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;

}