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;

}