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;

}