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;

}