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;

}