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BoundingSphere Class Reference

This defines a bounding sphere, consisting of a center and a radius. More...

#include "boundingSphere.h"

Inheritance diagram for BoundingSphere:
FiniteBoundingVolume GeometricBoundingVolume BoundingVolume TypedReferenceCount TypedObject ReferenceCount MemoryBase MemoryBase

Public Member Functions

 BoundingSphere ()
 Constructs an empty sphere. More...
 
 BoundingSphere (const LPoint3 &center, PN_stdfloat radius)
 Constructs a specific sphere. More...
 
virtual const BoundingSphereas_bounding_sphere () const
 Virtual downcast method. More...
 
virtual TypeHandle force_init_type ()
 
virtual LPoint3 get_approx_center () const
 
LPoint3 get_center () const
 
virtual LPoint3 get_max () const
 
virtual LPoint3 get_min () const
 
PN_stdfloat get_radius () const
 
virtual TypeHandle get_type () const
 
virtual PN_stdfloat get_volume () const
 
virtual BoundingVolumemake_copy () const
 
virtual void output (std::ostream &out) const
 
void set_center (const LPoint3 &center)
 
void set_radius (PN_stdfloat radius)
 
virtual void xform (const LMatrix4 &mat)
 
- Public Member Functions inherited from FiniteBoundingVolume
virtual const FiniteBoundingVolumeas_finite_bounding_volume () const
 Virtual downcast method. More...
 
- Public Member Functions inherited from GeometricBoundingVolume
bool around (const GeometricBoundingVolume **first, const GeometricBoundingVolume **last)
 Resets the volume to enclose only the volumes indicated. More...
 
bool around (const LPoint3 *first, const LPoint3 *last)
 Resets the volume to enclose only the points indicated. More...
 
virtual GeometricBoundingVolumeas_geometric_bounding_volume () final
 Virtual downcast method. More...
 
virtual const GeometricBoundingVolumeas_geometric_bounding_volume () const final
 Virtual downcast method. More...
 
int contains (const GeometricBoundingVolume *vol) const
 Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated volume. More...
 
int contains (const LPoint3 &point) const
 Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated point. More...
 
int contains (const LPoint3 &a, const LPoint3 &b) const
 Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated line segment. More...
 
bool extend_by (const GeometricBoundingVolume *vol)
 Increases the size of the volume to include the given volume. More...
 
bool extend_by (const LPoint3 &point)
 Increases the size of the volume to include the given point. More...
 
- Public Member Functions inherited from BoundingVolume
bool around (const BoundingVolume **first, const BoundingVolume **last)
 Resets the volume to enclose only the volumes indicated. More...
 
virtual const BoundingBoxas_bounding_box () const
 Virtual downcast method. More...
 
virtual const BoundingHexahedronas_bounding_hexahedron () const
 Virtual downcast method. More...
 
virtual const BoundingLineas_bounding_line () const
 Virtual downcast method. More...
 
virtual const BoundingPlaneas_bounding_plane () const
 Virtual downcast method. More...
 
int contains (const BoundingVolume *vol) const
 Returns the appropriate set of IntersectionFlags to indicate the amount of intersection with the indicated volume. More...
 
bool extend_by (const BoundingVolume *vol)
 Increases the size of the volume to include the given volume. More...
 
bool is_empty () const
 Any kind of volume might be empty. More...
 
bool is_infinite () const
 The other side of the empty coin is an infinite volume. More...
 
void set_infinite ()
 Marks the volume as infinite, even if it is normally finite. More...
 
virtual void write (std::ostream &out, int indent_level=0) const
 
- Public Member Functions inherited from TypedReferenceCount
 TypedReferenceCount (const TypedReferenceCount &copy)
 
void operator= (const TypedReferenceCount &copy)
 
- Public Member Functions inherited from TypedObject
 TypedObject (const TypedObject &copy)=default
 
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
const TypedObjectas_typed_object () const
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
int get_best_parent_from_Set (const std::set< int > &) const
 
int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...
 
bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly. More...
 
bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type. More...
 
TypedObjectoperator= (const TypedObject &copy)=default
 
- Public Member Functions inherited from ReferenceCount
int get_ref_count () const
 
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object. More...
 
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...
 
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...
 
void ref () const
 Explicitly increments the reference count. More...
 
bool ref_if_nonzero () const
 Atomically increases the reference count of this object if it is not zero. More...
 
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus. More...
 
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...
 
virtual bool unref () const
 Explicitly decrements the reference count. More...
 
WeakReferenceListweak_ref ()
 Adds the indicated PointerToVoid as a weak reference to this object. More...
 
void weak_unref ()
 Removes the indicated PointerToVoid as a weak reference to this object. More...
 

Static Public Member Functions

static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from FiniteBoundingVolume
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from GeometricBoundingVolume
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from BoundingVolume
static TypeHandle get_class_type ()
 
static void init_type ()
 
static BoundsType string_bounds_type (const std::string &str)
 Returns the BoundsType corresponding to the indicated string. More...
 
- Static Public Member Functions inherited from TypedReferenceCount
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from TypedObject
static TypeHandle get_class_type ()
 
static void init_type ()
 This function is declared non-inline to work around a compiler bug in g++ 2.96. More...
 
- Static Public Member Functions inherited from ReferenceCount
static TypeHandle get_class_type ()
 
static void init_type ()
 

Public Attributes

 get_center
 
 get_radius
 
 set_center
 Sets the center point of the sphere. More...
 
 set_radius
 Sets the radius of the sphere. More...
 
- Public Attributes inherited from FiniteBoundingVolume
 get_max
 
 get_min
 
 get_volume
 
- Public Attributes inherited from TypedObject
 get_type
 
- Public Attributes inherited from ReferenceCount
 get_ref_count
 Returns the current reference count. More...
 

Friends

class BoundingHexahedron
 

Additional Inherited Members

- Public Types inherited from BoundingVolume
enum  BoundsType {
  BT_default, BT_best, BT_sphere, BT_box,
  BT_fastest
}
 
enum  IntersectionFlags {
  IF_no_intersection = 0, IF_possible = 0x01, IF_some = 0x02, IF_all = 0x04,
  IF_dont_understand = 0x08
}
 

Detailed Description

This defines a bounding sphere, consisting of a center and a radius.

It is always a sphere, and never an ellipsoid or other quadric.

Definition at line 25 of file boundingSphere.h.

Constructor & Destructor Documentation

◆ BoundingSphere() [1/2]

BoundingSphere::BoundingSphere ( )
inline

Constructs an empty sphere.

Definition at line 18 of file boundingSphere.I.

◆ BoundingSphere() [2/2]

BoundingSphere::BoundingSphere ( const LPoint3 &  center,
PN_stdfloat  radius 
)
inlineexplicit

Constructs a specific sphere.

Definition at line 25 of file boundingSphere.I.

Member Function Documentation

◆ as_bounding_sphere()

const BoundingSphere * BoundingSphere::as_bounding_sphere ( ) const
virtual

Virtual downcast method.

Returns this object as a pointer of the indicated type, if it is in fact that type. Returns NULL if it is not that type.

Reimplemented from BoundingVolume.

Definition at line 137 of file boundingSphere.cxx.

Member Data Documentation

◆ set_center

void BoundingSphere::set_center
inline

Sets the center point of the sphere.

Definition at line 50 of file boundingSphere.h.

◆ set_radius

void BoundingSphere::set_radius
inline

Sets the radius of the sphere.

Definition at line 51 of file boundingSphere.h.


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