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;

}