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;

}