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()

{
* *** *** ** **** * * * x;

}

double ThreeD::gety()

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

}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
* * ** **** *** ***** * ** sol;
*** * * ** * * ** **** x2,y2,z2;
** * ** * ** * * ** ** ** ** *** * ** ***
** ** ** * * * *** * ** * * ****
* ** ** *** **** * * * * ** ** * *** * * * **
* *** * *** * ** * * * *
* * * ** * * *** * **** **
** * ** * ** * ** ** * ** * * * * * * ** * is: * *** *** * * **



}

int main()

{


**** * * **** * i,j,k;
* * ** ** ** * * *** **** * * ** **** *** *** ** *
* ** ** ** ****** * *** 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;

}