Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_CRVSRF_INTERSECTION_HH
#define DUNE_CRVSRF_INTERSECTION_HH
#include <dune/curvedsurfacegrid/declaration.hh>
#include <dune/curvedsurfacegrid/coordprovider.hh>
namespace Dune
{
namespace crvsrf
{
// Intersection
// ------------
template< class Grid, class HostIntersection >
class Intersection
{
typedef typename HostIntersection::Geometry HostGeometry;
typedef typename HostIntersection::LocalGeometry HostLocalGeometry;
typedef typename std::remove_const< Grid >::type::Traits Traits;
public:
typedef typename Traits::ctype ctype;
static const int dimension = Traits::dimension;
static const int dimensionworld = Traits::dimensionworld;
typedef typename Traits::template Codim< 0 >::Entity Entity;
typedef typename Traits::template Codim< 1 >::Geometry Geometry;
typedef typename Traits::template Codim< 1 >::LocalGeometry LocalGeometry;
typedef typename Traits::template Codim< 0 >::Geometry ElementGeometry;
private:
typedef crvsrf::IntersectionCoordProvider< Grid > ICoordProvider;
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
typedef typename Traits::template Codim< 0 >::EntityImpl EntityImpl;
typedef typename Traits::template Codim< 1 >::GeometryImpl GeometryImpl;
typedef typename Traits::template Codim< 0 >::GeometryImpl ElementGeometryImpl;
public:
Intersection()
{}
explicit Intersection ( const HostIntersection &hostIntersection, const ElementGeometryImpl &insideGeo )
: hostIntersection_( hostIntersection )
, insideGeo_ ( insideGeo )
, geo_( grid() )
{}
explicit Intersection ( HostIntersection&& hostIntersection, const ElementGeometryImpl &insideGeo )
: hostIntersection_( std::move( hostIntersection ) )
, insideGeo_ ( insideGeo )
, geo_( grid() )
{}
bool equals ( const Intersection &other) const
{
return hostIntersection_ == other.hostIntersection_;
}
explicit operator bool () const { return bool( hostIntersection_ ); }
Entity inside () const
{
return EntityImpl( insideGeo_, hostIntersection().inside() );
}
Entity outside () const
{
return EntityImpl( grid(), hostIntersection().outside() );
}
bool boundary () const { return hostIntersection().boundary(); }
bool conforming () const { return hostIntersection().conforming(); }
bool neighbor () const { return hostIntersection().neighbor(); }
size_t boundarySegmentIndex () const
{
return hostIntersection().boundarySegmentIndex();
}
LocalGeometry geometryInInside () const
{
return hostIntersection().geometryInInside();
}
LocalGeometry geometryInOutside () const
{
return hostIntersection().geometryInOutside();
}
Geometry geometry () const
{
if( !geo_ )
{
ICoordProvider coords( insideGeo_, geometryInInside(), grid().coordFunction() );
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
geo_ = GeometryImpl( grid(), type(), coords );
}
return Geometry( geo_ );
}
GeometryType type () const { return hostIntersection().type(); }
int indexInInside () const
{
return hostIntersection().indexInInside();
}
int indexInOutside () const
{
return hostIntersection().indexInOutside();
}
FieldVector< ctype, dimensionworld >
integrationOuterNormal ( const FieldVector< ctype, dimension-1 > &local ) const
{
const LocalGeometry geoInInside = geometryInInside();
const int idxInInside = indexInInside();
auto refElement = referenceElement< ctype, dimension >( insideGeo_.type() );
FieldVector< ctype, dimension > x( geoInInside.global( local ) );
const typename ElementGeometryImpl::JacobianInverseTransposed &jit = insideGeo_.jacobianInverseTransposed( x );
FieldVector< ctype, dimension > refNormal = refElement.integrationOuterNormal( idxInInside );
FieldVector< ctype, dimensionworld > normal;
jit.mv( refNormal, normal );
if( !conforming() )
normal *= geoInInside.volume() / refElement.template geometry< 1 >( idxInInside ).volume();
normal *= jit.detInv();
//normal *= insideGeo_.integrationElement( x );
return normal;
}
FieldVector< ctype, dimensionworld >
outerNormal ( const FieldVector< ctype, dimension-1 > &local ) const
{
auto refElement = referenceElement< ctype, dimension >( insideGeo_.type() );
FieldVector< ctype, dimension > x( geometryInInside().global( local ) );
const typename ElementGeometryImpl::JacobianInverseTransposed &jit = insideGeo_.jacobianInverseTransposed( x );
FieldVector< ctype, dimension > refNormal = refElement.integrationOuterNormal( indexInInside() );
FieldVector< ctype, dimensionworld > normal;
jit.mv( refNormal, normal );
return normal;
}
FieldVector< ctype, dimensionworld >
unitOuterNormal ( const FieldVector< ctype, dimension-1 > &local ) const
{
FieldVector< ctype, dimensionworld > normal = outerNormal( local );
normal *= (ctype( 1 ) / normal.two_norm());
return normal;
}
FieldVector< ctype, dimensionworld > centerUnitOuterNormal () const
{
auto refFace = referenceElement< ctype, dimension-1 >( type() );
return unitOuterNormal( refFace.position( 0, 0 ) );
}
const HostIntersection &hostIntersection () const
{
return hostIntersection_;
}
const Grid &grid () const { return insideGeo_.grid(); }
private:
HostIntersection hostIntersection_;
ElementGeometryImpl insideGeo_;
mutable GeometryImpl geo_;
};
} // namespace crvsrf
} // namespace Dune
#endif // #ifndef DUNE_CRVSRF_INTERSECTION_HH