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;

}