Voxel_CollisionDetection Class Reference

Detects collisions between shapes.

#include <Voxel_CollisionDetection.hxx>

Public Member Functions
DEFINE_STANDARD_ALLOC	Voxel_CollisionDetection ()
	An empty constructor.
	Voxel_CollisionDetection (const Standard_Real deflection, const Standard_Integer nbx, const Standard_Integer nby, const Standard_Integer nbz)
	A constructor. It defines deflection of triangulation for the shapes. As lower the deflection is, as proper the triangulation is generated. Also, it defines number of splits along X, Y and Z axes for generation of voxels. As greater the numbers are, as greater number of voxels is used for detection of collision.
Standard_Integer	AddShape (const TopoDS_Shape &shape)
	Adds a shape. Returns an index of the shape.
Standard_Boolean	ReplaceShape (const Standard_Integer ishape, const TopoDS_Shape &shape)
	Replaces a shape by another one. <ishape> is an index of the shape. This method is useful for moving shape, for example.
void	SetDeflection (const Standard_Real deflection)
	Defines the deflection of triangulation of shapes.
void	SetNbVoxels (const Standard_Integer nbx, const Standard_Integer nby, const Standard_Integer nbz)
	Defines the number of voxels along X, Y and Z axes.
void	SetBoundaryBox (const Bnd_Box &box)
	Defines a user-defined boundary box for generation of voxels. If this method is not called, the algorithm calculates the boundary box itself.
void	SetUsageOfVolume (const Standard_Boolean usage)
	Defines usage of volume of shapes in collision detection algorithm. Beware, usage of volume a little bit decreases the speed of algorithm.
void	KeepCollisions (const Standard_Boolean keep)
	Doesn't clean the collision points on new call to the method Compute(). It allows to see the collisions for a moving shape.
Standard_Boolean	Voxelize (const Standard_Integer ishape=-1)
	Prepares data for computation of collisions. It checks the inner parameters (number of voxels along X, Y and Z axes) and voxelizes the shapes. If the shape is not changed since the last call to this method, this method may be not called for this shape. <ishape> - is the index of the shape for processing by this method. If it is equal to -1, all shapes will be processed.
Standard_Boolean	Compute ()
	Computes the collisions. This method may be called many times if, for example, the shapes are being moved.
Standard_Boolean	HasCollisions () const
	Returns true if a collision is detected.
const Voxel_BoolDS &	GetCollisions () const
	Returns the collided voxels.
void	Destroy ()
	A destructor.
	~Voxel_CollisionDetection ()

---

Constructor & Destructor Documentation

DEFINE_STANDARD_ALLOC Voxel_CollisionDetection::Voxel_CollisionDetection

(

)

Voxel_CollisionDetection::Voxel_CollisionDetection	(	const Standard_Real	deflection,
		const Standard_Integer	nbx,
		const Standard_Integer	nby,
		const Standard_Integer	nbz
	)

Voxel_CollisionDetection::~Voxel_CollisionDetection

(

)

[inline]

---

Member Function Documentation

Standard_Integer Voxel_CollisionDetection::AddShape

(

const TopoDS_Shape &

shape

)

Standard_Boolean Voxel_CollisionDetection::Compute

(

)

void Voxel_CollisionDetection::Destroy

(

)

const Voxel_BoolDS& Voxel_CollisionDetection::GetCollisions

(

)

const

Standard_Boolean Voxel_CollisionDetection::HasCollisions

(

)

const

void Voxel_CollisionDetection::KeepCollisions

(

const Standard_Boolean

keep

)

Standard_Boolean Voxel_CollisionDetection::ReplaceShape	(	const Standard_Integer	ishape,
		const TopoDS_Shape &	shape
	)

void Voxel_CollisionDetection::SetBoundaryBox

(

const Bnd_Box &

box

)

void Voxel_CollisionDetection::SetDeflection

(

const Standard_Real

deflection

)

void Voxel_CollisionDetection::SetNbVoxels	(	const Standard_Integer	nbx,
		const Standard_Integer	nby,
		const Standard_Integer	nbz
	)

void Voxel_CollisionDetection::SetUsageOfVolume

(

const Standard_Boolean

usage

)

Standard_Boolean Voxel_CollisionDetection::Voxelize

(

const Standard_Integer

ishape = -1

)

---

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

• Voxel_CollisionDetection.hxx