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
**** * *** ** * *
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*** * *** *** ****** ** *** * ** * * * ** dist(ThreeD other);
*** * ** * * * ** ** * * ** * * * * ** getx();
*** * * ** * ** ** * * *** * * * * * gety();
* * *** * * *** * * *** * **** * * ** * getz();
* ** ********* * * ***** * *

ThreeD::ThreeD(double i, double j, double k)

{
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}

double ThreeD::getx()

{
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}

double ThreeD::gety()

{
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}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
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}

int main()

{


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** ***** * * ** * ** a(i,j,k);
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**** * * *** * ** *** * b(i,j,k);
* * ** * **** *** * * * *


* * ** * ****** ******* 0;

}

Answer 2

Hidden content!
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using ** * std;



class Point{
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** * * *** ** * ** ** * 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)

{
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* **** ** ** * * ** * ** **** *** * * ****

}


* **** ** * *

{
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}



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;

}