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;

}