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
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* * * * ** * ****
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* ** ********* ****** ** *** ** ** ** * *** * dist(ThreeD other);
** * * ** * ** * ***** ** **** * ** * * getx();
** * *** **** ** ** * *** ** **** *** * gety();
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*** * *** * * **

ThreeD::ThreeD(double i, double j, double k)

{
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}

double ThreeD::getx()

{
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}

double ThreeD::gety()

{
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}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
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}

int main()

{


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* ** * * *** ** *** * ** * ***** ** * * **
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** * *** * *** * ** *** * ** b(i,j,k);
** ** * ** * * * ***** **


***** ** ** * ** * **** 0;

}

Answer 2

Hidden content!
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using std;



class Point{
** * **
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* * * ******** *** * * * xpos, double ypos, double zpos);
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****** ** * ***** * ** ** * **** *** 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)

{
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* ** ** *** * * ******* ** * * *** ** * *** ***

}


* *** ***

{
* * ** *** *** * * * * * * **** - * ** ** 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;

}