SoCallbackAction — performs a generic traversal of the scene graph

       This action defines a generic traversal of the scene graph. The user can specify callback  functions  for
       node types or paths; when those node types or paths are encountered during traversal, the user's callback
       function is called.

       In  addition, callback functions can be registered for primitives generated by shapes in the scene graph.
       Most shape types can generate  primitives  that  represent  or  approximate  their  geometries.  Triangle
       primitives  are used for all surfaces (such as cubes, face sets, or 3D text), linesegment primitives are
       used for line shapes, and point primitives are used for point shapes. Note that the  type  of  primitives
       generated for a shape is the same, regardless of drawing style or other properties.

       Most of the methods on this class access information from the traversal state. They should be called only
       by callback functions that are invoked during traversal, so there is a valid state to work with.

       SoAction > SoCallbackAction

SoCallbackAction()
          The constructor.

     voidaddPreCallback(SoTypetype,SoCallbackActionCB*cb,void*data)voidaddPostCallback(SoTypetype,SoCallbackActionCB*cb,void*data)
          These  add  a callback function to call when a node of the given type is encountered during traversal.
          The PreCallback is called just before the node is traversed,  and  the  PostCallback  is  called  just
          after.   The  value  returned by a callback function indicates whether the action should continue with
          the traversal.

     voidaddPreTailCallback(SoCallbackActionCB*cb,void*data)voidaddPostTailCallback(SoCallbackActionCB*cb,void*data)
          These can be used to set up callback functions to call when the action  is  applied  to  a  path.  The
          functions are called just before or after the node at the tail of the path is traversed.

     voidaddTriangleCallback(SoTypetype,SoTriangleCB*cb,void*data)voidaddLineSegmentCallback(SoTypetype,SoLineSegmentCB*cb,void*data)voidaddPointCallback(SoTypetype,SoPointCB*cb,void*data)
          Routines  to  add  callbacks  for  generated primitives (triangles, line segments, and points) for all
          shapes of the given type. The callback function will be called for each primitive  generated  for  all
          shapes of or derived from that type.

     floatgetComplexity()constSoComplexity::TypegetComplexityType()const
          Returns complexity information from the state.

     int32_tgetNumCoordinates()constconstSbVec3f&getCoordinate3(intindex)constconstSbVec4f&getCoordinate4(intindex)const
          Returns the current coordinates from the state.

     SoDrawStyle::StylegetDrawStyle()constunsignedshortgetLinePattern()constfloatgetLineWidth()constfloatgetPointSize()const
          Returns the current drawing style information from the state.

     constSbName&getFontName()constfloatgetFontSize()const
          Returns the current font information from the state.

     SoLightModel::ModelgetLightModel()constconstSbVec3f&getLightAttenuation()const
          Returns the current lighting model information from the state.

     voidgetMaterial(SbColor&ambient,SbColor&diffuse,SbColor&specular,SbColor&emission,float&shininess,float&transparency,intmtlIndex=0)constSoMaterialBinding::BindinggetMaterialBinding()const
          Returns the current material information from the state. Providing a mtlIndex will return the material
          defined for that index.

     longgetNumNormals()constconstSbVec3f&getNormal(intindex)constSoNormalBinding::BindinggetNormalBinding()const
          Returns the current normal information from the state.

     int32_tgetNumProfileCoordinates()constconstSbVec2f&getProfileCoordinate2(intindex)constconstSbVec3f&getProfileCoordinate3(intindex)constconstSoNodeList&getProfile()const
          Returns the current profiles and their coordinates from the state.

     SoShapeHints::VertexOrderinggetVertexOrdering()constSoShapeHints::ShapeTypegetShapeType()constSoShapeHints::FaceTypegetFaceType()constfloatgetCreaseAngle()const
          Returns the current shape hints from the state.

     int32_tgetNumTextureCoordinates()constconstSbVec2f&getTextureCoordinate2(intindex)constconstSbVec4f&getTextureCoordinate4(intindex)constSoTextureCoordinateBinding::BindinggetTextureCoordinateBinding()constconstSbColor&getTextureBlendColor()constconstunsignedchar*getTextureImage(SbVec2s&size,int&numComps)const
          Returns  texture  information  from  the  state.  getNumTextureCoordinates()   returns  0  if  texture
          coordinates are generated by a function. getTextureImage()  returns NULL if no texture is enabled.

     constSbMatrix&getTextureMatrix()constSoTexture2::ModelgetTextureModel()constSoTexture2::WrapgetTextureWrapS()constSoTexture2::WrapgetTextureWrapT()const
          Returns the current texture mapping information from the state.

     constSbMatrix&getModelMatrix()constSoUnits::UnitsgetUnits()const
          Returns the current modeling transformation and the current units from the state.

     floatgetFocalDistance()constconstSbMatrix&getProjectionMatrix()constconstSbMatrix&getViewingMatrix()constconstSbViewVolume&getViewVolume()const
          Returns the current camera and viewing information from the state.

