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;

}