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;

}