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;

}