** * * *** ***** * * *** inline ** * of ** ** **
***** * * * ** ** * **** * i, double ** * y(j){}

** ** *** * * *** *
* * ** ** ********* ** inline * *** *** * of member * * **
* * * ** * * ** **** * ** * = NewX;}
* ** ** * ** ** *** * * ** * * * = NewY;}
**** * ** ** *** ****** getX() const * x;}
**** * ** **** * * ** * getY() const ** y;}

};



class ** ** Point

{
***** * ** * * ** ** * **
* ** * * * *** * * ** **** ****** **** * z;
****** *** * **

* **** **** **** * * * ** * ** * ** *** * * * Inline * ** * of * * * *
* * ** ** * ** * * ** * * * of the base class is not ******
* * * * * *** * * *** The * ** * * * of ThreeD class reuses the

*** * ***** *** ** * ** of the Point class and the only way
* ****** ****** * ***** ** can be * to the Point *** is via the use
* * *** ** * *** ***** ** of a ** **** * list.
*** ** * * **** * * ***** ** ** ** i, double j, * ** * = k;}


** ** * *** * ** ** ** ** *** = *
** * * * * * * * * ** *** z;}

};





int main()

{
* *** * ** * * ** * * **** * * 1);
* * *** ** * * ** ** ***** * 2, 3);
** ** * ** *** * * * *** * *** *** ** ** * for the 3d object are: * * ** **** ** **
***** * * * ** * * ** * * *** * * * * * * * ** * ** ** * ** * * * ** ** * *** *** * ** * *** * * * ** * * * * ** * endl;
* ** **** *** * ** * **** 0;

}