Developer Documentation

VectorAdapter.hh
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41
42
43
44 // ----------------------------------------------------------------------------
45
46 #ifndef OPENMESH_KERNEL_OSG_VECTORADAPTER_HH
47 #define OPENMESH_KERNEL_OSG_VECTORADAPTER_HH
48
49
50 //== INCLUDES =================================================================
51
52 #include <osg/Geometry>
53 #include <OpenMesh/Core/Utils/vector_cast.hh>
54
55 //== NAMESPACES ===============================================================
56
57 namespace OpenMesh {
58
59 //== CLASS DEFINITION =========================================================
60
61 // ----------------------------------------------------------------- class ----
62
63 #define OSG_VECTOR_TRAITS( VecType ) \
64 template <> struct vector_traits< VecType > { \
65 typedef VecType vector_type; \
66 typedef vector_type::ValueType value_type; \
67 typedef GenProg::Int2Type< vector_type::_iSize > typed_size; \
68 \
69 static const size_t size_ = vector_type::_iSize; \
70 static size_t size() { return size_; } \
71 }
72
74 OSG_VECTOR_TRAITS( osg::Pnt4f );
76 OSG_VECTOR_TRAITS( osg::Pnt3f );
78 OSG_VECTOR_TRAITS( osg::Pnt2f );
79
81 OSG_VECTOR_TRAITS( osg::Vec4f );
83 OSG_VECTOR_TRAITS( osg::Vec3f );
85 OSG_VECTOR_TRAITS( osg::Vec2f );
86
88 OSG_VECTOR_TRAITS( osg::Pnt4d );
90 OSG_VECTOR_TRAITS( osg::Pnt3d );
92 OSG_VECTOR_TRAITS( osg::Pnt2d );
93
95 OSG_VECTOR_TRAITS( osg::Vec4d );
97 OSG_VECTOR_TRAITS( osg::Vec3d );
98
100 OSG_VECTOR_TRAITS( osg::Vec4ub );
101
102
103 // ----------------------------------------------------------------------------
104
105
106 #define OSG_COLOR_TRAITS( VecType, N ) \
107 template <> struct vector_traits< VecType > { \
108 typedef VecType vector_type; \
109 typedef vector_type::ValueType value_type; \
110 typedef GenProg::Int2Type< N > typed_size; \
111 \
112 static const size_t size_ = N; \
113 static size_t size() { return size_; } \
114 }
115
116
118 OSG_COLOR_TRAITS( osg::Color3ub, 3 );
120 OSG_COLOR_TRAITS( osg::Color4ub, 4 );
122 OSG_COLOR_TRAITS( osg::Color3f, 3 );
124 OSG_COLOR_TRAITS( osg::Color4f, 4 );
125
126 #undef OSG_VECTOR_TRAITS
127
128
129 // ----------------------------------------
130 #if 1
131 #define PNT2VEC_CASTER( DST, SRC ) \
132 template <> struct vector_caster< DST, SRC > { \
133 typedef DST dst_t; \
134 typedef SRC src_t; \
135 typedef const dst_t& return_type; \
136 inline static return_type cast( const src_t& _src ) {\
137 return _src.subZero(); \
138 } \
139 }
140
142 PNT2VEC_CASTER( osg::Vec3f, osg::Pnt3f );
143
145 PNT2VEC_CASTER( osg::Vec4f, osg::Pnt4f );
146
148 PNT2VEC_CASTER( osg::Vec3d, osg::Pnt3d );
149
151 PNT2VEC_CASTER( osg::Vec4d, osg::Pnt4d );
152
153 #undef PNT2VEC
154 #else
155
156 template <>
157 struct vector_caster< osg::Vec3f, osg::Pnt3f >
158 {
159 typedef osg::Vec3f dst_t;
160 typedef osg::Pnt3f src_t;
161
162 typedef const dst_t& return_type;
163 inline static return_type cast( const src_t& _src )
164 {
165 std::cout << "casting Pnt3f to Vec3f\n";
166 return _src.subZero();
167 }
168 };
169
170 #endif
171 // ----------------------------------------
172
174 inline
176 osg::Vec3f::ValueType dot( const osg::Vec3f &_v1, const osg::Vec3f &_v2 )
177 { return _v1.dot(_v2); }
178
179
180 inline
181 osg::Vec3f::ValueType dot( const osg::Vec3f &_v1, const osg::Pnt3f &_v2 )
182 { return _v1.dot(_v2); }
183
184
185 inline
186 osg::Vec2f::ValueType dot( const osg::Vec2f &_v1, const osg::Vec2f &_v2 )
187 { return _v1.dot(_v2); }
188
189
190 inline
191 osg::Vec3f cross( const osg::Vec3f &_v1, const osg::Vec3f &_v2 )
192 { return _v1.cross(_v2); }
194
195 //=============================================================================
196 } // namespace OpenMesh
197 //=============================================================================
198 #endif // OPENMESH_VECTORADAPTER_HH defined
199 //=============================================================================
200
OpenMesh::cross
osg::Vec3f cross(const osg::Vec3f &_v1, const osg::Vec3f &_v2)
Adapter for osg vector member computing a scalar product.
Definition: VectorAdapter.hh:191
OpenMesh::PNT2VEC_CASTER
PNT2VEC_CASTER(osg::Vec3f, osg::Pnt3f)
convert Pnt3f to Vec3f
OpenMesh::OSG_COLOR_TRAITS
OSG_COLOR_TRAITS(osg::Color3ub, 3)
Vector traits for OpenSG color type.
OpenMesh::VectorT< float, 3 >
OpenMesh
Definition: MeshItems.hh:59
OpenMesh::OSG_VECTOR_TRAITS
OSG_VECTOR_TRAITS(osg::Pnt4f)
Vector traits for OpenSG vector type.
OpenMesh::dot
osg::Vec3f::ValueType dot(const osg::Vec3f &_v1, const osg::Vec3f &_v2)
Adapter for osg vector member computing a scalar product.
Definition: VectorAdapter.hh:176