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;

}