matchPoints.H

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/*---------------------------------------------------------------------------*\
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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
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    You should have received a copy of the GNU General Public License
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Description
    Determine correspondence between points. See below.
 
SourceFiles
    matchPoints.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef matchPoints_H
#define matchPoints_H
 
#include "scalarField.H"
#include "pointField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                       Function matchPoints Declaration
\*---------------------------------------------------------------------------*/
 
//- Determine correspondence between pointFields. Gets passed
//  local matching distance per point. Returns map from 0 to 1. Returns
//  true if found corresponding point in 1 for every point in 0; false
//  otherwise. Compares mag(pt - origin) and does proper comparison for points
//  with (almost) identical mag. pts0 can be subset of pts1.
bool matchPoints
(
    const UList<point>& pts0,
    const UList<point>& pts1,
    const UList<scalar>& matchDistance,
    const bool verbose,
    labelList& from0To1,
    const point& origin = point::zero
);
 
 
//- Supply pts0Dir and pts1Dir. They are directions associated with the points
//  e.g., a face normal associated with each face centre.
//  A match between similar points is only allowed if their directions are
//  equal and opposite
bool matchPoints
(
    const UList<point>& pts0,
    const UList<point>& pts1,
    const UList<point>& pts0Dir,
    const UList<point>& pts1Dir,
    const UList<scalar>& matchDistance,
    const bool verbose,
    labelList& from0To1,
    const point& origin = point::zero
);
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //