Panda3D
|
This is the base class for all three-component vectors and points. More...
#include "lvecBase3.h"
Public Types | |
typedef const float * | const_iterator |
typedef const float * | iterator |
Public Member Functions | |
LVecBase3f (const LVecBase3f ©) | |
LVecBase3f (const EVector3 &v) | |
LVecBase3f (float fill_value) | |
LVecBase3f (float x, float y, float z) | |
size_t | add_hash (size_t hash) const |
Adds the vector into the running hash. | |
size_t | add_hash (size_t hash, float threshold) const |
Adds the vector into the running hash. | |
void | add_to_cell (int i, float value) |
void | add_x (float value) |
void | add_y (float value) |
void | add_z (float value) |
bool | almost_equal (const LVecBase3f &other, float threshold) const |
Returns true if two vectors are memberwise equal within a specified tolerance. | |
bool | almost_equal (const LVecBase3f &other) const |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type. | |
iterator | begin () |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. | |
const_iterator | begin () const |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. | |
int | compare_to (const LVecBase3f &other) const |
This flavor of compare_to uses a default threshold value based on the numeric type. | |
int | compare_to (const LVecBase3f &other, float threshold) const |
Sorts vectors lexicographically, componentwise. | |
LVecBase3f | cross (const LVecBase3f &other) const |
void | cross_into (const LVecBase3f &other) |
float | dot (const LVecBase3f &other) const |
iterator | end () |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. | |
const_iterator | end () const |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. | |
void | fill (float fill_value) |
Sets each element of the vector to the indicated fill_value. | |
LVecBase3f | fmax (const LVecBase3f &other) |
LVecBase3f | fmin (const LVecBase3f &other) |
void | generate_hash (ChecksumHashGenerator &hashgen) const |
Adds the vector to the indicated hash generator. | |
void | generate_hash (ChecksumHashGenerator &hashgen, float threshold) const |
Adds the vector to the indicated hash generator. | |
float | get_cell (int i) const |
const float * | get_data () const |
Returns the address of the first of the three data elements in the vector. | |
size_t | get_hash () const |
Returns a suitable hash for phash_map. | |
size_t | get_hash (float threshold) const |
Returns a suitable hash for phash_map. | |
int | get_num_components () const |
Returns the number of elements in the vector, three. | |
LVecBase3f | get_standardized_hpr () const |
Try to un-spin the hpr to a standard form. | |
float | get_x () const |
LVecBase2f | get_xy () const |
Returns a 2-component vector that shares just the first two components of this vector. | |
LVecBase2f | get_xz () const |
Returns a 2-component vector that shares just the first and last components of this vector. | |
float | get_y () const |
LVecBase2f | get_yz () const |
Returns a 2-component vector that shares just the last two components of this vector. | |
float | get_z () const |
bool | is_nan () const |
Returns true if any component of the vector is not-a-number, false otherwise. | |
float | length () const |
Returns the length of the vector, by the Pythagorean theorem. | |
float | length_squared () const |
Returns the square of the vector's length, cheap and easy. | |
bool | normalize () |
Normalizes the vector in place. | |
bool | operator!= (const LVecBase3f &other) const |
LVecBase3f | operator* (float scalar) const |
void | operator*= (float scalar) |
LVecBase3f | operator+ (const LVecBase3f &other) const |
void | operator+= (const LVecBase3f &other) |
LVecBase3f | operator- () const |
LVecBase3f | operator- (const LVecBase3f &other) const |
void | operator-= (const LVecBase3f &other) |
LVecBase3f | operator/ (float scalar) const |
void | operator/= (float scalar) |
bool | operator< (const LVecBase3f &other) const |
This performs a lexicographical comparison. | |
LVecBase3f & | operator= (float fill_value) |
LVecBase3f & | operator= (const LVecBase3f ©) |
bool | operator== (const LVecBase3f &other) const |
float | operator[] (int i) const |
float & | operator[] (int i) |
void | output (ostream &out) const |
LVecBase3f | project (const LVecBase3f &onto) const |
Returns a new vector representing the projection of this vector onto another one. | |
void | read_datagram (DatagramIterator &source) |
Reads the vector from the Datagram using get_stdfloat(). | |
void | read_datagram_fixed (DatagramIterator &source) |
Reads the vector from the Datagram using get_float32() or get_float64(). | |
void | set (float x, float y, float z) |
void | set_cell (int i, float value) |
void | set_x (float value) |
void | set_y (float value) |
void | set_z (float value) |
typedef | UNALIGNED_LINMATH_MATRIX (float, 1, 3) EVector3 |
void | write_datagram (Datagram &destination) const |
Writes the vector to the Datagram using add_stdfloat(). | |
void | write_datagram_fixed (Datagram &destination) const |
Writes the vector to the Datagram using add_float32() or add_float64(), depending on the type of floats in the vector, regardless of the setting of Datagram::set_stdfloat_double(). | |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static void | init_type () |
static int | size () |
Returns 3: the number of components of a LVecBase3. | |
static const LVecBase3f & | unit_x () |
Returns a unit X vector. | |
static const LVecBase3f & | unit_y () |
Returns a unit Y vector. | |
static const LVecBase3f & | unit_z () |
Returns a unit Z vector. | |
static const LVecBase3f & | zero () |
Returns a zero-length vector. | |
Public Attributes | |
EVector3 | _v |
This is the base class for all three-component vectors and points.
