| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2012-2019 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/>. | |
| Class | |
| Foam::pointToPointPlanarInterpolation | |
| Description | |
| Interpolates between two sets of unstructured points using 2D Delaunay | |
| triangulation. Used in e.g. timeVaryingMapped bcs. | |
| SourceFiles | |
| pointToPointPlanarInterpolation.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class pointToPointPlanarInterpolation Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class pointToPointPlanarInterpolation | |
| { | |
| // Private Data | |
| //- Perturbation factor | |
| const scalar perturb_; | |
| //- Whether to use nearest point only (avoids triangulation, projection) | |
| const bool nearestOnly_; | |
| //- Coordinate system | |
| coordinateSystem referenceCS_; | |
| //- Number of source points (for checking) | |
| label nPoints_; | |
| //- Current interpolation addressing to face centres of underlying | |
| // patch | |
| List<FixedList<label, 3>> nearestVertex_; | |
| //- Current interpolation factors to face centres of underlying | |
| // patch | |
| List<FixedList<scalar, 3>> nearestVertexWeight_; | |
| // Private Member Functions | |
| //- Calculate a local coordinate system from set of points | |
| coordinateSystem calcCoordinateSystem(const pointField&) const; | |
| //- Calculate addressing and weights | |
| void calcWeights | |
| ( | |
| const pointField& sourcePoints, | |
| const pointField& destPoints | |
| ); | |
| public: | |
| // Declare name of the class and its debug switch | |
| ClassName("pointToPointPlanarInterpolation"); | |
| // Constructors | |
| //- Construct from 3D locations. Determines local coordinate system | |
| // from sourcePoints and maps onto that. If nearestOnly skips any | |
| // local coordinate system and triangulation and uses nearest vertex | |
| // only | |
| pointToPointPlanarInterpolation | |
| ( | |
| const pointField& sourcePoints, | |
| const pointField& destPoints, | |
| const scalar perturb, | |
| const bool nearestOnly = false | |
| ); | |
| //- Construct from coordinate system and locations. | |
| pointToPointPlanarInterpolation | |
| ( | |
| const coordinateSystem& referenceCS, | |
| const pointField& sourcePoints, | |
| const pointField& destPoints, | |
| const scalar perturb | |
| ); | |
| // Member Functions | |
| //- Return the coordinateSystem | |
| const coordinateSystem& referenceCS() const | |
| { | |
| return referenceCS_; | |
| } | |
| //- Number of source points | |
| label sourceSize() const | |
| { | |
| return nPoints_; | |
| } | |
| // patch | |
| const List<FixedList<label, 3>>& nearestVertex() const | |
| { | |
| return nearestVertex_; | |
| } | |
| //- Current interpolation factors to face centres of underlying | |
| // patch | |
| const List<FixedList<scalar, 3>>& nearestVertexWeight() const | |
| { | |
| return nearestVertexWeight_; | |
| } | |
| //- Helper: extract words of times | |
| static wordList timeNames(const instantList&); | |
| //- Helper: find time. Return true if successful. | |
| static bool findTime | |
| ( | |
| const instantList& times, | |
| const label startSampleTime, | |
| const scalar timeVal, | |
| label& lo, | |
| label& hi | |
| ); | |
| //- Interpolate from field on source points to dest points | |
| template<class Type> | |
| tmp<Field<Type>> interpolate(const Field<Type>& sourceFld) const; | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |