// Fig. 9.11: circle2.cpp
// Circle2 class member-function definitions.
#include <iostream>  

using std::cout;

#include "circle2.h"   // Circle2 class definition

// default constructor
Circle2::Circle2( int xValue, int yValue, double radiusValue )
{
   x = xValue;
   y = yValue;
   setRadius( radiusValue );

} // end Circle2 constructor

// set radius 
void Circle2::setRadius( double radiusValue )
{
   radius = ( radiusValue < 0.0 ? 0.0 : radiusValue );

} // end function setRadius

// return radius 
double Circle2::getRadius() const
{
   return radius;

} // end function getRadius

// calculate and return diameter
double Circle2::getDiameter() const
{
   return 2 * radius;

} // end function getDiameter

// calculate and return circumference
double Circle2::getCircumference() const
{
   return 3.14159 * getDiameter();

} // end function getCircumference

// calculate and return area
double Circle2::getArea() const
{
   return 3.14159 * radius * radius;

} // end function getArea

// output Circle2 object
void Circle2::print() const
{
   cout << "Center = [" << x << ", " << y << ']'
        << "; Radius = " << radius;

} // end function print

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