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;

}