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()

{


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* * ** * * * ** ** *** ** *** **** ** *** **
* * * *** *********** * *** 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;

}