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;

}