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;

}