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;

}