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;

}