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;

}