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;

}