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;

}