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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* * **** * *** ** * ** *
*** ** * ** * ** * ** ** ** * *** ** * *** * x,y,z;
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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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** ** * * * ********** * * * ** *** **** ** ** ***
******* ** * * ** **** *** b(i,j,k);
** * * ** * * * ** * *


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

}

Answer 2

Hidden content!
* * * ** * * ******* *
** * *** ** * **
** ** ** ** *****
* ** ****** * **



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;

}