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;

}