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AngularIntegrator Class Reference

Pure virtual base class for physical modeling. More...

#include "angularIntegrator.h"

Inheritance diagram for AngularIntegrator:
BaseIntegrator ReferenceCount MemoryBase AngularEulerIntegrator

List of all members.

Public Types

typedef pvector< PT(AngularForce)> AngularForceVector
typedef pvector< PT(LinearForce)> LinearForceVector
typedef pvector< LMatrix4fMatrixVector

Public Member Functions

virtual ~AngularIntegrator ()
 destructor
int get_ref_count () const
 Returns the current reference count.
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object.
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.
void integrate (Physical *physical, AngularForceVector &forces, float dt)
 high-level integration.
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete[] (void *ptr)
void operator delete[] (void *, void *)
void * operator new (size_t size)
void * operator new (size_t size, void *ptr)
void * operator new[] (size_t size)
void * operator new[] (size_t size, void *ptr)
virtual void output (ostream &out) const
 Write a string representation of this instance to <out>.
void ref () const
 Explicitly increments the reference count.
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
virtual bool unref () const
 Explicitly decrements the reference count.
void weak_ref (WeakPointerToVoid *ptv)
 Adds the indicated PointerToVoid as a weak reference to this object.
void weak_unref (WeakPointerToVoid *ptv)
 Removes the indicated PointerToVoid as a weak reference to this object.
virtual void write (ostream &out, unsigned int indent=0) const
 Write a string representation of this instance to <out>.
virtual void write_precomputed_angular_matrices (ostream &out, unsigned int indent=0) const
 Write a string representation of this instance to <out>.
virtual void write_precomputed_linear_matrices (ostream &out, unsigned int indent=0) const
 Write a string representation of this instance to <out>.

Static Public Member Functions

static TypeHandle get_class_type ()
static void init_type ()

Protected Member Functions

 AngularIntegrator ()
 constructor
bool do_test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool do_test_ref_count_nonzero () const
 Returns true if the reference count is nonzero, false otherwise.
const MatrixVector & get_precomputed_angular_matrices () const
const MatrixVector & get_precomputed_linear_matrices () const
void precompute_angular_matrices (Physical *physical, const AngularForceVector &forces)
 effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt.
void precompute_linear_matrices (Physical *physical, const LinearForceVector &forces)
 effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt.

Detailed Description

Pure virtual base class for physical modeling.

Takes physically modelable objects and applies forces to them.

Definition at line 28 of file angularIntegrator.h.


Constructor & Destructor Documentation

AngularIntegrator::~AngularIntegrator ( ) [virtual]

destructor

Definition at line 35 of file angularIntegrator.cxx.

AngularIntegrator::AngularIntegrator ( ) [protected]

constructor

Definition at line 26 of file angularIntegrator.cxx.


Member Function Documentation

bool ReferenceCount::do_test_ref_count_integrity ( ) const [protected, inherited]

Does some easy checks to make sure that the reference count isn't completely bogus.

Returns true if ok, false otherwise.

Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.

Definition at line 29 of file referenceCount.cxx.

Referenced by ReferenceCount::do_test_ref_count_nonzero(), and ReferenceCount::test_ref_count_integrity().

bool ReferenceCount::do_test_ref_count_nonzero ( ) const [protected, inherited]

Returns true if the reference count is nonzero, false otherwise.

Definition at line 56 of file referenceCount.cxx.

References ReferenceCount::do_test_ref_count_integrity().

Referenced by ReferenceCount::test_ref_count_nonzero().

int ReferenceCount::get_ref_count ( ) const [inline, inherited]
WeakReferenceList * ReferenceCount::get_weak_list ( ) const [inline, inherited]

Returns the WeakReferenceList associated with this ReferenceCount object.

If there has never been a WeakReferenceList associated with this object, creates one now.

Definition at line 307 of file referenceCount.I.

Referenced by ReferenceCount::weak_ref().

bool ReferenceCount::has_weak_list ( ) const [inline, inherited]

Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.

In general, this will be true if there was ever a WeakPointerTo created for this object (even if there is not any for it now).

Definition at line 294 of file referenceCount.I.

Referenced by ReferenceCount::weak_unref().

void AngularIntegrator::integrate ( Physical physical,
AngularForceVector &  forces,
float  dt 
)

high-level integration.

API.

Definition at line 44 of file angularIntegrator.cxx.

void ReferenceCount::local_object ( ) [inline, inherited]

This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.

