TGLBoundingBox

class TGLBoundingBox

    private:

      Double_t Max(UInt_t index) const
      Double_t Min(UInt_t index) const
          void UpdateCache()
        Bool_t ValidIndex(UInt_t index) const

    public:

                                TGLBoundingBox()
                                TGLBoundingBox(const TGLVertex3* vertex)
                                TGLBoundingBox(const Double_t** vertex)
                                TGLBoundingBox(const TGLVertex3& lowVertex, const TGLVertex3& highVertex)
                                TGLBoundingBox(const TGLBoundingBox& other)
                        virtual ~TGLBoundingBox()
              const TGLVector3& Axis(UInt_t i, Bool_t normalised = kTRUE) const
                     TGLVertex3 Center() const
                 static TClass* Class()
                           void Draw(Bool_t solid = kFALSE) const
                           void Dump() const
                     TGLVector3 Extents() const
          const vector<UInt_t>& FaceVertices(TGLBoundingBox::EFace face) const
                virtual TClass* IsA() const
                         Bool_t IsEmpty() const
                TGLBoundingBox& operator=(const TGLBoundingBox& other)
              const TGLVertex3& operator[](UInt_t index) const
                       EOverlap Overlap(const TGLPlane& plane) const
                       EOverlap Overlap(const TGLBoundingBox& box) const
                           void PlaneSet(TGLPlaneSet_t& planeSet) const
                           void Scale(Double_t factor)
                           void Scale(Double_t xFactor, Double_t yFactor, Double_t zFactor)
                           void Set(const TGLVertex3* vertex)
                           void Set(const Double_t** vertex)
                           void Set(const TGLBoundingBox& other)
                           void SetAligned(const TGLVertex3& lowVertex, const TGLVertex3& highVertex)
                           void SetAligned(UInt_t nbPnts, const Double_t* pnts)
                           void SetEmpty()
                   virtual void ShowMembers(TMemberInspector& insp, char* parent)
                   virtual void Streamer(TBuffer& b)
                           void StreamerNVirtual(TBuffer& b)
                           void Transform(const TGLMatrix& matrix)
                           void Translate(const TGLVector3& offset)
              const TGLVertex3& Vertex(UInt_t index) const
      const vector<TGLVertex3>& Vertices() const
                       Double_t Volume() const
                       Double_t XMax() const
                       Double_t XMin() const
                       Double_t YMax() const
                       Double_t YMin() const
                       Double_t ZMax() const
                       Double_t ZMin() const

Data Members

    private:

      vector<TGLVertex3> fVertex       ! the 8 bounding box vertices
                Double_t fVolume       ! box volume - cached for speed
              TGLVector3 fAxes[3]      ! box axes in global frame - cached for speed
              TGLVector3 fAxesNorm[3]  ! normalised box axes in global frame - cached for speed

    public:

      static const TGLBoundingBox::EFace kFaceLowX   
      static const TGLBoundingBox::EFace kFaceHighX  
      static const TGLBoundingBox::EFace kFaceLowY   
      static const TGLBoundingBox::EFace kFaceHighY  
      static const TGLBoundingBox::EFace kFaceLowZ   
      static const TGLBoundingBox::EFace kFaceHighZ  
      static const TGLBoundingBox::EFace kFaceCount  

                                                                      
 TGLBoundingBox                                                       
                                                                      
 Concrete class describing an orientated (free) or axis aligned box   
 of 8 verticies. Supports methods for setting aligned or orientated   
 boxes, find volume, axes, extents, centers, face planes etc.         
 Also tests for overlap testing of planes and other bounding boxes,   
 with fast sphere approximation.                                      

 Construct an empty bounding box

 Construct a bounding box from provided 8 vertices

 Construct a bounding box from provided 8 vertices

 Construct an global axis ALIGNED bounding box from provided low/high vertex pair

 Construct a bounding box as copy of existing one

 Destroy bounding box

 Update the internally cached volume and axes vectors - these are retained
 for efficiency - many more reads than modifications

 Set a bounding box from provided 8 vertices

 Set a bounding box from provided 8 vertices

 Set a bounding box from vertices of other

 Set bounding box empty - all vertices at (0,0,0)

 Set ALIGNED box from two low/high vertices. Box axes are aligned with
 global frame axes that vertices are specified in.

 Set ALIGNED box from one or more points. Box axes are aligned with
 global frame axes that points are specified in.

 Isotropically scale bounding box along it's LOCAL axes, preserving center

 Asymetrically scale box along it's LOCAL x,y,z axes, preserving center

 Translate all vertices by offset

 Transform all vertices with matrix

return a vector of face vertices
    y
    |
    |
    |________x
   /  3-------2
  /  /|      /|
 z  7-------6 |
    | 0-----|-1
    |/      |
    4-------5

 Fill out supplied plane set vector with TGLPlane objects
 representing six faces of box

 Find overlap (Inside, Outside, Partial) of plane c.f. bounding box

 Find overlap (Inside, Outside, Partial) of other bounding box c.f. us

 Draw the bounding box as either wireframe (default) of solid using current GL color

 Find minimum vertex value for axis of index X(0), Y(1), Z(2)

 Find maximum vertex value for axis of index X(0), Y(1), Z(2)

 Output to std::cout the vertices, center and volume of box

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 Multiple vertices accessors

 Other properties