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;

}