2 #ifndef DUNE_PDELAB_LOCALBASISCACHE_HH
3 #define DUNE_PDELAB_LOCALBASISCACHE_HH
8 #include<dune/common/exceptions.hh>
14 template<
class LocalBasisType>
17 typedef typename LocalBasisType::Traits::DomainFieldType DomainFieldType;
18 typedef typename LocalBasisType::Traits::DomainType DomainType;
19 typedef typename LocalBasisType::Traits::RangeType RangeType;
20 typedef typename LocalBasisType::Traits::JacobianType JacobianType;
24 bool operator() (
const DomainType& v1,
const DomainType& v2)
const
26 for (
typename DomainType::size_type i=0; i<DomainType::dimension; i++)
28 if ( v1[i] < v2[i]-1
e-5 )
return true;
29 if ( v1[i] > v2[i]+1
e-5 )
return false;
35 typedef std::map<DomainType,std::vector<RangeType>,less_than> FunctionCache;
36 typedef std::map<DomainType,std::vector<JacobianType>,less_than> JacobianCache;
44 const std::vector<RangeType>&
47 typename FunctionCache::iterator it = functioncache.find(position);
48 if (it!=functioncache.end())
return it->second;
49 std::vector<RangeType> values;
50 localbasis.evaluateFunction(position,values);
51 it = functioncache.insert(functioncache.begin(),std::pair<DomainType,std::vector<RangeType> >(position,values));
56 const std::vector<JacobianType>&
59 typename JacobianCache::iterator it = jacobiancache.find(position);
60 if (it!=jacobiancache.end())
return it->second;
61 std::vector<JacobianType> values;
62 localbasis.evaluateJacobian(position,values);
63 it = jacobiancache.insert(jacobiancache.begin(),std::pair<DomainType,std::vector<JacobianType> >(position,values));
68 mutable FunctionCache functioncache;
69 mutable JacobianCache jacobiancache;
LocalBasisCache()
constructor
Definition: localbasiscache.hh:41
const E & e
Definition: interpolate.hh:172
Definition: adaptivity.hh:27
store values of basis functions and gradients in a cache
Definition: localbasiscache.hh:15
const std::vector< RangeType > & evaluateFunction(const DomainType &position, const LocalBasisType &localbasis) const
evaluate basis functions at a point
Definition: localbasiscache.hh:45
const std::vector< JacobianType > & evaluateJacobian(const DomainType &position, const LocalBasisType &localbasis) const
evaluate Jacobians at a point
Definition: localbasiscache.hh:57