SoLOD — distance-based level-of-detail switching group node

SoGLRenderAction,SoRayPickAction,SoCallbackAction
          Only the child with the appropriate level of detail is traversed.

     others
          All implemented as for SoGroup.

       This  group  node  is  used  to  allow  applications to switch between various representations of objects
       automatically. The children of this node typically represent the same object or objects at varying levels
       of detail, from highest detail to lowest. The distance from the world-space eye point to the  transformed
       center of the LOD is computed, and one child is drawn, based on the values in the ranges field.

       More  precisely,  if  the  distance  from the world-space eyepoint to the transformed center is D and the
       ranges array contains LAST_RANGE+1 values (numbered 0...LAST_RANGE), then:

              if D < ranges[0]                    : Child 0 is drawn
              else if ranges[i-1] < D < ranges[i] : Child i is drawn
              else if D > ranges[LAST_RANGE]      : Child LAST_RANGE+1 is drawn

     Thus, N ranges and N+1 children should be specified. If you specify too few children, the last  child  will
     be used for the extra ranges. If you specify too few ranges, the extra children will never be used.

     It  is  often  useful  to  define  the  lowest detail child to be an SoInfo node. This causes the object to
     completely disappear if it is far enough away from the eyepoint. Defining the highest detail child to be an
     SoInfo node can also be useful if you want the object to disappear if it gets too close to the eyepoint.

SoMFFloatrange
          World-space distances to use as switching criteria.

     SoSFVec3fcenter
          Object-space center of the model.

LOD{center000range[]}

       SoBase > SoFieldContainer > SoNode > SoGroup > SoLOD

SoLOD()
          Creates a distance-based level-of-detail node with default settings.

     staticSoTypegetClassTypeId()
          Returns type identifier for this class.

       SoLOD — distance-based level-of-detail switching group node

SoSwitch,SoGroupSoLOD(3IV)()

#include<Inventor/nodes/SoLOD.h>

          Fields from class SoLOD:

     SoMFFloatrangeSoSFVec3fcenter

          Methods from class SoLOD:

                         SoLOD()staticSoTypegetClassTypeId()

          Methods from class SoGroup:

     voidaddChild(SoNode*child)voidinsertChild(SoNode*child,intnewChildIndex)SoNode*getChild(intindex)constintfindChild(constSoNode*child)constintgetNumChildren()constvoidremoveChild(intindex)voidremoveChild(SoNode*child)voidremoveAllChildren()voidreplaceChild(intindex,SoNode*newChild)voidreplaceChild(SoNode*oldChild,SoNode*newChild)

          Methods from class SoNode:

     voidsetOverride(SbBoolstate)SbBoolisOverride()constSoNode*copy(SbBoolcopyConnections=FALSE)constvirtualSbBoolaffectsState()conststaticSoNode*getByName(constSbName&name)staticintgetByName(constSbName&name,SoNodeList&list)

          Methods from class SoFieldContainer:

     voidsetToDefaults()SbBoolhasDefaultValues()constSbBoolfieldsAreEqual(constSoFieldContainer*fc)constvoidcopyFieldValues(constSoFieldContainer*fc,SbBoolcopyConnections=FALSE)SbBoolset(constchar*fieldDataString)voidget(SbString&fieldDataString)virtualintgetFields(SoFieldList&resultList)constvirtualSoField*getField(constSbName&fieldName)constSbBoolgetFieldName(constSoField*field,SbName&fieldName)constSbBoolisNotifyEnabled()constSbBoolenableNotify(SbBoolflag)

          Methods from class SoBase:

     voidref()voidunref()constvoidunrefNoDelete()constvoidtouch()virtualSoTypegetTypeId()constSbBoolisOfType(SoTypetype)constvirtualvoidsetName(constSbName&name)virtualSbNamegetName()const