- All Implemented Interfaces:
public class SoLevelOfSimplification extends SoLODLevel-of-detail switching node designed for grouping simplified versions of the same shape. This group node is used to group the results of simplifying a shape, such that every child represents the same model but with a different number of primitives. Since it is derived from
SoLOD, it can behave as a distance-based level-of-detail node; however, it also responds to the decimation percentage element. It records what percentage decimation each child is, and then chooses the appropriate child based on the DecimationPercentage and DecimationType elements.
You should specify N percentages for N+1 children. If the DecimationType is HIGHEST or LOWEST, then the LevelOfSimplification node will automatically choose the first or last child, respectively. If the DecimationType is PERCENTAGE, then the node will choose child "i" based on the decimation percentage element value such that:
If the DecimationType is AUTOMATIC, then the child is chosen based on the range value in the usual
percentages[i-1] <= DecimationPercentage < percentages[i]
SoLODmanner, but no child greater than the value of the DecimationPercentage element will be chosen.
This node also has a field for recording how many triangles the full detail child contains. This allows this node to answer an
SoGetPrimitiveCountActionwithout traversing its children. This is a benefit when some children contain WWWInline , a common occurrence. If the children contain some non-triangle primitives, then the field should be -1 which will force the node to traverse its children during
percentages  numTriangles -1 center 0 0 0 range [ ]
A child is chosen in the same way as in GLRender. If the
numTrianglesfield is greater than 0, the percentage value for this child is multiplied by the
numTrianglesvalue and this value is added to the PrimitiveCount without traversing the child. If
numTrianglesis less than or equal to 0, then the child is traversed to get the count.
Implemented as for
Fields Modifier and Type Field Description
numTrianglesNumber of triangles in highest (1.0) case.
percentagesPercentage decimation for each child.
Methods inherited from class com.openinventor.inventor.nodes.SoGroup
addChild, findChild, getChild, getNumChildren, insertChild, removeAllChildren, removeChild, removeChild, replaceChild, replaceChild
Methods inherited from class com.openinventor.inventor.nodes.SoNode
affectsState, callback, copy, copy, distribute, doAction, getAlternateRep, getBoundingBox, getByName, getMatrix, getPrimitiveCount, getRenderEngineMode, getRenderUnitID, GLRender, GLRenderBelowPath, GLRenderInPath, GLRenderOffPath, grabEventsCleanup, grabEventsSetup, handleEvent, isBoundingBoxIgnoring, isOverride, pick, rayPick, search, setOverride, touch, write
Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer
copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults
Methods inherited from class com.openinventor.inventor.misc.SoBase
dispose, getName, isDisposable, isSynchronizable, setName, setSynchronizable
public final SoMFFloat percentagesPercentage decimation for each child. Should be numbers between 0.0 and 1.0, with 1.0 representing full detail and 0.0 representing bounding box detail.
public final SoSFInt32 numTrianglesNumber of triangles in highest (1.0) case. Can be -1 if unknown or if children contain primitives other than triangles.