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;

}