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;

}