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;

}