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;

}