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;

}