Panda3D
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This is the base class for all three-component vectors and points. More...
#include "lvecBase4.h"
Public Types | |
enum | { num_components = 4, is_int = 0 } |
typedef const float * | const_iterator |
typedef LSimpleMatrix< float, 1, 4 > | EVector4 |
typedef const float * | iterator |
typedef float | numeric_type |
Public Member Functions | |
LVecBase4f (const LVecBase4f ©) | |
LVecBase4f (const UnalignedLVecBase4f ©) | |
LVecBase4f (float fill_value) | |
LVecBase4f (float x, float y, float z, float w) | |
LVecBase4f (const LVecBase3f ©, float w) | |
LVecBase4f (const LPoint3f &point) | |
Constructs an LVecBase4 from an LPoint3. More... | |
LVecBase4f (const LVector3f &vector) | |
Constructs an LVecBase4 from an LVector3. More... | |
LVecBase4f (const EVector4 &v) | |
size_t | add_hash (size_t hash) const |
Adds the vector into the running hash. More... | |
size_t | add_hash (size_t hash, float threshold) const |
Adds the vector into the running hash. More... | |
void | add_to_cell (int i, float value) |
void | add_w (float value) |
void | add_x (float value) |
void | add_y (float value) |
void | add_z (float value) |
bool | almost_equal (const LVecBase4f &other, float threshold) const |
Returns true if two vectors are memberwise equal within a specified tolerance. More... | |
bool | almost_equal (const LVecBase4f &other) const |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type. More... | |
iterator | begin () |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
const_iterator | begin () const |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
int | compare_to (const LVecBase4f &other) const |
This flavor of compare_to uses a default threshold value based on the numeric type. More... | |
int | compare_to (const LVecBase4f &other, float threshold) const |
Sorts vectors lexicographically, componentwise. More... | |
void | componentwise_mult (const LVecBase4f &other) |
float | dot (const LVecBase4f &other) const |
iterator | end () |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
const_iterator | end () const |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
void | extract_data (float *) |
void | fill (float fill_value) |
Sets each element of the vector to the indicated fill_value. More... | |
LVecBase4f | fmax (const LVecBase4f &other) const |
LVecBase4f | fmin (const LVecBase4f &other) const |
void | generate_hash (ChecksumHashGenerator &hashgen) const |
Adds the vector to the indicated hash generator. More... | |
void | generate_hash (ChecksumHashGenerator &hashgen, float threshold) const |
Adds the vector to the indicated hash generator. More... | |
float | get_cell (int i) const |
const float * | get_data () const |
Returns the address of the first of the four data elements in the vector. More... | |
size_t | get_hash () const |
Returns a suitable hash for phash_map. More... | |
size_t | get_hash (float threshold) const |
Returns a suitable hash for phash_map. More... | |
int | get_num_components () const |
Returns the number of elements in the vector, four. More... | |
float | get_w () const |
float | get_x () const |
float | get_y () const |
float | get_z () const |
bool | is_nan () const |
Returns true if any component of the vector is not-a-number, false otherwise. More... | |
float | length () const |
Returns the length of the vector, by the Pythagorean theorem. More... | |
float | length_squared () const |
Returns the square of the vector's length, cheap and easy. More... | |
bool | normalize () |
Normalizes the vector in place. More... | |
LVecBase4f | normalized () const |
Normalizes the vector and returns the normalized vector as a copy. More... | |
bool | operator!= (const LVecBase4f &other) const |
LVecBase4f | operator* (float scalar) const |
void | operator*= (float scalar) |
LVecBase4f | operator+ (const LVecBase4f &other) const |
void | operator+= (const LVecBase4f &other) |
LVecBase4f | operator- () const |
LVecBase4f | operator- (const LVecBase4f &other) const |
void | operator-= (const LVecBase4f &other) |
LVecBase4f | operator/ (float scalar) const |
void | operator/= (float scalar) |
bool | operator< (const LVecBase4f &other) const |
This performs a lexicographical comparison. More... | |
LVecBase4f & | operator= (const LVecBase4f ©) |
LVecBase4f & | operator= (const UnalignedLVecBase4f ©) |
LVecBase4f & | operator= (float fill_value) |
bool | operator== (const LVecBase4f &other) const |
float | operator[] (int i) const |
float & | operator[] (int i) |
void | output (ostream &out) const |
LVecBase4f | project (const LVecBase4f &onto) const |
Returns a new vector representing the projection of this vector onto another one. More... | |
void | read_datagram (DatagramIterator &source) |
Reads the vector from the Datagram using get_stdfloat(). More... | |
void | read_datagram_fixed (DatagramIterator &source) |
Reads the vector from the Datagram using get_float32() or get_float64(). More... | |
void | set (float x, float y, float z, float w) |
void | set_cell (int i, float value) |
void | set_w (float value) |
void | set_x (float value) |
void | set_y (float value) |
void | set_z (float value) |
void | write_datagram (Datagram &destination) const |
Writes the vector to the Datagram using add_stdfloat(). More... | |
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(). More... | |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static void | init_type () |
static int | size () |
Returns 4: the number of components of a LVecBase4. More... | |
static const LVecBase4f & | unit_w () |
Returns a unit W vector. More... | |
static const LVecBase4f & | unit_x () |
Returns a unit X vector. More... | |
static const LVecBase4f & | unit_y () |
Returns a unit Y vector. More... | |
static const LVecBase4f & | unit_z () |
Returns a unit Z vector. More... | |
static const LVecBase4f & | zero () |
Returns a zero-length vector. More... | |
Public Attributes | |
EVector4 | _v |
This is the base class for all three-component vectors and points.
Definition at line 111 of file lvecBase4.h.
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Constructs an LVecBase4 from an LPoint3.
