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;

}