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;

}