OdGiCollisionDetector Class Reference

#include <GiIntersectionsCalculator.h>

Inheritance diagram for OdGiCollisionDetector:

Classes
struct	DetectedCollision

Public Member Functions
	OdGiCollisionDetector ()
virtual	~OdGiCollisionDetector ()
void	detectCollisions (OdInt32 containerID, const OdGeExtents3d &extents)
void	getCollisions (OdList< OdInt32 > &result)
bool	getCollisionDistance (OdUInt32 collisionIndex, double &result) const
virtual void	finalizeCalculations ()
void	clearContainersToBeTested ()
void	setIntersectionsOnly (bool b)
bool	isIntersectionsOnly () const
void	setClearance (double cl)
bool	isClearance () const
double	getClearance () const
void	setCalcDistance (bool b)
bool	getCalcDistance () const
void	setCheckAll (bool b)
bool	getCheckAll () const
Public Member Functions inherited from OdGiIntersectionsCalculator
	OdGiIntersectionsCalculator ()
virtual	~OdGiIntersectionsCalculator ()
OdInt32	appendTriangleContainer (OdGiIntersectTrianglesVector *pContainer)
OdInt32	addTriangleToContainer (OdInt32 containerID, const OdGePoint3d *pTriangle)
OdInt32	addContainerToBeTested (OdInt32 containerID)
void	computeIntersections (OdInt32 containerID, OdGeExtents3d &extents)
virtual void	initializeCalculations (OdGeExtents3d &ext, OdInt32 nObjects)
void	intermediatefinalizeCalculations ()
void	processTrianglesIntoSpaceTree (OdUInt32 objID, bool bOtherObjectsProcessed)
void	processPathCalculation (OdUInt32 idObjTested)
const OdGeTol &	tolerance () const
void	setTolerance (const OdGeTol &tol)
bool &	facesActive ()
bool	getSpaceTreeRootExtents (OdGeExtents3d &ext)
OdUInt32	triangleContainerSize () const
OdUInt32	containerToBeTestedSize () const
void	removeEdgeInfo (OdInt32 objID)
OdList< OdGiExtents3dSpaceChainPolyline * > &	finalIntersectionPathes ()
OdArray< OdGiExtents3dSpacePoint * > *	intersectionVertices ()
OdArray< OdGiEdgeForIntersectTest * > *	intersectionEdges ()

Protected Types
enum	CollisionOption { kOption_IntersectionOnly = 1 , kOption_Clearance = 2 , kOption_CalcDistance = 4 , kOption_CheckAll = 8 }

Protected Member Functions
virtual bool	notifyObjectPlacedAtNode (OdGiTriangleForIntersectTest *pTriang, int objectType, OdGiExtents3dSpaceNode_Gi *pNode)
void	computeIntersections (OdInt32 containerID, OdGeExtents3d &extents)
void	processPathCalculation (OdUInt32 idObjTested)
void	removeEdgeInfo (OdInt32 objID)
OdList< OdGiExtents3dSpaceChainPolyline * > &	finalIntersectionPathes ()
OdArray< OdGiExtents3dSpacePoint * > *	intersectionVertices ()
OdArray< OdGiEdgeForIntersectTest * > *	intersectionEdges ()
bool	collideTriangles (OdUInt32 idObjA, OdUInt32 trIdA, OdUInt32 idObjB, OdUInt32 trIdB, OdUInt32 idObjTested, const OdGeTol &tol)
OdUInt32	checkPointsPlacement (const OdGeVector3d *pPlaneNormalA, double D_A, const OdGePoint3d *pPointsTriangleB, const OdGeTol &tol)
Protected Member Functions inherited from OdGiIntersectionsCalculator
void	intersectTriangles (OdUInt32 idObjA, OdUInt32 trIdA, OdUInt32 idObjB, OdUInt32 trIdB, OdUInt32 idObjTested, const OdGeTol &tol)

