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;

}