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;

}