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;

}