Definition at line 98 of file lvecBase3.h.
size_t LVecBase3f::add_hash | ( | size_t | hash | ) | const [inline] |
Adds the vector into the running hash.
Definition at line 935 of file lvecBase3.h.
size_t LVecBase3f::add_hash | ( | size_t | hash, |
float | threshold | ||
) | const [inline] |
Adds the vector into the running hash.
Definition at line 946 of file lvecBase3.h.
bool LVecBase3f::almost_equal | ( | const LVecBase3f & | other, |
float | threshold | ||
) | const [inline] |
Returns true if two vectors are memberwise equal within a specified tolerance.
Definition at line 1130 of file lvecBase3.h.
Referenced by NurbsCurveResult::adaptive_sample(), ParametricCurve::convert_to_hermite(), ColorScaleAttrib::fillin(), ACMatrixSwitchType::output_value(), FltToEggLevelState::set_transform(), BulletSoftBodyNode::transform_changed(), BulletRigidBodyNode::transform_changed(), and BulletGhostNode::transform_changed().
bool LVecBase3f::almost_equal | ( | const LVecBase3f & | other | ) | const [inline] |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
Definition at line 1144 of file lvecBase3.h.
LVecBase3f::iterator LVecBase3f::begin | ( | ) | [inline] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 614 of file lvecBase3.h.
LVecBase3f::const_iterator LVecBase3f::begin | ( | ) | const [inline] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 636 of file lvecBase3.h.
int LVecBase3f::compare_to | ( | const LVecBase3f & | other | ) | const [inline] |
This flavor of compare_to uses a default threshold value based on the numeric type.
Definition at line 878 of file lvecBase3.h.
Referenced by TransformState::compare_to(), and BillboardEffect::compare_to_impl().
int LVecBase3f::compare_to | ( | const LVecBase3f & | other, |
float | threshold | ||
) | const [inline] |
Sorts vectors lexicographically, componentwise.
Returns a number less than 0 if this vector sorts before the other one, greater than zero if it sorts after, 0 if they are equivalent (within the indicated tolerance).
Definition at line 893 of file lvecBase3.h.
LVecBase3f::iterator LVecBase3f::end | ( | ) | [inline] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 625 of file lvecBase3.h.
LVecBase3f::const_iterator LVecBase3f::end | ( | ) | const [inline] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 647 of file lvecBase3.h.
void LVecBase3f::fill | ( | float | fill_value | ) | [inline] |
Sets each element of the vector to the indicated fill_value.
This is particularly useful for initializing to zero.
Definition at line 659 of file lvecBase3.h.
void LVecBase3f::generate_hash | ( | ChecksumHashGenerator & | hashgen | ) | const [inline] |
Adds the vector to the indicated hash generator.
Definition at line 1167 of file lvecBase3.h.
void LVecBase3f::generate_hash | ( | ChecksumHashGenerator & | hashgen, |
float | threshold | ||
) | const [inline] |
Adds the vector to the indicated hash generator.
Definition at line 1178 of file lvecBase3.h.
const float * LVecBase3f::get_data | ( | ) | const [inline] |
Returns the address of the first of the three data elements in the vector.
The remaining elements occupy the next positions consecutively in memory.
Definition at line 593 of file lvecBase3.h.
Referenced by DXGraphicsStateGuardian9::bind_light(), and DXGraphicsStateGuardian8::bind_light().
size_t LVecBase3f::get_hash | ( | ) | const [inline] |
Returns a suitable hash for phash_map.
