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;

}