/usr/include/openturns/P1LagrangeEvaluation.hxx is in libopenturns-dev 1.9-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @brief P1 Lagrange piecewise linear function.
*
* Copyright 2005-2017 Airbus-EDF-IMACS-Phimeca
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef OPENTURNS_P1LAGRANGEEVALUATION_HXX
#define OPENTURNS_P1LAGRANGEEVALUATION_HXX
#include "openturns/EvaluationImplementation.hxx"
#include "openturns/PersistentCollection.hxx"
#include "openturns/Field.hxx"
BEGIN_NAMESPACE_OPENTURNS
/**
* @class P1LagrangeEvaluation
* Provided a field, compute the P1 piecewise-linear Lagrange interpolation.
*/
class OT_API P1LagrangeEvaluation
: public EvaluationImplementation
{
CLASSNAME;
friend class FunctionImplementation;
friend class P1LagrangeEvaluationComputeSamplePolicy;
public:
typedef Mesh::IndicesCollection IndicesCollection;
/** Default constructor */
P1LagrangeEvaluation();
/** Default constructor */
explicit P1LagrangeEvaluation(const Field & field);
/** Virtual constructor */
virtual P1LagrangeEvaluation * clone() const;
/** Comparison operator */
Bool operator ==(const P1LagrangeEvaluation & other) const;
/** String converter */
String __repr__() const;
String __str__( const String & offset = "" ) const;
/** Field accessor */
void setField(const Field & field);
Field getField() const;
/** Mesh accessor */
void setMesh(const Mesh & mesh);
Mesh getMesh() const;
/** Vertices accessor */
void setVertices(const Sample & vertices);
Sample getVertices() const;
/** Simplices accessor */
void setSimplices(const IndicesCollection & simplices);
IndicesCollection getSimplices() const;
/** Values accessor */
void setValues(const Sample & values);
Sample getValues() const;
/* Here is the interface that all derived class must implement */
/** Operator () */
virtual Point operator()(const Point & inP) const;
virtual Sample operator()(const Sample & inS) const;
protected:
Point evaluate(const Point & inP) const;
public:
/** Accessor for input point dimension */
virtual UnsignedInteger getInputDimension() const;
/** Accessor for output point dimension */
virtual UnsignedInteger getOutputDimension() const;
/** Method save() stores the object through the StorageManager */
void save(Advocate & adv) const;
/** Method load() reloads the object from the StorageManager */
void load(Advocate & adv);
protected:
/* Mesh of the field defining the P1 Lagrange interpolation */
Mesh mesh_;
/* Values of the field defining the P1 Lagrange interpolation */
Sample values_;
private:
class P1LagrangeEvaluationComputeSamplePolicy
{
const Sample & input_;
Sample & output_;
const P1LagrangeEvaluation & lagrange_;
public:
P1LagrangeEvaluationComputeSamplePolicy(const Sample & input,
Sample & output,
const P1LagrangeEvaluation & lagrange)
: input_(input)
, output_(output)
, lagrange_(lagrange)
{
// Nothing to do
}
inline void operator()( const TBB::BlockedRange<UnsignedInteger> & r ) const
{
for (UnsignedInteger i = r.begin(); i != r.end(); ++i)
output_[i] = lagrange_.evaluate(input_[i]);
} // operator ()
}; // class P1LagrangeEvaluationComputeSamplePolicy
}; /* class P1LagrangeEvaluation */
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_P1LAGRANGEEVALUATION_HXX */
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