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;
** * *** **** **** *** **** *
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** * *** * **** * * * **** ****** * ** * * * * getx();
** ****** *** * * * ** **** ** ** * ***** ** ** * gety();
* ***** *** * ** ** ** * ** * ********** ** ** getz();
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ThreeD::ThreeD(double i, double j, double k)

{
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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)

{
* **** ** ** ** ** * * ** sol;
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* * ** ** ** * * * ** * * * * *
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** * *** *** ** * **
* * * * ** * * ** ****** * ** * ** is: * * * ** * **** ** ** ***



}

int main()

{


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


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

}

Answer 2

Hidden content!
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using *** std;



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

}