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;

}