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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 "pointMapper.H"
#include "demandDrivenData.H"
#include "pointMesh.H"
#include "polyTopoChangeMap.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::pointMapper::calcAddressing() const
{
if
(
directAddrPtr_
|| interpolationAddrPtr_
|| weightsPtr_
|| insertedPointLabelsPtr_
)
{
FatalErrorInFunction
<< "Addressing already calculated."
<< abort(FatalError);
}
if (direct())
{
// Direct addressing, no weights
directAddrPtr_ = new labelList(map_.pointMap());
labelList& directAddr = *directAddrPtr_;
// Not necessary to resize the list as there are no retired points
// directAddr.setSize(pMesh_.size());
insertedPointLabelsPtr_ = new labelList(pMesh_.size());
labelList& insertedPoints = *insertedPointLabelsPtr_;
label nInsertedPoints = 0;
forAll(directAddr, pointi)
{
if (directAddr[pointi] < 0)
{
// Found inserted point
directAddr[pointi] = 0;
insertedPoints[nInsertedPoints] = pointi;
nInsertedPoints++;
}
}
insertedPoints.setSize(nInsertedPoints);
}
else
{
// Interpolative addressing
interpolationAddrPtr_ = new labelListList(pMesh_.size());
labelListList& addr = *interpolationAddrPtr_;
weightsPtr_ = new scalarListList(pMesh_.size());
scalarListList& w = *weightsPtr_;
// Points created from other points (i.e. points merged into it).
const List<objectMap>& cfc = map_.pointsFromPointsMap();
forAll(cfc, cfcI)
{
// Get addressing
const labelList& mo = cfc[cfcI].masterObjects();
label pointi = cfc[cfcI].index();
if (addr[pointi].size())
{
FatalErrorInFunction
<< "Master point " << pointi
<< " mapped from points " << mo
<< " already destination of mapping." << abort(FatalError);
}
// Map from masters, uniform weights
addr[pointi] = mo;
w[pointi] = scalarList(mo.size(), 1.0/mo.size());
}
// Do mapped points. Note that can already be set from pointsFromPoints
// so check if addressing size still zero.
const labelList& cm = map_.pointMap();
forAll(cm, pointi)
{
if (cm[pointi] > -1 && addr[pointi].empty())
{
// Mapped from a single point
addr[pointi] = labelList(1, cm[pointi]);
w[pointi] = scalarList(1, 1.0);
}
}
// Grab inserted points (for them the size of addressing is still zero)
insertedPointLabelsPtr_ = new labelList(pMesh_.size());
labelList& insertedPoints = *insertedPointLabelsPtr_;
label nInsertedPoints = 0;
forAll(addr, pointi)
{
if (addr[pointi].empty())
{
FatalErrorInFunction
<< "No interpolative addressing provided for point "
<< pointi
<< abort(FatalError);
// Mapped from a dummy point. Take point 0 with weight 1.
addr[pointi] = labelList(1, label(0));
w[pointi] = scalarList(1, 1.0);
insertedPoints[nInsertedPoints] = pointi;
nInsertedPoints++;
}
}
insertedPoints.setSize(nInsertedPoints);
}
}
void Foam::pointMapper::clearOut()
{
deleteDemandDrivenData(directAddrPtr_);
deleteDemandDrivenData(interpolationAddrPtr_);
deleteDemandDrivenData(weightsPtr_);
deleteDemandDrivenData(insertedPointLabelsPtr_);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::pointMapper::pointMapper
(
const pointMesh& pMesh,
const polyTopoChangeMap& map
)
:
pMesh_(pMesh),
map_(map),
insertedPoints_(true),
direct_(false),
directAddrPtr_(nullptr),
interpolationAddrPtr_(nullptr),
weightsPtr_(nullptr),
insertedPointLabelsPtr_(nullptr)
{
// Check for possibility of direct mapping
if (map_.pointsFromPointsMap().empty())
{
direct_ = true;
}
else
{
direct_ = false;
}
// Check for inserted points
if (direct_ && (map_.pointMap().empty() || min(map_.pointMap()) > -1))
{
insertedPoints_ = false;
}
else
{
// Check if there are inserted points with no owner
// Make a copy of the point map, add the entries for points from points
// and check for left-overs
labelList cm(pMesh_.size(), -1);
const List<objectMap>& cfc = map_.pointsFromPointsMap();
forAll(cfc, cfcI)
{
cm[cfc[cfcI].index()] = 0;
}
if (min(cm) < 0)
{
insertedPoints_ = true;
}
}
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::pointMapper::~pointMapper()
{
clearOut();
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
const Foam::labelUList& Foam::pointMapper::directAddressing() const
{
if (!direct())
{
FatalErrorInFunction
<< "Requested direct addressing for an interpolative mapper."
<< abort(FatalError);
}
if (!insertedObjects())
{
// No inserted points. Reuse pointMap
return map_.pointMap();
}
else
{
if (!directAddrPtr_)
{
calcAddressing();
}
return *directAddrPtr_;
}
}
const Foam::labelListList& Foam::pointMapper::addressing() const
{
if (direct())
{
FatalErrorInFunction
<< "Requested interpolative addressing for a direct mapper."
<< abort(FatalError);
}
if (!interpolationAddrPtr_)
{
calcAddressing();
}
return *interpolationAddrPtr_;
}
const Foam::scalarListList& Foam::pointMapper::weights() const
{
if (direct())
{
FatalErrorInFunction
<< "Requested interpolative weights for a direct mapper."
<< abort(FatalError);
}
if (!weightsPtr_)
{
calcAddressing();
}
return *weightsPtr_;
}
Foam::label Foam::pointMapper::sizeBeforeMapping() const
{
return map_.nOldPoints();
}
const Foam::labelList& Foam::pointMapper::insertedObjectLabels() const
{
if (!insertedPointLabelsPtr_)
{
if (!insertedObjects())
{
// There are no inserted points
insertedPointLabelsPtr_ = new labelList(0);
}
else
{
calcAddressing();
}
}
return *insertedPointLabelsPtr_;
}
// ************************************************************************* //
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