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;

}