Developer Documentation
QuadNode.hh
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50 
51 
52 
53 //=============================================================================
54 //
55 // CLASS QuadNode
56 //
57 //=============================================================================
58 
59 #ifndef ACG_QUADNODE_HH
60 #define ACG_QUADNODE_HH
61 
62 //=============================================================================
63 
64 #include "BaseNode.hh"
65 #include <vector>
66 
67 //=============================================================================
68 
69 namespace ACG {
70 namespace SceneGraph {
71 
72 //=============================================================================
73 
74 
75 class ACGDLLEXPORT QuadNode : public BaseNode
76 {
77 
78 public:
79 
80  typedef std::vector<ACG::Vec3f> PointVector;
81 
82  QuadNode( BaseNode* _parent=0,
83  std::string _name="<QuadNode>" );
84  virtual ~QuadNode();
85 
86  ACG_CLASSNAME(QuadNode);
87 
88 
89  DrawModes::DrawMode availableDrawModes() const;
90 
91  void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);
92  void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);
93  void pick(GLState& _state, PickTarget _target);
94 
95  void add_quad( const ACG::Vec3f & _p0,
96  const ACG::Vec3f & _p1,
97  const ACG::Vec3f & _p2,
98  const ACG::Vec3f & _p3 )
99  {
100  point_.push_back( _p0 );
101  point_.push_back( _p1 );
102  point_.push_back( _p2 );
103  point_.push_back( _p3 );
104 
105  ACG::Vec3f n = ( _p1 - _p0 ) % ( _p2 - _p1 );
106  if ( n.norm() > 0.00001 )
107  n.normalize();
108  else
109  n = Vec3f( 0, 0, 0 );
110  normal_.push_back( n );
111  }
112 
113  void clear()
114  {
115  point_.clear();
116  normal_.clear();
117  }
118 
119 protected:
120 
121  enum FaceMode { FACE_NORMALS, FACE_COLORS, PER_VERTEX };
122 
123  void draw_vertices();
124  void draw_faces();
125  void draw_wireframe();
126 
127  PointVector point_;
128  PointVector normal_;
129 
130 };
131 
132 
133 //=============================================================================
134 } // namespace SceneGraph
135 } // namespace ACG
136 //=============================================================================
137 #endif // ACG_QUADNODE_HH defined
138 //=============================================================================
PickTarget
What target to use for picking.
Definition: BaseNode.hh:99
VectorT< float, 3 > Vec3f
Definition: VectorT.hh:125
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
auto normalize() -> decltype(*this/=std::declval< VectorT< S, DIM >>().norm())
Definition: Vector11T.hh:428
auto norm() const -> decltype(std::sqrt(std::declval< VectorT< S, DIM >>().sqrnorm()))
compute euclidean norm
Definition: Vector11T.hh:408