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SoShape.h
1 #ifndef COIN_SOSHAPE_H
2 #define COIN_SOSHAPE_H
3 
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35 
36 #include <Inventor/nodes/SoSubNode.h>
38 #include <Inventor/SbMatrix.h>
39 #include <Inventor/SbVec2s.h>
40 #include <Inventor/SbBox3f.h>
41 
42 class SoPrimitiveVertex;
43 class SoDetail;
44 class SoPickedPoint;
45 class SoFaceDetail;
46 class SoState;
48 class SbVec2f;
49 class SoMaterialBundle;
50 class SoBoundingBoxCache;
51 
52 class COIN_DLL_API SoShape : public SoNode {
53  typedef SoNode inherited;
54 
56 
57 public:
58  static void initClass(void);
59 
61  TRIANGLE_STRIP, TRIANGLE_FAN, TRIANGLES, POLYGON,
62  // The rest of the enums are not part of the original Inventor API.
63  QUADS, QUAD_STRIP, POINTS, LINES, LINE_STRIP
64  };
65 
66  virtual SbBool affectsState(void) const;
67  virtual void notify(SoNotList * nl);
68 
69  virtual void getBoundingBox(SoGetBoundingBoxAction * action);
70  virtual void GLRender(SoGLRenderAction * action);
71  virtual void rayPick(SoRayPickAction * action);
72  virtual void callback(SoCallbackAction * action);
73  virtual void computeBBox(SoAction * action, SbBox3f & box,
74  SbVec3f & center) = 0;
75  virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action);
76 
77  static void getScreenSize(SoState * const state, const SbBox3f & boundingbox,
78  SbVec2s & rectsize);
79  static float getDecimatedComplexity(SoState * state, float complexity);
80  const SoBoundingBoxCache * getBoundingBoxCache(void) const;
81 
82 protected:
83  SoShape(void);
84  virtual ~SoShape();
85 
86  float getComplexityValue(SoAction * action);
87  virtual void generatePrimitives(SoAction * action) = 0;
88  virtual SbBool shouldGLRender(SoGLRenderAction * action);
89  void beginSolidShape(SoGLRenderAction * action);
90  void endSolidShape(SoGLRenderAction * action);
91  void GLRenderBoundingBox(SoGLRenderAction * action);
92  SbBool shouldPrimitiveCount(SoGetPrimitiveCountAction * action);
93 
94  SbBool shouldRayPick(SoRayPickAction * const action);
95  void computeObjectSpaceRay(SoRayPickAction * const action);
96  void computeObjectSpaceRay(SoRayPickAction * const action,
97  const SbMatrix & matrix);
98  virtual SoDetail * createTriangleDetail(SoRayPickAction * action,
99  const SoPrimitiveVertex * v1,
100  const SoPrimitiveVertex * v2,
101  const SoPrimitiveVertex * v3,
102  SoPickedPoint * pp);
103  virtual SoDetail * createLineSegmentDetail(SoRayPickAction * action,
104  const SoPrimitiveVertex * v1,
105  const SoPrimitiveVertex * v2,
106  SoPickedPoint * pp);
107  virtual SoDetail * createPointDetail(SoRayPickAction * action,
108  const SoPrimitiveVertex * v,
109  SoPickedPoint * pp);
110 
111  void invokeTriangleCallbacks(SoAction * const action,
112  const SoPrimitiveVertex * const v1,
113  const SoPrimitiveVertex * const v2,
114  const SoPrimitiveVertex * const v3);
115  void invokeLineSegmentCallbacks(SoAction * const action,
116  const SoPrimitiveVertex * const v1,
117  const SoPrimitiveVertex * const v2);
118  void invokePointCallbacks(SoAction * const action,
119  const SoPrimitiveVertex * const v);
120  void beginShape(SoAction * const action, const TriangleShape shapetype,
121  SoDetail * const detail = NULL);
122  void shapeVertex(const SoPrimitiveVertex * const v);
123  void endShape(void);
124 
125  void generateVertex(SoPrimitiveVertex * const pv,
126  const SbVec3f & point,
127  const SbBool useTexFunc,
128  const SoMultiTextureCoordinateElement * const tce,
129  const float s,
130  const float t,
131  const SbVec3f & normal);
132  void generateVertex(SoPrimitiveVertex * const pv,
133  const SbVec3f & point,
134  const SbBool useTexFunc,
135  const SoMultiTextureCoordinateElement * const tce,
136  const float s,
137  const float t,
138  const float r,
139  const SbVec3f & normal);
140 
141  SbBool startVertexArray(SoGLRenderAction * action,
142  const SoCoordinateElement * coords,
143  const SbVec3f * pervertexnormals,
144  const SbBool texpervertex,
145  const SbBool colorpervertex);
146 
147  void finishVertexArray(SoGLRenderAction * action,
148  const SbBool vbo,
149  const SbBool normpervertex,
150  const SbBool texpervertex,
151  const SbBool colorpervertex);
152 private:
153  class SoShapeP * pimpl;
154  void validatePVCache(SoGLRenderAction * action);
155  void getBBox(SoAction * action, SbBox3f & box, SbVec3f & center);
156  void rayPickBoundingBox(SoRayPickAction * action);
157  friend class soshape_primdata; // internal class
158  friend class so_generate_prim_private; // a very private class
159 };
160 
161 #endif // !COIN_SOSHAPE_H
The SbVec2f class is a 2 dimensional vector with floating point coordinates.
