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;

}