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;

}