plane_searchableSurface.C

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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 "plane_searchableSurface.H"
#include "SortableList.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    namespace searchableSurfaces
    {
        defineTypeNameAndDebug(plane, 0);
 
        addToRunTimeSelectionTable
        (
            searchableSurface,
            plane,
            dictionary
        );
 
        addBackwardCompatibleToRunTimeSelectionTable
        (
            searchableSurface,
            plane,
            dictionary,
            searchablePlane,
            "searchablePlane"
        );
    }
}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
Foam::pointIndexHit Foam::searchableSurfaces::plane::findLine
(
    const point& start,
    const point& end
) const
{
    pointIndexHit info(true, Zero, 0);
 
    linePointRef l(start, end);
 
    scalar t = lineIntersect(l);
 
    if (t < 0 || t > 1)
    {
        info.setMiss();
        info.setIndex(-1);
    }
    else
    {
        info.setPoint(start+t*l.vec());
    }
 
    return info;
}
 
 
Foam::boundBox Foam::searchableSurfaces::plane::calcBounds() const
{
    point min = point::min, max = point::max;
 
    for (direction dir = 0; dir < vector::nComponents; dir ++)
    {
        // component == +1
        if (normal()[dir] > 1 - small)
        {
            max[dir] = refPoint()[dir];
            break;
        }
 
        // component == -1
        if (normal()[dir] < small - 1)
        {
            min[dir] = refPoint()[dir];
            break;
        }
    }
 
    return boundBox(min, max);
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::searchableSurfaces::plane::plane
(
    const IOobject& io,
    const point& basePoint,
    const vector& normal
)
:
    searchableSurface(io),
    Foam::plane(basePoint, normal)
{
    bounds() = calcBounds();
}
 
 
Foam::searchableSurfaces::plane::plane
(
    const IOobject& io,
    const dictionary& dict
)
:
    searchableSurface(io),
    Foam::plane(dict)
{
    bounds() = calcBounds();
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::searchableSurfaces::plane::~plane()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
const Foam::wordList& Foam::searchableSurfaces::plane::regions() const
{
    if (regions_.empty())
    {
        regions_.setSize(1);
        regions_[0] = "region0";
    }
    return regions_;
}
 
 
void Foam::searchableSurfaces::plane::boundingSpheres
(
    pointField& centres,
    scalarField& radiusSqr
) const
{
    centres.setSize(1);
    centres[0] = refPoint();
 
    radiusSqr.setSize(1);
    radiusSqr[0] = Foam::sqr(great);
}
 
 
void Foam::searchableSurfaces::plane::findNearest
(
    const pointField& samples,
    const scalarField& nearestDistSqr,
    List<pointIndexHit>& info
) const
{
    info.setSize(samples.size());
 
    forAll(samples, i)
    {
        info[i].setPoint(nearestPoint(samples[i]));
 
        if (magSqr(samples[i]-info[i].rawPoint()) > nearestDistSqr[i])
        {
            info[i].setIndex(-1);
            info[i].setMiss();
        }
        else
        {
            info[i].setIndex(0);
            info[i].setHit();
        }
    }
}
 
 
void Foam::searchableSurfaces::plane::findLine
(
    const pointField& start,
    const pointField& end,
    List<pointIndexHit>& info
) const
{
    info.setSize(start.size());
 
    forAll(start, i)
    {
        info[i] = findLine(start[i], end[i]);
    }
}
 
 
void Foam::searchableSurfaces::plane::findLineAny
(
    const pointField& start,
    const pointField& end,
    List<pointIndexHit>& info
) const
{
    findLine(start, end, info);
}
 
 
void Foam::searchableSurfaces::plane::findLineAll
(
    const pointField& start,
    const pointField& end,
    List<List<pointIndexHit>>& info
) const
{
    List<pointIndexHit> nearestInfo;
    findLine(start, end, nearestInfo);
 
    info.setSize(start.size());
    forAll(info, pointi)
    {
        if (nearestInfo[pointi].hit())
        {
            info[pointi].setSize(1);
            info[pointi][0] = nearestInfo[pointi];
        }
        else
        {
            info[pointi].clear();
        }
    }
}
 
 
void Foam::searchableSurfaces::plane::getRegion
(
    const List<pointIndexHit>& info,
    labelList& region
) const
{
    region.setSize(info.size());
    region = 0;
}
 
 
void Foam::searchableSurfaces::plane::getNormal
(
    const List<pointIndexHit>& info,
    vectorField& n
) const
{
    n.setSize(info.size());
    n = normal();
}
 
 
void Foam::searchableSurfaces::plane::getVolumeType
(
    const pointField& points,
    List<volumeType>& volType
) const
{
    forAll(points, pointi)
    {
        volType[pointi] =
            ((points[pointi] - refPoint()) & normal()) < 0
          ? volumeType::inside
          : volumeType::outside;
    }
}
 
 
// ************************************************************************* //