This allows the object to be passed to functions that will increment and decrement the object's reference count temporarily, and it will prevent the object from being deleted (inappropriately), when the reference count returns to zero. It actually achieves this by setting a large positive value in the reference count field.

Definition at line 276 of file referenceCount.I.

Referenced by PGTop::cull_callback(), BoundingSphere::extend_by_hexahedron(), AsyncTaskManager::find_task(), AsyncTaskManager::find_tasks(), and AsyncTaskManager::find_tasks_matching().

void AngularIntegrator::output ( ostream &  out) const [virtual]

Write a string representation of this instance to <out>.

Reimplemented from BaseIntegrator.

Reimplemented in AngularEulerIntegrator.

Definition at line 62 of file angularIntegrator.cxx.

void BaseIntegrator::precompute_angular_matrices ( Physical physical,
const AngularForceVector &  forces 
) [protected, inherited]

effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt.

Definition at line 103 of file baseIntegrator.cxx.

References TransformState::get_mat(), NodePath::get_parent(), and NodePath::get_transform().

void BaseIntegrator::precompute_linear_matrices ( Physical physical,
const LinearForceVector &  forces 
) [protected, inherited]

effectively caches the xform matrices between the physical's node and every force acting on it so that each PhysicsObject in the set held by the Physical doesn't have to wrt.

Definition at line 47 of file baseIntegrator.cxx.

References TransformState::get_mat(), NodePath::get_parent(), and NodePath::get_transform().

void ReferenceCount::ref ( ) const [inline, inherited]

Explicitly increments the reference count.

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

Definition at line 179 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_ref(), TypedWritable::decode_raw_from_bam_stream(), NodeCachedReferenceCount::node_ref(), NodeReferenceCount::node_ref(), BamCacheRecord::set_data(), CullableObject::set_draw_callback(), and ModelRoot::set_reference().

bool ReferenceCount::test_ref_count_integrity ( ) const [inline, inherited]
bool ReferenceCount::test_ref_count_nonzero ( ) const [inline, inherited]

Does some easy checks to make sure that the reference count isn't zero, or completely bogus.

Returns true if ok, false otherwise.

Definition at line 252 of file referenceCount.I.

References ReferenceCount::do_test_ref_count_nonzero().

Referenced by CopyOnWritePointer::test_ref_count_nonzero().

bool ReferenceCount::unref ( ) const [inline, virtual, inherited]

Explicitly decrements the reference count.

Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete().

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is true if the new reference count is nonzero, false if it is zero.

Reimplemented in GeomVertexArrayFormat, GeomVertexFormat, InternalName, RenderAttrib, RenderEffects, RenderState, and TransformState.

Definition at line 214 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_unref(), TypedWritable::decode_raw_from_bam_stream(), RenderEffect::finalize(), NodeCachedReferenceCount::node_unref(), NodeReferenceCount::node_unref(), TransformState::unref(), RenderState::unref(), RenderEffects::unref(), RenderAttrib::unref(), InternalName::unref(), GeomVertexFormat::unref(), and GeomVertexArrayFormat::unref().

void ReferenceCount::weak_ref ( WeakPointerToVoid ptv) [inline, inherited]

Adds the indicated PointerToVoid as a weak reference to this object.

Definition at line 321 of file referenceCount.I.

References WeakReferenceList::add_reference(), and ReferenceCount::get_weak_list().

void ReferenceCount::weak_unref ( WeakPointerToVoid ptv) [inline, inherited]

Removes the indicated PointerToVoid as a weak reference to this object.

It must have previously been added via a call to weak_ref().

Definition at line 334 of file referenceCount.I.

References WeakReferenceList::clear_reference(), and ReferenceCount::has_weak_list().

void AngularIntegrator::write ( ostream &  out,
unsigned int  indent = 0 
) const [virtual]

Write a string representation of this instance to <out>.

Reimplemented from BaseIntegrator.

Reimplemented in AngularEulerIntegrator.

Definition at line 75 of file angularIntegrator.cxx.

void BaseIntegrator::write_precomputed_angular_matrices ( ostream &  out,
unsigned int  indent = 0 
) const [virtual, inherited]

Write a string representation of this instance to <out>.

Definition at line 188 of file baseIntegrator.cxx.

Referenced by BaseIntegrator::write().

void BaseIntegrator::write_precomputed_linear_matrices ( ostream &  out,
unsigned int  indent = 0 
) const [virtual, inherited]

Write a string representation of this instance to <out>.

Definition at line 169 of file baseIntegrator.cxx.

Referenced by BaseIntegrator::write().


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