Definition at line 913 of file lvecBase3.h.
size_t LVecBase3f::get_hash | ( | float | threshold | ) | const [inline] |
Returns a suitable hash for phash_map.
Definition at line 924 of file lvecBase3.h.
int LVecBase3f::get_num_components | ( | ) | const [inline] |
Returns the number of elements in the vector, three.
Definition at line 603 of file lvecBase3.h.
LVecBase3f LVecBase3f::get_standardized_hpr | ( | ) | const [inline] |
Try to un-spin the hpr to a standard form.
Like all standards, someone decides between many arbitrary possible standards. This function assumes that 0 and 360 are the same, as is 720 and -360. Also 180 and -180 are the same. Another example is -90 and 270. Each element will be in the range -180.0 to 179.99999. The original usage of this function is for human readable output.
It doesn't work so well for asserting that foo_hpr is roughly equal to bar_hpr. Try using LQuaternionf::is_same_direction() for that. See Also: get_standardized_rotation, LQuaternion::is_same_direction
Definition at line 864 of file lvecBase3.h.
LVecBase2f LVecBase3f::get_xy | ( | ) | const [inline] |
Returns a 2-component vector that shares just the first two components of this vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 518 of file lvecBase3.h.
LVecBase2f LVecBase3f::get_xz | ( | ) | const [inline] |
Returns a 2-component vector that shares just the first and last components of this vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 529 of file lvecBase3.h.
LVecBase2f LVecBase3f::get_yz | ( | ) | const [inline] |
Returns a 2-component vector that shares just the last two components of this vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 540 of file lvecBase3.h.
bool LVecBase3f::is_nan | ( | ) | const [inline] |
Returns true if any component of the vector is not-a-number, false otherwise.
Definition at line 424 of file lvecBase3.h.
Referenced by PhysxActor::add_force(), PhysxActor::add_force_at_local_pos(), PhysxActor::add_force_at_pos(), PhysicsObject::add_impact(), PhysicsObject::add_impulse(), PhysxActor::add_local_force(), PhysxActor::add_local_force_at_local_pos(), PhysxActor::add_local_force_at_pos(), PhysicsObject::add_local_impact(), PhysicsObject::add_local_impulse(), PhysxActor::add_local_torque(), PhysxActor::add_torque(), BoundingSphere::around_points(), BoundingBox::around_points(), PhysxCloth::attach_vertex_to_global_pos(), PhysxCloth::attach_vertex_to_shape(), BoundingBox::BoundingBox(), BoundingSphere::BoundingSphere(), PhysxBounds3::bounds_of_obb(), PhysxUtilLib::box_box_intersect(), PhysxSegment::compute_direction(), PhysxCapsule::compute_direction(), PhysxSegment::compute_point(), PhysxCapsule::compute_point(), PhysxBounds3::contain(), PhysxSphere::contains(), UnionBoundingVolume::contains_lineseg(), IntersectionBoundingVolume::contains_lineseg(), BoundingSphere::contains_lineseg(), BoundingBox::contains_lineseg(), UnionBoundingVolume::contains_point(), IntersectionBoundingVolume::contains_point(), BoundingSphere::contains_point(), BoundingBox::contains_point(), BoundingSphere::extend_by_point(), BoundingBox::extend_by_point(), PhysxActor::get_local_point_velocity(), PhysxActor::get_point_velocity(), PhysxBounds3::include(), PhysxActor::move_global_pos(), PhysxUtilLib::point_obb_sqr_dist(), PhysxUtilLib::ray_aabb_intersect(), PhysxUtilLib::ray_capsule_intersect(), PhysxUtilLib::ray_obb_intersect(), PhysxUtilLib::ray_sphere_intersect(), PhysxUtilLib::ray_tri_intersect(), PhysicsObject::reset_position(), PhysxUtilLib::segment_aabb_intersect(), PhysxUtilLib::segment_box_intersect(), PhysxUtilLib::segment_obb_intersect(), PhysxBounds3::set(), BulletHingeConstraint::set_axis(), PhysxSphere::set_center(), PhysxBox::set_center(), PhysxBounds3::set_center_extents(), BulletWheel::set_chassis_connection_point_cs(), CollisionEntry::set_contact_normal(), CollisionEntry::set_contact_pos(), PhysxBoxShapeDesc::set_dimensions(), PhysxBoxForceFieldShapeDesc::set_dimensions(), PhysxRay::set_direction(), CLerpNodePathInterval::set_end_hpr(), CLerpNodePathInterval::set_end_pos(), CLerpNodePathInterval::set_end_quat(), CLerpNodePathInterval::set_end_scale(), CLerpNodePathInterval::set_end_shear(), PhysxBox::set_extents(), PhysxCloth::set_external_acceleration(), Lens::set_frustum_from_corners(), PhysxActor::set_global_pos(), PhysxController::set_global_speed(), PhysxSceneDesc::set_gravity(), PhysxScene::set_gravity(), CollisionEntry::set_interior_point(), PhysxController::set_local_speed(), PhysxBounds3::set_max(), PhysxBounds3::set_min(), PhysxRay::set_origin(), PhysxSegment::set_origin_direction(), PhysxCapsule::set_origin_direction(), PhysxSegment::set_p0(), PhysxCapsule::set_p0(), PhysxSegment::set_p1(), PhysxCapsule::set_p1(), PhysxPlaneShapeDesc::set_plane(), PfmFile::set_point(), PhysicsObject::set_position(), CLerpNodePathInterval::set_start_hpr(), CLerpNodePathInterval::set_start_pos(), CLerpNodePathInterval::set_start_scale(), CLerpNodePathInterval::set_start_shear(), CollisionEntry::set_surface_normal(), CollisionEntry::set_surface_point(), PhysxSphericalJointDesc::set_swing_axis(), PhysicsObject::set_velocity(), Lens::set_view_hpr(), Lens::set_view_vector(), BulletWheel::set_wheel_axle_cs(), BulletWheel::set_wheel_direction_cs(), PhysxCloth::set_wind_acceleration(), PhysxUtilLib::sweep_box_box(), PhysxUtilLib::sweep_box_capsule(), PhysxUtilLib::sweep_box_sphere(), PhysxUtilLib::sweep_capsule_capsule(), PhysxUtilLib::sweep_sphere_capsule(), PhysxUtilLib::swept_spheres_intersect(), PhysxBounds3::transform(), and PhysxUtilLib::tri_box_intersect().
float LVecBase3f::length | ( | ) | const [inline] |
Returns the length of the vector, by the Pythagorean theorem.
Definition at line 690 of file lvecBase3.h.
Referenced by AIBehaviors::accumulate_force(), PhysicsObject::add_impact(), PhysicsCollisionHandler::apply_friction(), PhysicsCollisionHandler::apply_net_shove(), Arrival::arrival_activate(), AIBehaviors::calculate_prioritized(), Arrival::do_arrival(), Evade::do_evade(), Flee::do_flee(), AIBehaviors::do_flock(), ObstacleAvoidance::do_obstacle_avoidance(), PSphereLens::do_project(), OSphereLens::do_project(), FisheyeLens::do_project(), Evade::evade_activate(), CollisionTube::fill_viz_geom(), Flee::flee_activate(), AIBehaviors::is_conflict(), ObstacleAvoidance::obstacle_detection(), MeshDrawer::stream(), AICharacter::update(), CMotionTrail::update_motion_trail(), CollisionPolygon::verify_points(), PGFrameStyle::xform(), and LODNode::xform().
float LVecBase3f::length_squared | ( | ) | const [inline] |
Returns the square of the vector's length, cheap and easy.
Definition at line 706 of file lvecBase3.h.
Referenced by CollisionHandlerHighestEvent::add_entry(), ObstacleAvoidance::obstacle_detection(), and Lens::set_frustum_from_corners().
bool LVecBase3f::normalize | ( | ) | [inline] |
Normalizes the vector in place.
Returns true if the vector was normalized, false if it was a zero-length vector.
Definition at line 723 of file lvecBase3.h.
Referenced by AIBehaviors::accumulate_force(), PhysicsObject::add_impact(), Fog::adjust_to_camera(), TinyGraphicsStateGuardian::bind_light(), AIBehaviors::calculate_prioritized(), ParametricCurve::convert_to_hermite(), SpeedTreeNode::cull_callback(), Arrival::do_arrival(), NodePath::do_billboard_axis(), NodePath::do_billboard_point_eye(), NodePath::do_billboard_point_world(), Evade::do_evade(), AIBehaviors::do_flock(), ObstacleAvoidance::do_obstacle_avoidance(), Pursue::do_pursue(), Wander::do_wander(), MeshDrawer::explosion(), GraphicsStateGuardian::fetch_specified_part(), GraphicsStateGuardian::fetch_specified_value(), CollisionPlane::fill_viz_geom(), Flee::flee_activate(), BaseParticleEmitter::generate(), Texture::generate_normalization_cube_map(), GeoMipTerrain::get_normal(), CollisionHandlerPusher::handle_entries(), CollisionHandlerFluidPusher::handle_entries(), AIBehaviors::is_conflict(), GeoMipTerrain::make_slope_image(), ObstacleAvoidance::obstacle_detection(), AICharacter::update(), and CollisionSolid::xform().
bool LVecBase3f::operator< | ( | const LVecBase3f & | other | ) | const [inline] |
This performs a lexicographical comparison.
