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;

}