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()

{
* * * * ** ** *** **** * y;

}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
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* ** * * ** * * * ** ** x2,y2,z2;
** ******** ***** * * * *** *** **** ** * * *
* *** ** * * * * **** ****** * ***
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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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*** * * * *
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using * * std;



class Point{
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****** *** **** *** * * * *
**** ** *** * * * *** * *** 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;

}