     SoPickStyle::StylegetPickStyle()const
          Returns the current picking style.

     int32_tgetSwitch()const
          Returns the current switch value.

       SoCallbackAction — performs a generic traversal of the scene graph

SoCallback,SoEventCallback,SoShapeSoCallbackAction(3IV)()

#include<Inventor/actions/SoCallbackAction.h>typedefvoidSoTriangleCB(void*userData,SoCallbackAction*action,constSoPrimitiveVertex*v1,constSoPrimitiveVertex*v2,constSoPrimitiveVertex*v3)typedefvoidSoLineSegmentCB(void*userData,SoCallbackAction*action,constSoPrimitiveVertex*v1,constSoPrimitiveVertex*v2)typedefvoidSoPointCB(void*userData,SoCallbackAction*action,constSoPrimitiveVertex*v)typedefSoCallbackAction::ResponseSoCallbackActionCB(void*userData,SoCallbackAction*action,constSoNode*node)enumResponse{SoCallbackAction::CONTINUE  Continue traversal as if nothing happened
          SoCallbackAction::ABORT     Abort traversal
          SoCallbackAction::PRUNE     Do not traverse node's children, but continue traversal
     }

          Methods from class SoCallbackAction:

                                 SoCallbackAction()voidaddPreCallback(SoTypetype,SoCallbackActionCB*cb,void*data)voidaddPostCallback(SoTypetype,SoCallbackActionCB*cb,void*data)voidaddPreTailCallback(SoCallbackActionCB*cb,void*data)voidaddPostTailCallback(SoCallbackActionCB*cb,void*data)voidaddTriangleCallback(SoTypetype,SoTriangleCB*cb,void*data)voidaddLineSegmentCallback(SoTypetype,SoLineSegmentCB*cb,void*data)voidaddPointCallback(SoTypetype,SoPointCB*cb,void*data)floatgetComplexity()constSoComplexity::TypegetComplexityType()constint32_tgetNumCoordinates()constconstSbVec3f&getCoordinate3(intindex)constconstSbVec4f&getCoordinate4(intindex)constSoDrawStyle::StylegetDrawStyle()constunsignedshortgetLinePattern()constfloatgetLineWidth()constfloatgetPointSize()constconstSbName&getFontName()constfloatgetFontSize()constSoLightModel::ModelgetLightModel()constconstSbVec3f&getLightAttenuation()constvoidgetMaterial(SbColor&ambient,SbColor&diffuse,SbColor&specular,SbColor&emission,float&shininess,float&transparency,intmtlIndex=0)constSoMaterialBinding::BindinggetMaterialBinding()constlonggetNumNormals()constconstSbVec3f&getNormal(intindex)constSoNormalBinding::BindinggetNormalBinding()constint32_tgetNumProfileCoordinates()constconstSbVec2f&getProfileCoordinate2(intindex)constconstSbVec3f&getProfileCoordinate3(intindex)constconstSoNodeList&getProfile()constSoShapeHints::VertexOrderinggetVertexOrdering()constSoShapeHints::ShapeTypegetShapeType()constSoShapeHints::FaceTypegetFaceType()constfloatgetCreaseAngle()constint32_tgetNumTextureCoordinates()constconstSbVec2f&getTextureCoordinate2(intindex)constconstSbVec4f&getTextureCoordinate4(intindex)constSoTextureCoordinateBinding::BindinggetTextureCoordinateBinding()constconstSbColor&getTextureBlendColor()constconstunsignedchar*getTextureImage(SbVec2s&size,int&numComps)constconstSbMatrix&getTextureMatrix()constSoTexture2::ModelgetTextureModel()constSoTexture2::WrapgetTextureWrapS()constSoTexture2::WrapgetTextureWrapT()constconstSbMatrix&getModelMatrix()constSoUnits::UnitsgetUnits()constfloatgetFocalDistance()constconstSbMatrix&getProjectionMatrix()constconstSbMatrix&getViewingMatrix()constconstSbViewVolume&getViewVolume()constSoPickStyle::StylegetPickStyle()constint32_tgetSwitch()const

          Methods from class SoAction:

     virtualvoidapply(SoNode*node)virtualvoidapply(SoPath*path)virtualvoidapply(constSoPathList&pathList,SbBoolobeysRules=FALSE)staticSoTypegetClassTypeId()virtualSoTypegetTypeId()virtualSbBoolisOfType(SoTypetype)virtualvoidinvalidateState()