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TriangleNode.hh
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40 \*===========================================================================*/
41
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $Author$ *
46 * $Date$ *
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48 \*===========================================================================*/
49
50
51
52
53 //=============================================================================
54 //
55 // CLASS TriangleNode
56 //
57 //=============================================================================
58
59 #ifndef ACG_TRIANGLENODE_HH
60 #define ACG_TRIANGLENODE_HH
61
62 //=============================================================================
63
64 #include "BaseNode.hh"
65
66 #include <vector>
67
68 //=============================================================================
69
70 namespace ACG {
71 namespace SceneGraph {
72
73 //=============================================================================
74
75
76 class ACGDLLEXPORT TriangleNode : public BaseNode
77 {
78
79 public:
80
81 typedef std::vector<ACG::Vec3f> PointVector;
82
83 TriangleNode( BaseNode* _parent=0,
84 std::string _name="<TriangleNode>" );
85 virtual ~TriangleNode();
86
87 ACG_CLASSNAME(TriangleNode);
88
89
90 DrawModes::DrawMode availableDrawModes() const;
91
92 void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);
93 void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);
94 void pick(GLState& _state, PickTarget _target);
95
96 void add_triangle( const ACG::Vec3f & _p0,
97 const ACG::Vec3f & _p1,
98 const ACG::Vec3f & _p2 )
99 {
100 point_.push_back( _p0 );
101 point_.push_back( _p1 );
102 point_.push_back( _p2 );
103
104 ACG::Vec3f n = ( _p1 - _p0 ) % ( _p2 - _p1 );
105 if ( n.norm() > 0.00001 )
106 n.normalize();
107 else
108 n = Vec3f( 0, 0, 0 );
109 normal_.push_back( n );
110 }
111
112 void clear()
113 {
114 point_.clear();
115 normal_.clear();
116 }
117
118 size_t n_triangles() const { return point_.size() / 3; }
119
120 void triangle( int _i,
121 ACG::Vec3f & _p0,
122 ACG::Vec3f & _p1,
123 ACG::Vec3f & _p2 ) const
124 {
125 _p0 = point_[ 3 * _i + 0 ];
126 _p1 = point_[ 3 * _i + 1 ];
127 _p2 = point_[ 3 * _i + 2 ];
128 }
129
130 protected:
131
132 enum FaceMode { FACE_NORMALS, FACE_COLORS, PER_VERTEX };
133
134 void draw_vertices();
135 void draw_faces();
136 void draw_wireframe();
137
138 PointVector point_;
139 PointVector normal_;
140
141 };
142
143
144 //=============================================================================
145 } // namespace SceneGraph
146 } // namespace ACG
147 //=============================================================================
148 #endif // ACG_TRIMESHNODE_HH defined
149 //=============================================================================
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::SceneGraph::BaseNode
Definition: BaseNode.hh:135
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: BaseNode.hh:99
ACG::SceneGraph::TriangleNode
Definition: TriangleNode.hh:76
ACG::GLState
Definition: GLState.hh:220
ACG::SceneGraph::DrawModes::DrawMode
Specifies a DrawMode.
Definition: DrawModes.hh:294
ACG::Vec3f
VectorT< float, 3 > Vec3f
Definition: VectorT.hh:125
OpenMesh::VectorT
Definition: Vector11T.hh:83