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;

}