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;

}