planeI.H

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    Copyright (C) 2018-2019 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    under the terms of the GNU General Public License as published by
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// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
inline Foam::plane::plane()
:
    normal_(Zero),
    origin_(Zero)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
inline const Foam::vector& Foam::plane::normal() const
{
    return normal_;
}
 
 
inline const Foam::point& Foam::plane::origin() const
{
    return origin_;
}
 
 
inline Foam::point& Foam::plane::origin()
{
    return origin_;
}
 
 
inline const Foam::point& Foam::plane::refPoint() const
{
    return origin_;
}
 
 
inline void Foam::plane::flip()
{
    normal_ = -normal_;
}
 
 
inline Foam::point Foam::plane::nearestPoint(const point& p) const
{
    return p - normal_*((p - origin_) & normal_);
}
 
 
inline Foam::scalar Foam::plane::distance(const point& p) const
{
    return mag(signedDistance(p));
}
 
 
inline Foam::scalar Foam::plane::signedDistance(const point& p) const
{
    return ((p - origin_) & normal_);
}
 
 
inline Foam::plane::side Foam::plane::sideOfPlane(const point& p) const
{
    const scalar dist = signedDistance(p);
 
    return (dist < 0 ? BACK : FRONT);
}
 
 
inline int Foam::plane::sign(const point& p, const scalar tol) const
{
    const scalar dist = signedDistance(p);
 
    return ((dist < -tol) ? -1 : (dist > tol) ? +1 : 0);
}
 
 
// * * * * * * * * * * * * * * * Global Operators  * * * * * * * * * * * * * //
 
inline bool Foam::operator==(const plane& a, const plane& b)
{
    return (a.origin() == b.origin() && a.normal() == b.normal());
}
 
 
inline bool Foam::operator!=(const plane& a, const plane& b)
{
    return !(a == b);
}
 
 
inline bool Foam::operator<(const plane& a, const plane& b)
{
    return (a.origin() < b.origin());
}
 
 
// ************************************************************************* //