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;

}