inlib::func::in_ellipse Class Reference

List of all members.

Public Member Functions
	in_ellipse ()
virtual	~in_ellipse ()
	in_ellipse (const in_ellipse &a_from)
in_ellipse &	operator= (const in_ellipse &a_from)
bool	in_domain (double, double) const
double	value (double a_x, double a_y) const
bool	set_from_a_b (double a_a, double a_b)
double	a () const
double	b () const

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Detailed Description

Definition at line 308 of file func.

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Constructor & Destructor Documentation

inlib::func::in_ellipse::in_ellipse

(

)

[inline]

Definition at line 310 of file func.

:m_a(1),m_b(1){}

virtual inlib::func::in_ellipse::~in_ellipse

(

)

[inline, virtual]

Definition at line 311 of file func.

{}

inlib::func::in_ellipse::in_ellipse

(

const in_ellipse &

a_from

)

[inline]

Definition at line 313 of file func.

:m_a(a_from.m_a),m_b(a_from.m_b){}

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Member Function Documentation

double inlib::func::in_ellipse::a

(

)

const [inline]

Definition at line 346 of file func.

{return m_a;}

double inlib::func::in_ellipse::b

(

)

const [inline]

Definition at line 347 of file func.

{return m_b;}

bool inlib::func::in_ellipse::in_domain	(	double	,
		double
	)		const [inline]

Definition at line 320 of file func.

{return true;}

in_ellipse& inlib::func::in_ellipse::operator=

(

const in_ellipse &

a_from

)

[inline]

Definition at line 314 of file func.

                                                 {
    m_a = a_from.m_a;
    m_b = a_from.m_b;
    return *this;
  }

bool inlib::func::in_ellipse::set_from_a_b	(	double	a_a,
		double	a_b
	)		[inline]

Definition at line 339 of file func.

                                           {
    if(a_a<=0) return false;
    if(a_b<=0) return false;
    m_a = a_a;
    m_b = a_b;
    return true;
  }

double inlib::func::in_ellipse::value	(	double	a_x,
		double	a_y
	)		const [inline]

Definition at line 321 of file func.

                                            {
    if(m_a>=m_b) {
      double f = ::sqrt(m_a*m_a-m_b*m_b);
      double x1  = a_x-f;
      double x2  = a_x+f;
      double y2 = a_y*a_y;
      double d = ::sqrt(x1*x1+y2) + ::sqrt(x2*x2+y2);
      return (d>(2*m_a)?false:true); //border is outside.
    } else {
      double f = ::sqrt(m_b*m_b-m_a*m_a);
      double y1  = a_y-f;
      double y2  = a_y+f;
      double x2 = a_x*a_x;
      double d = ::sqrt(x2+y1*y1) + ::sqrt(x2+y2*y2);
      return (d>(2*m_b)?false:true); //border is outside.
    }
  }

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The documentation for this class was generated from the following file:

• /Users/barrand/private/dev/softinex/old/inexlib-1.2/inlib/inlib/func