It's of questionable mathematical meaning, but sometimes has a practical purpose for sorting unique vectors, especially in an STL container. Also see compare_to().
Definition at line 791 of file lvecBase3.h.
LVecBase3f LVecBase3f::project | ( | const LVecBase3f & | onto | ) | const [inline] |
Returns a new vector representing the projection of this vector onto another one.
The resulting vector will be a scalar multiple of onto.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 777 of file lvecBase3.h.
void LVecBase3f::read_datagram | ( | DatagramIterator & | source | ) | [inline] |
Reads the vector from the Datagram using get_stdfloat().
Definition at line 1249 of file lvecBase3.h.
Referenced by STTransform::fillin(), TransformState::fillin(), PortalNode::fillin(), PolylightNode::fillin(), OccluderNode::fillin(), Fog::fillin(), BillboardEffect::fillin(), CollisionTube::fillin(), CollisionSphere::fillin(), CollisionSolid::fillin(), CollisionSegment::fillin(), CollisionRay::fillin(), CollisionFloorMesh::fillin(), CollisionBox::fillin(), and AnimChannelMatrixFixed::fillin().
void LVecBase3f::read_datagram_fixed | ( | DatagramIterator & | source | ) | [inline] |
Reads the vector from the Datagram using get_float32() or get_float64().
Definition at line 1216 of file lvecBase3.h.
int LVecBase3f::size | ( | ) | [inline, static] |
Returns 3: the number of components of a LVecBase3.
Definition at line 413 of file lvecBase3.h.
Referenced by CollisionPolygon::fillin(), and CollisionPolygon::xform().
const LVecBase3f & LVecBase3f::unit_x | ( | ) | [inline, static] |
Returns a unit X vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 352 of file lvecBase3.h.
const LVecBase3f & LVecBase3f::unit_y | ( | ) | [inline, static] |
Returns a unit Y vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 362 of file lvecBase3.h.
const LVecBase3f & LVecBase3f::unit_z | ( | ) | [inline, static] |
Returns a unit Z vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 372 of file lvecBase3.h.
void LVecBase3f::write_datagram | ( | Datagram & | destination | ) | const [inline] |
Writes the vector to the Datagram using add_stdfloat().
This is appropriate when you want to write the vector using the standard width setting, especially when you are writing a bam file.
Definition at line 1237 of file lvecBase3.h.
Referenced by STTransform::write_datagram(), TransformState::write_datagram(), PolylightNode::write_datagram(), Fog::write_datagram(), BillboardEffect::write_datagram(), CollisionTube::write_datagram(), CollisionSphere::write_datagram(), CollisionSolid::write_datagram(), CollisionSegment::write_datagram(), CollisionRay::write_datagram(), CollisionBox::write_datagram(), and AnimChannelMatrixFixed::write_datagram().
void LVecBase3f::write_datagram_fixed | ( | Datagram & | destination | ) | const [inline] |
Writes the vector to the Datagram using add_float32() or add_float64(), depending on the type of floats in the vector, regardless of the setting of Datagram::set_stdfloat_double().
This is appropriate when you want to write a fixed-width value to the datagram, especially when you are not writing a bam file.
Definition at line 1197 of file lvecBase3.h.
const LVecBase3f & LVecBase3f::zero | ( | ) | [inline, static] |
Returns a zero-length vector.
Reimplemented in LPoint3f, and LVector3f.
Definition at line 342 of file lvecBase3.h.
Referenced by XFileMaterial::apply_to_egg(), PfmFile::calc_min_max(), PStatMonitor::get_collector_color(), NurbsCurveInterface::get_cv_point(), GeomVertexReader::get_data3f(), CurveFitter::get_sample_hpr(), CurveFitter::get_sample_tangent(), CurveFitter::get_sample_xyz(), AnimChannelMatrixFixed::get_shear(), NodePath::get_tex_hpr(), NodePath::get_tex_pos(), AnimChannelMatrixFixed::get_value_no_scale_shear(), and AnimChannelMatrixFixed::make_from_bam().