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;

}