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;

}