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;

}