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);
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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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** ** * * *** * ** * * * 0;

}

Answer 2

Hidden content!
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using std;



class Point{
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** * ******** *** * ***** *** xpos, double ypos, double zpos);
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* * **** *** ** * ** * * * * xpos, double ypos, double zpos);
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* *** ** * * * * *** ** 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;

}