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;

}