Package com.openinventor.inventor.nodes
Class SoLOD
- java.lang.Object
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- All Implemented Interfaces:
SafeDisposable
- Direct Known Subclasses:
SoLevelOfSimplification
public class SoLOD extends SoGroup
Distance-based level-of-detail switching group node. 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:
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.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 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 anSoInfo
node can also be useful if you want the object to disappear if it gets too close to the eyepoint.File format/default:
LOD {
center 0 0 0 range [ ] Action behavior:
SoGLRenderAction
,SoRayPickAction
,SoCallbackAction
Only the child with the appropriate level of detail is traversed.Other actions
All implemented as for
SoGroup
.- See Also:
SoSwitch
,SoGroup
,SoLevelOfDetail
,SoLevelOfSimplification
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Nested Class Summary
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Nested classes/interfaces inherited from class com.openinventor.inventor.nodes.SoNode
SoNode.RenderModes
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Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor
Inventor.ConstructorCommand
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Field Summary
Fields Modifier and Type Field Description SoSFVec3f
center
Object-space center of the model.SoMFFloat
range
World-space distances to use as switching criteria.-
Fields inherited from class com.openinventor.inventor.nodes.SoGroup
boundingBoxIgnoring
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Fields inherited from class com.openinventor.inventor.Inventor
VERBOSE_LEVEL, ZeroHandle
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Method Summary
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Methods inherited from class com.openinventor.inventor.nodes.SoGroup
addChild, findChild, getChild, getNumChildren, insertChild, removeAllChildren, removeChild, removeChild, replaceChild, replaceChild
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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
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Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer
copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults
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Methods inherited from class com.openinventor.inventor.misc.SoBase
dispose, getName, isDisposable, isSynchronizable, setName, setSynchronizable
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Methods inherited from class com.openinventor.inventor.Inventor
getNativeResourceHandle
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