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;

}