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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*** *** *** * * ** * * * * * *** * *** * * ** getx();
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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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* * * ** * *** * ** 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;

}