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;

}