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;

}