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;

}