Definition: SbVec2f.h:49
The SoBase class is the top-level superclass for a number of class-hierarchies.
Definition: SoBase.h:45
The SoRayPickAction class does ray intersection with scene graphs.
Definition: SoRayPickAction.h:50
virtual void notify(SoNotList *l)
Definition: SoNode.cpp:461
virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action)
Definition: SoNode.cpp:894
The SoPrimitiveVertex class represents a single vertex of a generated primitive.
Definition: SoPrimitiveVertex.h:43
The SoMaterialBundle class simplifies material handling.
Definition: SoMaterialBundle.h:42
The SbBox3f class is an abstraction for an axis aligned 3 dimensional box.
Definition: SbBox3f.h:46
The SoMultiTextureCoordinateElement class is yet to be documented.
Definition: SoMultiTextureCoordinateElement.h:48
virtual SbBool affectsState(void) const
Definition: SoNode.cpp:831
The SoNode class is the base class for nodes used in scene graphs.
Definition: SoNode.h:56
The SoState class manages the Coin scene graph traversal state data.
Definition: SoState.h:44
The SoFaceDetail class is for storing detailed polygon information.
Definition: SoFaceDetail.h:38
virtual void rayPick(SoRayPickAction *action)
Definition: SoNode.cpp:1139
The SoBoundingBoxCache class is used to cache bounding boxes.
Definition: SoBoundingBoxCache.h:41
The SoCoordinateElement class is yet to be documented.
Definition: SoCoordinateElement.h:40
The SoAction class is the base class for all traversal actions.
Definition: SoAction.h:77
The SbVec3f class is a 3 dimensional vector with floating point coordinates.
Definition: SbVec3f.h:51
TriangleShape
Definition: SoShape.h:60
The SbMatrix class is a 4x4 dimensional representation of a matrix.
Definition: SbMatrix.h:47
The SoGetPrimitiveCountAction class counts the primitives in a scene.
Definition: SoGetPrimitiveCountAction.h:44
The SoGetBoundingBoxAction class calculates bounding boxes for nodes and subgraphs.
Definition: SoGetBoundingBoxAction.h:45
The SoPickedPoint class is used for specifying picked points.
Definition: SoPickedPoint.h:48
The SoCallbackAction class invokes callbacks at specific nodes.
Definition: SoCallbackAction.h:80
virtual void getBoundingBox(SoGetBoundingBoxAction *action)
Definition: SoNode.cpp:865
The SoShape class is the superclass for geometry shapes.
Definition: SoShape.h:52
virtual void GLRender(SoGLRenderAction *action)
Definition: SoNode.cpp:954
The SoNotList class is a list of SoNotRec notification records.
Definition: SoNotification.h:43
The SbVec2s class is a 2 dimensional vector with short integer coordinates.
Definition: SbVec2s.h:51
virtual void callback(SoCallbackAction *action)
Definition: SoNode.cpp:1026
#define SO_NODE_ABSTRACT_HEADER(classname)
The SoGLRenderAction class renders the scene graph with OpenGL calls.
Definition: SoGLRenderAction.h:50
The SoDetail class is the superclass for all classes storing detailed information about particular sh...
Definition: SoDetail.h:39