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

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

}


** * * **

{
*** * ***** * *** * ** **** * x;

}


****** *****

{
** ** ***** * * *** * y;

}


* *

{
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}



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

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

}


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* * * ** *** * *
** ** * * ****** * * *** Apos, Point Bpos);
** * ** ***** ** * ** * ***
****** * ***
** *** ** ****** ** A;
** ** * *** * ** B;

};


* * * * * Apos, Point Bpos)

{
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}


**** ** *** *** *

{
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}



int main()

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

}