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;

}