com.openinventor.inventor.collision

Class SoIntersectionDetectionAction

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.actions.SoAction

com.openinventor.inventor.collision.SoIntersectionDetectionAction

public class SoIntersectionDetectionAction
extends SoAction

Class to detect intersections. This action allows the programmer to analyze a scene graph to know which pairs of objects within the scene intersect.

The action first detects intersections between pairs of bounding boxes. If such an intersection occurs, the programmer can abort the action or allow it to determine if the primitives of the objects actually collide.

The algorithm can call programmer-supplied callbacks when there is an intersection between two objects.

See also:

SoCollisionManager, SoWinCollisionViewer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SoIntersectionDetectionAction.Axis Axis.
static class	SoIntersectionDetectionAction.Positions Position.
static class	SoIntersectionDetectionAction.Resps Types definitions.

Nested classes/interfaces inherited from class com.openinventor.inventor.actions.SoAction

SoAction.AppliedCodes, SoAction.DistribModes, SoAction.PathCodes, SoAction.PathIndices

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoIntersectionDetectionAction() Constructor.

Method Summary

Modifier and Type	Method and Description
static void	enableElement(java.lang.Class<? extends Inventor> t, int stkIndex)
static float	getIntersectEpsilon() Queries epsilon (small value) to be used in the collision computation.
static void	setIntersectEpsilon(float epsilon) Sets epsilon (small value) to be used in the collision computation.

Methods inherited from class com.openinventor.inventor.actions.SoAction

apply, apply, clearApplyResult, forwardTraversal, getContinueActionInBranchFlag, getCurPath, getDistribMode, getNodeAppliedTo, getOriginalPathListAppliedTo, getPathAppliedTo, getPathCode, getPathListAppliedTo, getPipeId, getSceneManager, getState, getWhatAppliedTo, hasTerminated, invalidateState, isBeingApplied, isLastPathListAppliedTo, isUsingAlternateRep, nullAction, postDelayedTraversal, preDelayedTraversal, resetContinueActionInBranchFlag, setPipeId, setSceneManager, setUpState, stopActionInBranch, traverse, useAlternateRep

Methods inherited from class com.openinventor.inventor.Inventor

dispose, getNativeResourceHandle

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SoIntersectionDetectionAction

public SoIntersectionDetectionAction()

Constructor.

Method Detail

enableElement

public static void enableElement(java.lang.Class<? extends Inventor> t,
                                 int stkIndex)

setIntersectEpsilon

public static void setIntersectEpsilon(float epsilon)

Sets epsilon (small value) to be used in the collision computation. If the distance between two objects is less than epsilon, the objects are considered to have collided.

getIntersectEpsilon

public static float getIntersectEpsilon()

Queries epsilon (small value) to be used in the collision computation.