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;

}