Protected Attributes
OdVector< DetectedCollision, OdMemoryAllocator< DetectedCollision > >	m_vectCollidedContainers
DetectedCollision *	m_vectCollidedContainersAsPtr
OdGePoint3d	m_ptA
OdGePoint3d	m_ptB
OdUInt8	m_options
double	m_dClearance
Protected Attributes inherited from OdGiIntersectionsCalculator
OdGeTol	m_tol
OdVector< bool, OdMemoryAllocator< bool > >	m_vectTestedTriangles
OdUInt32Vector	m_vectTestTriangles_objBoundary
OdUInt32Vector	m_vectToBeTestedObjects
bool	m_bSecondObjectProcessedInTree
OdVector< OdGiIntersectTrianglesVector * >	m_containerTriangles
OdGiExtents3dSpaceTree_Gi	m_spaceTriangTree
OdGiExtents3dSpaceTree	m_spaceVertexTree
OdArray< OdGiExtents3dSpacePoint * > *	m_intersectVertices
OdArray< OdGiEdgeForIntersectTest * > *	m_intersectEdges
OdList< OdGiExtents3dSpaceChainPolyline * >	m_finalIntersectPathes
bool	m_b3dFacesActive

Detailed Description

This class is a detector for collision of triangular representations of entities.

<group OdGi_Classes>

See also

<link gs_collision_detection, Work with Collision Detection>

Definition at line 255 of file GiIntersectionsCalculator.h.

Member Enumeration Documentation

CollisionOption

enum OdGiCollisionDetector::CollisionOption

protected

Enumerator
kOption_IntersectionOnly
kOption_Clearance
kOption_CalcDistance
kOption_CheckAll

Definition at line 397 of file GiIntersectionsCalculator.h.

Constructor & Destructor Documentation

OdGiCollisionDetector()

OdGiCollisionDetector::OdGiCollisionDetector

(

)

Default constructor for the OdGiCollisionDetector class.

~OdGiCollisionDetector()

virtual OdGiCollisionDetector::~OdGiCollisionDetector ( )

inlinevirtual

Destructor for the OdGiCollisionDetector class.

Definition at line 266 of file GiIntersectionsCalculator.h.

Member Function Documentation

checkPointsPlacement()

OdUInt32 OdGiCollisionDetector::checkPointsPlacement ( const OdGeVector3d * pPlaneNormalA, double D_A, const OdGePoint3d * pPointsTriangleB, const OdGeTol & tol )

protected

clearContainersToBeTested()

void OdGiCollisionDetector::clearContainersToBeTested

(

)

Clears all triangle containers that were marked for collision detection calculations.

collideTriangles()

bool OdGiCollisionDetector::collideTriangles ( OdUInt32 idObjA, OdUInt32 trIdA, OdUInt32 idObjB, OdUInt32 trIdB, OdUInt32 idObjTested, const OdGeTol & tol )

protected

computeIntersections()

void OdGiCollisionDetector::computeIntersections ( OdInt32 containerID, OdGeExtents3d & extents )

inlineprotected

Definition at line 273 of file GiIntersectionsCalculator.h.

detectCollisions()

void OdGiCollisionDetector::detectCollisions	(	OdInt32	containerID,
		const OdGeExtents3d &	extents )

Detects collisions between a specified triangle container and all triangle containers that are marked as "container to be tested".

Parameters

containerID	[in] Triangle container.
extents	[in] Not used.

finalIntersectionPathes()

OdList< OdGiExtents3dSpaceChainPolyline * > & OdGiCollisionDetector::finalIntersectionPathes ( )

inlineprotected

Definition at line 276 of file GiIntersectionsCalculator.h.

finalizeCalculations()

virtual void OdGiCollisionDetector::finalizeCalculations ( )

virtual

Finalizes calculations, i.e. resets the triangles tree, removes triangles info and releases all data related to collision detection.

Reimplemented from OdGiIntersectionsCalculator.

getCalcDistance()

bool OdGiCollisionDetector::getCalcDistance ( ) const

inline

Checks whether collision detection calculates collision distance.

Returns

true if collision detection calculates collision distance, false otherwise.

Definition at line 360 of file GiIntersectionsCalculator.h.

getCheckAll()

bool OdGiCollisionDetector::getCheckAll ( ) const

inline

Checks whether collision detection checks all faces instead of detecting the first collision.

Returns

true if collision detection checks all faces, false otherwise.

Definition at line 373 of file GiIntersectionsCalculator.h.

getClearance()

double OdGiCollisionDetector::getClearance ( ) const

inline

Retrieves a distance for the clearance mode when objects that are "too close" are detected as intersections.

Definition at line 347 of file GiIntersectionsCalculator.h.

getCollisionDistance()

bool OdGiCollisionDetector::getCollisionDistance	(	OdUInt32	collisionIndex,
		double &	result ) const

Retrieves a collision distance at the specified index.

Parameters

collisionIndex	[in] Index of a collision for which to get the distance.
result	[out] Receives collision distance.

