dune-localfunctions
2.10
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dune
localfunctions
lagrange
p0
p0localinterpolation.hh
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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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// vi: set et ts=4 sw=2 sts=2:
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// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
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// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
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#ifndef DUNE_P0LOCALINTERPOLATION_HH
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#define DUNE_P0LOCALINTERPOLATION_HH
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#include <vector>
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#include <dune/geometry/referenceelements.hh>
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namespace
Dune
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{
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template
<
class
LB>
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class
P0LocalInterpolation
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{
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public
:
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P0LocalInterpolation
(
const
GeometryType& gt) : gt_(gt)
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{}
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template
<
typename
F,
typename
C>
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void
interpolate
(
const
F& f, std::vector<C>& out)
const
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{
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typedef
typename
LB::Traits::DomainType DomainType;
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typedef
typename
LB::Traits::DomainFieldType DF;
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const
int
dim=LB::Traits::dimDomain;
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DomainType x = Dune::ReferenceElements<DF,dim>::general(gt_).position(0,0);
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out.resize(1);
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out[0] = f(x);
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}
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private
:
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GeometryType gt_;
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};
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}
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#endif
Dune
Definition
bdfmcube.hh:18
Dune::P0LocalInterpolation
Definition
p0localinterpolation.hh:20
Dune::P0LocalInterpolation::P0LocalInterpolation
P0LocalInterpolation(const GeometryType >)
Definition
p0localinterpolation.hh:22
Dune::P0LocalInterpolation::interpolate
void interpolate(const F &f, std::vector< C > &out) const
determine coefficients interpolating a given function
Definition
p0localinterpolation.hh:27
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