Developer Documentation
QuadNode.hh
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45 
46 
47 //=============================================================================
48 //
49 // CLASS QuadNode
50 //
51 //=============================================================================
52 
53 #ifndef ACG_QUADNODE_HH
54 #define ACG_QUADNODE_HH
55 
56 //=============================================================================
57 
58 #include "BaseNode.hh"
59 #include <vector>
60 
61 //=============================================================================
62 
63 namespace ACG {
64 namespace SceneGraph {
65 
66 //=============================================================================
67 
68 
69 class ACGDLLEXPORT QuadNode : public BaseNode
70 {
71 
72 public:
73 
74  typedef std::vector<ACG::Vec3f> PointVector;
75 
76  QuadNode( BaseNode* _parent=0,
77  const std::string& _name="<QuadNode>" );
78  virtual ~QuadNode();
79 
80  ACG_CLASSNAME(QuadNode);
81 
82 
83  DrawModes::DrawMode availableDrawModes() const override;
84 
85  void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax) override;
86  void draw(GLState& _state, const DrawModes::DrawMode& _drawMode) override;
87  void pick(GLState& _state, PickTarget _target) override;
88 
89  void add_quad( const ACG::Vec3f & _p0,
90  const ACG::Vec3f & _p1,
91  const ACG::Vec3f & _p2,
92  const ACG::Vec3f & _p3 )
93  {
94  point_.push_back( _p0 );
95  point_.push_back( _p1 );
96  point_.push_back( _p2 );
97  point_.push_back( _p3 );
98 
99  ACG::Vec3f n = ( _p1 - _p0 ) % ( _p2 - _p1 );
100  if ( n.norm() > 0.00001 )
101  n.normalize();
102  else
103  n = Vec3f( 0, 0, 0 );
104  normal_.push_back( n );
105  }
106 
107  void clear()
108  {
109  point_.clear();
110  normal_.clear();
111  }
112 
113 protected:
114 
115  enum FaceMode { FACE_NORMALS, FACE_COLORS, PER_VERTEX };
116 
117  void draw_vertices();
118  void draw_faces();
119  void draw_wireframe();
120 
121  PointVector point_;
122  PointVector normal_;
123 
124 };
125 
126 
127 //=============================================================================
128 } // namespace SceneGraph
129 } // namespace ACG
130 //=============================================================================
131 #endif // ACG_QUADNODE_HH defined
132 //=============================================================================
Namespace providing different geometric functions concerning angles.
PickTarget
What target to use for picking.
Definition: PickTarget.hh:73
VectorT< float, 3 > Vec3f
Definition: VectorT.hh:119
auto norm() const -> decltype(std::sqrt(std::declval< VectorT< S, DIM >>().sqrnorm()))
compute euclidean norm
Definition: Vector11T.hh:433
auto normalize() -> decltype(*this/=std::declval< VectorT< S, DIM >>().norm())
Definition: Vector11T.hh:453