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;

}