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// SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
#ifndef DUNE_PYTHON_GEOMETRY_REFERENCEELEMENTS_HH
#define DUNE_PYTHON_GEOMETRY_REFERENCEELEMENTS_HH
#include <array>
#include <functional>
#include <string>
#include <dune/common/visibility.hh>
#include <dune/geometry/referenceelements.hh>
#include <dune/geometry/type.hh>
#include <dune/python/common/fvecmatregistry.hh>
#include <dune/python/geometry/quadraturerules.hh>
#include <dune/python/pybind11/pybind11.h>
namespace Dune
{
namespace Python
{
namespace detail
{
// referenceElementSize
// --------------------
template< class RefElement >
inline static int referenceElementSize ( const RefElement &refElement, int c )
{
if( (c < 0) || (c > RefElement::dimension) )
throw pybind11::value_error( "Invalid codimension: " + std::to_string( c ) + " (must be in [0, " + std::to_string( RefElement::dimension ) + "])." );
return refElement.size( c );
}
template< class RefElement >
inline static int referenceElementSize ( const RefElement &refElement, int i, int c, int cc )
{
const int size = detail::referenceElementSize( refElement, c );
if( (i < 0) || (i >= size) )
throw pybind11::value_error( "Invalid index: " + std::to_string( i ) + " (must be in [0, " + std::to_string( size ) + "))." );
if( (cc < c) || (cc > RefElement::dimension) )
throw pybind11::value_error( "Invalid codimension: " + std::to_string( cc ) + " (must be in [" + std::to_string( c ) + ", " + std::to_string( RefElement::dimension ) + "])." );
return refElement.size( i, c, cc );
}
// referenceElementSubEntity
// -------------------------
template< class RefElement >
inline static int referenceElementSubEntity ( const RefElement &refElement, int i, int c, int ii, int cc )
{
const int size = detail::referenceElementSize( refElement, i, c, cc );
if( (ii < 0) || (ii >= size) )
throw pybind11::value_error( "Invalid index: " + std::to_string( i ) + " (must be in [0, " + std::to_string( size ) + "))." );
return refElement.subEntity( i, c, ii, cc );
}
// referenceElementPosition
// ------------------------
template< class RefElement >
inline static auto referenceElementPosition ( const RefElement &refElement, int i, int c )
{
const int size = detail::referenceElementSize( refElement, c );
if( (i < 0) || (i >= size) )
throw pybind11::value_error( "Invalid index: " + std::to_string( i ) + " (must be in [0, " + std::to_string( size ) + "))." );
return refElement.position( i, c );
}
// referenceElementType
// --------------------
template< class RefElement >
inline static GeometryType referenceElementType ( const RefElement &refElement, int i, int c )
{
const int size = detail::referenceElementSize( refElement, c );
if( (i < 0) || (i >= size) )
throw pybind11::value_error( "Invalid index: " + std::to_string( i ) + " (must be in [0, " + std::to_string( size ) + "))." );
return refElement.type( i, c );
}
} // namespace detail
template< class RefElement, class... options >
void registerReferenceElements ( pybind11::module module, pybind11::class_< RefElement, options... > cls )
{
using pybind11::operator""_a;
pybind11::options opts;
opts.disable_function_signatures();
static const std::size_t dimension = RefElement::dimension;
typedef typename RefElement::ctype ctype;
registerFieldVecMat<FieldVector<ctype,dimension>>::apply();
registerFieldVecMat<FieldMatrix<ctype,dimension,dimension>>::apply();
cls.def_property_readonly( "dimension", [] ( pybind11::object ) { return pybind11::int_( RefElement::dimension ); } );
cls.def( "size", [] ( const RefElement &self, int c ) {
return detail::referenceElementSize( self, c );
}, "codim"_a );
cls.def( "size", [] ( const RefElement &self, int i, int c, int cc ) {
return detail::referenceElementSize( self, i, c, cc );
} );
cls.def( "size", [] ( const RefElement &self, std::tuple< int, int > e, int cc ) {
return detail::referenceElementSize( self, std::get< 0 >( e ), std::get< 1 >( e ), cc );
}, "subentity"_a, "codim"_a );
cls.def( "type", [] ( const RefElement &self, int i, int c ) {
return detail::referenceElementType( self, i, c );
}, "index"_a, "codim"_a );
cls.def( "type", [] ( const RefElement &self, std::tuple< int, int > e ) {
return detail::referenceElementType( self, std::get< 0 >( e ), std::get< 1 >( e ) );
}, "subentity"_a );
cls.def( "types", [] ( const RefElement &self, int c ) {
const int size = detail::referenceElementSize( self, c );
pybind11::tuple types( size );
for( int i = 0; i < size; ++i )
types[ i ] = pybind11::cast( self.type( i, c ) );
return types;
}, "codim"_a,
R"doc(
get geometry types of subentities
Args:
codim: codimension of subentities
Returns:
tuple containing geometry type for each subentity
)doc" );
