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)

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

}

double ThreeD::getx()

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

}

double ThreeD::gety()

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

}

double ThreeD::getz()

{
*** *** * * ** * * ** * ** z; * * * *** * ** **** *** ** * * * ******* * ** ** * ***

}



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;

}