KisAlgebra2D::RightHalfPlane Class Reference

#include <kis_algebra_2d.h>

Public Member Functions
QLineF	getLine () const
int	pos (const QPointF &pt) const
	RightHalfPlane (const QLineF &line)
	RightHalfPlane (const QPointF &a, const QPointF &b)
qreal	value (const QPointF &pt) const
qreal	valueSq (const QPointF &pt) const

Private Attributes
const QPointF	m_a
const qreal	m_norm_p_inv
const QPointF	m_p

Detailed Description

Definition at line 511 of file kis_algebra_2d.h.

Constructor & Destructor Documentation

RightHalfPlane() [1/2]

KisAlgebra2D::RightHalfPlane::RightHalfPlane ( const QPointF & a, const QPointF & b )

inline

Definition at line 514 of file kis_algebra_2d.h.

        : m_a(a), m_p(b - a), m_norm_p_inv(1.0 / norm(m_p))
    {
    }

RightHalfPlane() [2/2]

KisAlgebra2D::RightHalfPlane::RightHalfPlane ( const QLineF & line )

inline

Definition at line 519 of file kis_algebra_2d.h.

        : RightHalfPlane(line.p1(), line.p2())
    {
    }

Member Function Documentation

getLine()

QLineF KisAlgebra2D::RightHalfPlane::getLine ( ) const

inline

Definition at line 537 of file kis_algebra_2d.h.

                           {
        return QLineF(m_a, m_a + m_p);
    }

pos()

int KisAlgebra2D::RightHalfPlane::pos ( const QPointF & pt ) const

inline

Definition at line 533 of file kis_algebra_2d.h.

                                     {
        return signZZ(value(pt));
    }

References KisAlgebra2D::signZZ(), and value().

value()

qreal KisAlgebra2D::RightHalfPlane::value ( const QPointF & pt ) const

inline

Definition at line 529 of file kis_algebra_2d.h.

                                         {
        return crossProduct(m_p, pt - m_a) * m_norm_p_inv;
    }

References KisAlgebra2D::crossProduct().

valueSq()

qreal KisAlgebra2D::RightHalfPlane::valueSq ( const QPointF & pt ) const

inline

Definition at line 524 of file kis_algebra_2d.h.

                                           {
        const qreal val = value(pt);
        return signZZ(val) * pow2(val);
    }

References pow2(), KisAlgebra2D::signZZ(), and value().

Member Data Documentation

m_a

const QPointF KisAlgebra2D::RightHalfPlane::m_a

private

Definition at line 542 of file kis_algebra_2d.h.

m_norm_p_inv

const qreal KisAlgebra2D::RightHalfPlane::m_norm_p_inv

private

Definition at line 544 of file kis_algebra_2d.h.

m_p

const QPointF KisAlgebra2D::RightHalfPlane::m_p

private

Definition at line 543 of file kis_algebra_2d.h.

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

• libs/global/kis_algebra_2d.h