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;

}