cls.def( "subEntity", [] ( const RefElement &self, int i, int c, int ii, int cc ) {
return detail::referenceElementSubEntity( self, i, c, ii, cc );
} );
cls.def( "subEntity", [] ( const RefElement &self, std::tuple< int, int > e, std::tuple< int, int > ee ) {
return detail::referenceElementSubEntity( self, std::get< 0 >( e ), std::get< 1 >( e ), std::get< 0 >( ee ), std::get< 1 >( ee ) );
} );
cls.def( "subEntities", [] ( const RefElement &self, int i, int c, int cc ) {
const int size = detail::referenceElementSize( self, i, c, cc );
pybind11::tuple subEntities( size );
for( int ii = 0; ii < size; ++ii )
subEntities[ ii ] = pybind11::int_( self.subEntity( i, c, ii, cc ) );
return subEntities;
} );
cls.def( "subEntities", [] ( const RefElement &self, std::tuple< int, int > e, int cc ) {
const int size = detail::referenceElementSize( self, std::get< 0 >( e ), std::get< 1 >( e ), cc );
pybind11::tuple subEntities( size );
for( int ii = 0; ii < size; ++ii )
subEntities[ ii ] = pybind11::int_( self.subEntity( std::get< 0 >( e ), std::get< 1 >( e ), ii, cc ) );
return subEntities;
}, "subentity"_a, "codim"_a );
cls.def( "position", [] ( const RefElement &self, int i, int c ) {
return detail::referenceElementPosition( self, i, c );
}, "index"_a, "codim"_a );
cls.def( "position", [] ( const RefElement &self, std::tuple< int, int > e ) {
return detail::referenceElementPosition( self, std::get< 0 >( e ), std::get< 1 >( e ) );
}, "subentity"_a );
cls.def( "positions", [] ( const RefElement &self, int c ) {
const int size = detail::referenceElementSize( self, c );
pybind11::tuple positions( size );
for( int i = 0; i < size; ++i )
positions[ i ] = pybind11::cast( self.position( i, c ) );
return positions;
}, "codim"_a,
R"doc(
get barycenters of subentities
Args:
codim: codimension of subentities
Returns:
tuple containing barycenter for each subentity
)doc" );
#if 0
// Bug: This property overwrite the method "type"
cls.def_property_readonly( "type", [] ( const RefElement &self ) {
return self.type();
},
R"doc(
geometry type of reference element
)doc" );
#endif
cls.def_property_readonly( "center", [] ( const RefElement &self ) {
return self.position( 0, 0 );
},
R"doc(
barycenter of reference domain
)doc" );
cls.def_property_readonly( "corners", [] ( const RefElement &self ) {
const int size = self.size( RefElement::dimension );
pybind11::tuple corners( size );
for( int i = 0; i < size; ++i )
corners[ i ] = pybind11::cast( self.position( i, RefElement::dimension ) );
return corners;
},
R"doc(
corners of reference domain
)doc" );
cls.def_property_readonly( "volume", [] ( const RefElement &self ) {
return self.volume();
},
R"doc(
volume of reference domain
)doc" );
if( RefElement::dimension > 0 )
{
cls.def( "integrationOuterNormal", [] ( const RefElement &self, int i ) {
if( (i < 0) || (i >= self.size( 1 )) )
throw pybind11::value_error( "Invalid index: " + std::to_string( i ) + " (must be in [0, " + std::to_string( self.size( 1 ) ) + "))." );
return self.integrationOuterNormal( i );
}, "index"_a );
cls.def_property_readonly( "integrationOuterNormals", [] ( const RefElement &self ) {
const int size = self.size( 1 );
pybind11::tuple integrationOuterNormals( size );
for( int i = 0; i < size; ++i )
integrationOuterNormals[ i ] = pybind11::cast( self.integrationOuterNormal( i ) );
return integrationOuterNormals;
} );
}
registerQuadratureRule<typename RefElement::ctype, RefElement::dimension>( module );
module.def( "general", [] ( const GeometryType > ) -> pybind11::object {
if( gt.isNone() )
return pybind11::none();
else
return pybind11::cast( Dune::ReferenceElements< typename RefElement::ctype, RefElement::dimension >::general( gt ), pybind11::return_value_policy::reference );
} );
module.def( "rule", [] (const GeometryType >, int order) {
return Dune::QuadratureRules< typename RefElement::ctype, RefElement::dimension >::rule( gt, order );
}, pybind11::return_value_policy::reference );
}
template <int dim>
void registerReferenceElementToModule( pybind11::module module )
{
using pybind11::operator""_a;
pybind11::module cls0 = module;
{
using DuneType = Dune::Geo::ReferenceElement<Dune::Geo::ReferenceElementImplementation<double,dim> >;
std::string typeName ("Dune::Geo::ReferenceElement<Dune::Geo::ReferenceElementImplementation<double,");
typeName += std::to_string( dim ) + "> >";
auto cls = Dune::Python::insertClass< DuneType >( cls0, "ReferenceElements",
Dune::Python::GenerateTypeName( typeName.c_str() ),
Dune::Python::IncludeFiles{"dune/python/geometry/referenceelements.hh"}).first;
Dune::Python::registerReferenceElements( cls0, cls );
}
}
} // namespace Python
} // namespace Dune
#endif // #ifndef DUNE_PYTHON_GEOMETRY_REFERENCEELEMENTS_HH
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