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;

}