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;

}