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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{
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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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** ********* *** * *** * 0;

}

Answer 2

Hidden content!
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using ** * std;



class Point{
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** ** * ** * * * * z;

};


**** * **

{
* * * ** ** *** * = 0;
** ** * ***** *** = 0;
* ** * ** * * * = 0;

}


**** *** * xpos, double ypos, double zpos)

{
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* * ** * **** *** * = ypos;
* ** * * ** * ********* * = zpos;

}


* *** * *

{
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}


* * * *** *

{
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}


** ** * **

{
* ****** ** * ** 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;


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**** * ** ** *** * *** 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;

}