Returns

true if collision distance is sucessfully received. This method returns false if index exceeds the size of vector with collisions or if collision at the specified index is not detected.

getCollisions()

void OdGiCollisionDetector::getCollisions

(

OdList< OdInt32 > &

result

)

Gets a list of all detected collisions.

Parameters

result

[out] Recieves results of collision detection.

intersectionEdges()

OdArray< OdGiEdgeForIntersectTest * > * OdGiCollisionDetector::intersectionEdges ( )

inlineprotected

Definition at line 278 of file GiIntersectionsCalculator.h.

intersectionVertices()

OdArray< OdGiExtents3dSpacePoint * > * OdGiCollisionDetector::intersectionVertices ( )

inlineprotected

Definition at line 277 of file GiIntersectionsCalculator.h.

isClearance()

bool OdGiCollisionDetector::isClearance ( ) const

inline

Checks whether clearance mode for detecting collisions is enabled. This method detects collisions between intersectiong, touching and objects that are "too close".

Returns

true if clearance mode is enabled, false otherwise.

Definition at line 342 of file GiIntersectionsCalculator.h.

isIntersectionsOnly()

bool OdGiCollisionDetector::isIntersectionsOnly ( ) const

inline

Checks whether only intersected objects are detected as collisions.

Returns

true if only intersected objects are detected as collisions, false otherwise.

Definition at line 325 of file GiIntersectionsCalculator.h.

notifyObjectPlacedAtNode()

virtual bool OdGiCollisionDetector::notifyObjectPlacedAtNode ( OdGiTriangleForIntersectTest * pTriang, int objectType, OdGiExtents3dSpaceNode_Gi * pNode )

protectedvirtual

Reimplemented from OdGiIntersectionsCalculator.

processPathCalculation()

void OdGiCollisionDetector::processPathCalculation ( OdUInt32 idObjTested )

inlineprotected

Definition at line 274 of file GiIntersectionsCalculator.h.

removeEdgeInfo()

void OdGiCollisionDetector::removeEdgeInfo ( OdInt32 objID )

inlineprotected

Definition at line 275 of file GiIntersectionsCalculator.h.

setCalcDistance()

void OdGiCollisionDetector::setCalcDistance ( bool b )

inline

Specifies whether collision detection should calculate collision distance.

Parameters

b	[in] The flag that indicates that collision detection should calculate collision distance.

Definition at line 353 of file GiIntersectionsCalculator.h.

setCheckAll()

void OdGiCollisionDetector::setCheckAll ( bool b )

inline

Specifies whether collision detection should check all faces instead of detecting the first collision.

Parameters

b	[in] If true, collision detection checks all faces instead of detecting the first collision.

Definition at line 366 of file GiIntersectionsCalculator.h.

setClearance()

void OdGiCollisionDetector::setClearance ( double cl )

inline

Specifies a distance for the clearance mode when objects that are "too close" are detected as intersections.

Parameters

cl	[in] Clearance distance. Object which have less distance than this value are considered collided in the clearance mode.

Definition at line 331 of file GiIntersectionsCalculator.h.

setIntersectionsOnly()

void OdGiCollisionDetector::setIntersectionsOnly ( bool b )

inline

Specifies whether to detect collisions only when collided objects intersect.

Parameters

b	[in] Flag that specifies whether to detect only intersecting objects. If true, touches are not detected.

Definition at line 318 of file GiIntersectionsCalculator.h.

Member Data Documentation

m_dClearance

double OdGiCollisionDetector::m_dClearance

protected

Definition at line 406 of file GiIntersectionsCalculator.h.

m_options

OdUInt8 OdGiCollisionDetector::m_options

protected

Definition at line 404 of file GiIntersectionsCalculator.h.

m_ptA

OdGePoint3d OdGiCollisionDetector::m_ptA

protected

Definition at line 389 of file GiIntersectionsCalculator.h.

m_ptB

OdGePoint3d OdGiCollisionDetector::m_ptB

protected

Definition at line 390 of file GiIntersectionsCalculator.h.

m_vectCollidedContainers

OdVector<DetectedCollision, OdMemoryAllocator<DetectedCollision> > OdGiCollisionDetector::m_vectCollidedContainers

protected

Definition at line 386 of file GiIntersectionsCalculator.h.

m_vectCollidedContainersAsPtr

DetectedCollision* OdGiCollisionDetector::m_vectCollidedContainersAsPtr

protected

Definition at line 388 of file GiIntersectionsCalculator.h.

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The documentation for this class was generated from the following file:

• GiIntersectionsCalculator.h