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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "boundBox.H"
#include "pointField.H"
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
inline bool Foam::boundBox::found(const dictionary& dict)
{
return dict.found("box") || dict.found("min") || dict.found("max");
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
inline Foam::boundBox::boundBox()
:
min_(Zero),
max_(Zero)
{}
inline Foam::boundBox::boundBox(const point& min, const point& max)
:
min_(min),
max_(max)
{}
inline Foam::boundBox::boundBox(Istream& is)
{
operator>>(is, *this);
}
inline Foam::boundBox::boundBox(const dictionary& dict)
{
const bool haveBox = dict.found("box");
const bool haveMinMax = dict.found("min") && dict.found("max");
if (haveBox && !haveMinMax)
{
*this = dict.lookup<boundBox>("box", dimensions::length);
return;
}
if (!haveBox && haveMinMax)
{
min_ = dict.lookup<point>("min", dimensions::length);
max_ = dict.lookup<point>("max", dimensions::length);
return;
}
FatalIOErrorInFunction(dict)
<< (haveBox ? "both" : "neither")
<< " of keywords box "
<< (haveBox ? "and" : "or")
<< " min/max defined in dictionary"
<< dict.name() << exit(FatalIOError);
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
inline const Foam::point& Foam::boundBox::min() const
{
return min_;
}
inline const Foam::point& Foam::boundBox::max() const
{
return max_;
}
inline Foam::point& Foam::boundBox::min()
{
return min_;
}
inline Foam::point& Foam::boundBox::max()
{
return max_;
}
inline Foam::point Foam::boundBox::midpoint() const
{
return 0.5 * (max_ + min_);
}
inline Foam::vector Foam::boundBox::span() const
{
return (max_ - min_);
}
inline Foam::scalar Foam::boundBox::mag() const
{
return ::Foam::mag(max_ - min_);
}
inline Foam::scalar Foam::boundBox::volume() const
{
return cmptProduct(span());
}
inline Foam::scalar Foam::boundBox::minDim() const
{
return cmptMin(span());
}
inline Foam::scalar Foam::boundBox::maxDim() const
{
return cmptMax(span());
}
inline Foam::scalar Foam::boundBox::avgDim() const
{
return cmptAv(span());
}
inline bool Foam::boundBox::overlaps(const boundBox& bb) const
{
return
(
bb.max_.x() >= min_.x() && bb.min_.x() <= max_.x()
&& bb.max_.y() >= min_.y() && bb.min_.y() <= max_.y()
&& bb.max_.z() >= min_.z() && bb.min_.z() <= max_.z()
);
}
inline bool Foam::boundBox::overlaps
(
const point& centre,
const scalar radiusSqr
) const
{
// Find out where centre is in relation to bb.
// Find nearest point on bb.
scalar distSqr = 0;
for (direction dir = 0; dir < vector::nComponents; dir++)
{
scalar d0 = min_[dir] - centre[dir];
scalar d1 = max_[dir] - centre[dir];
if ((d0 > 0) != (d1 > 0))
{
// centre inside both extrema. This component does not add any
// distance.
}
else if (Foam::mag(d0) < Foam::mag(d1))
{
distSqr += d0*d0;
}
else
{
distSqr += d1*d1;
}
if (distSqr > radiusSqr)
{
return false;
}
}
return true;
}
inline bool Foam::boundBox::contains(const point& pt) const
{
return
(
pt.x() >= min_.x() && pt.x() <= max_.x()
&& pt.y() >= min_.y() && pt.y() <= max_.y()
&& pt.z() >= min_.z() && pt.z() <= max_.z()
);
}
// this.bb fully contains bb
inline bool Foam::boundBox::contains(const boundBox& bb) const
{
return contains(bb.min()) && contains(bb.max());
}
inline bool Foam::boundBox::containsInside(const point& pt) const
{
return
(
pt.x() > min_.x() && pt.x() < max_.x()
&& pt.y() > min_.y() && pt.y() < max_.y()
&& pt.z() > min_.z() && pt.z() < max_.z()
);
}
// * * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * //
inline bool Foam::operator==(const boundBox& a, const boundBox& b)
{
return (a.min_ == b.min_) && (a.max_ == b.max_);
}
inline bool Foam::operator!=(const boundBox& a, const boundBox& b)
{
return !(a == b);
}
// ************************************************************************* //
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