Circle2D.cpp

Go to the documentation of this file.

//
// Circle2D.cpp
//
 
#include <cmath>
 
#include "Circle2D.hpp"
#include "../tools/errorhandler.hpp"
 
namespace datatypes
{
 
 
Circle2D::Circle2D()
        : base_class()
{
        m_datatype = Datatype_Circle2D;
}
 
Circle2D::Circle2D(const Point2D& center, value_type radius)
        : base_class(center, Point2D(radius, radius), 0)
{
        m_datatype = Datatype_Circle2D;
}
 
Circle2D::Circle2D(value_type x_center, value_type y_center, value_type radius)
        : base_class(x_center, y_center, radius, radius, 0)
{
        m_datatype = Datatype_Circle2D;
}
 
void Circle2D::setRadius(value_type radius)
{
        base_class::setRadius(radius, radius);
}
 
bool Circle2D::containsPoint(const Point2D& point) const
{
        // Move coordinate system to center of the ellipse
        value_type deltaX = point.getX() - m_center.getX();
        value_type deltaY = point.getY() - m_center.getY();
 
        // If any of the X or Y components are outside of the radius, the
        // point cannot be inside the circle.
        if (std::max(std::abs(deltaX), std::abs(deltaY)) > m_radius.getX())
                return false;
 
        return hypot(deltaX, deltaY) < m_radius.getX();
}
 
}       // namespace datatypes