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
**** * * * * * *** * ***
* **** * * * * *** *
* * * *** * ** ** ***** ****** ** * * **** * x,y,z;
****** * *** * *** * * * * * *** *
* * ** *** ****** *** * **** * * ** *** * * * ** i, double j, double k);
*** ** * **** ** **** ***** *** **** *** ** ** *** 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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* * ****** ** * * * ***
* ***** ***** * ***** * * ** *** *
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}

int main()

{


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


* * * * * ** * 0;

}

Answer 2

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



using * * std;



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

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

}


* * * * * *

{
* * ** * ** * * * * * * ** * * ** * - * ** 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;

}