The w coordinate is set to 1.0.
Definition at line 463 of file lvecBase4.h.
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Constructs an LVecBase4 from an LVector3.
The w coordinate is set to 0.0.
Definition at line 474 of file lvecBase4.h.
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Adds the vector into the running hash.
Definition at line 1026 of file lvecBase4.h.
References integer_hash< Key, Compare >::add_hash().
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Adds the vector into the running hash.
Definition at line 1102 of file lvecBase4.h.
References floating_point_hash< Key >::add_hash().
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Returns true if two vectors are memberwise equal within a specified tolerance.
Definition at line 1339 of file lvecBase4.h.
Referenced by EggVertexPool::check_overall_color(), MultitexReducer::flatten(), EggLoader::make_polyset(), and QtessSurface::tesselate_auto().
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Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
Definition at line 1354 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 767 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 789 of file lvecBase4.h.
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This flavor of compare_to uses a default threshold value based on the numeric type.
Definition at line 988 of file lvecBase4.h.
Referenced by XFileMaterial::apply_to_egg(), EggAttributes::compare_to(), Material::compare_to(), XFileVertex::set_from_egg(), and StandardMunger::StandardMunger().
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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 1068 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 778 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 800 of file lvecBase4.h.
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Sets each element of the vector to the indicated fill_value.
This is particularly useful for initializing to zero.
Definition at line 812 of file lvecBase4.h.
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Adds the vector to the indicated hash generator.
Definition at line 1045 of file lvecBase4.h.
References ChecksumHashGenerator::add_int().
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Adds the vector to the indicated hash generator.
Definition at line 1118 of file lvecBase4.h.
References ChecksumHashGenerator::add_fp().
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Returns the address of the first of the four data elements in the vector.
The remaining elements occupy the next positions consecutively in memory.
Definition at line 746 of file lvecBase4.h.
Referenced by DXGraphicsStateGuardian9::bind_light(), GraphicsStateGuardian::fetch_specified_part(), DXGraphicsStateGuardian9::get_index_type(), Shader::get_language(), and QtessSurface::tesselate_auto().
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Returns a suitable hash for phash_map.
Definition at line 1015 of file lvecBase4.h.
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Returns a suitable hash for phash_map.
Definition at line 1091 of file lvecBase4.h.
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Returns the number of elements in the vector, four.
Definition at line 756 of file lvecBase4.h.
Referenced by Shader::get_language().
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Returns true if any component of the vector is not-a-number, false otherwise.
Definition at line 576 of file lvecBase4.h.
Referenced by PhysicsObject::add_local_torque(), PhysicsObject::add_torque(), PhysicsObject::get_terminal_velocity(), CLerpNodePathInterval::priv_reverse_instant(), PhysicsObject::reset_orientation(), CLerpNodePathInterval::set_end_color(), CLerpNodePathInterval::set_end_color_scale(), CLerpNodePathInterval::set_end_hpr(), CLerpNodePathInterval::set_end_quat(), PfmFile::set_point4(), PhysicsObject::set_rotation(), CLerpNodePathInterval::set_start_color(), CLerpNodePathInterval::set_start_color_scale(), and CLerpNodePathInterval::set_start_quat().
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Returns the length of the vector, by the Pythagorean theorem.
Definition at line 879 of file lvecBase4.h.
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Returns the square of the vector's length, cheap and easy.
Definition at line 862 of file lvecBase4.h.
Referenced by project(), LVecBase4d::project(), and LVecBase4i::project().
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Normalizes the vector in place.
Returns true if the vector was normalized, false if it was a zero-length vector.
Definition at line 896 of file lvecBase4.h.
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Normalizes the vector and returns the normalized vector as a copy.
If the vector was a zero-length vector, a zero length vector will be returned.
Definition at line 917 of file lvecBase4.h.
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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 948 of file lvecBase4.h.
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Returns a new vector representing the projection of this vector onto another one.
The resulting vector will be a scalar multiple of onto.
Definition at line 933 of file lvecBase4.h.
References length_squared().
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Reads the vector from the Datagram using get_stdfloat().
Definition at line 1458 of file lvecBase4.h.
References DatagramIterator::get_int32(), and DatagramIterator::get_stdfloat().
Referenced by TextureStage::make_TextureStage(), SamplerState::read_datagram(), CubicCurveseg::register_with_read_factory(), ColorAttrib::write_datagram(), ScissorEffect::write_datagram(), RenderModeAttrib::write_datagram(), Material::write_datagram(), and ColorBlendAttrib::write_datagram().
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Reads the vector from the Datagram using get_float32() or get_float64().
Definition at line 1410 of file lvecBase4.h.
References DatagramIterator::get_float32(), DatagramIterator::get_float64(), and DatagramIterator::get_int32().
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Returns 4: the number of components of a LVecBase4.
Definition at line 565 of file lvecBase4.h.
Referenced by ObjToEggConverter::convert_file().
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Returns a unit W vector.
Definition at line 533 of file lvecBase4.h.
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Returns a unit X vector.
Definition at line 503 of file lvecBase4.h.
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Returns a unit Y vector.
Definition at line 513 of file lvecBase4.h.
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Returns a unit Z vector.
Definition at line 523 of file lvecBase4.h.
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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 1438 of file lvecBase4.h.
References Datagram::add_int32(), and Datagram::add_stdfloat().
Referenced by CubicCurveseg::register_with_read_factory(), ColorAttrib::write_datagram(), ScissorEffect::write_datagram(), RenderModeAttrib::write_datagram(), Material::write_datagram(), ColorBlendAttrib::write_datagram(), SamplerState::write_datagram(), and TextureStage::write_datagram().
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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 1384 of file lvecBase4.h.
References Datagram::add_float32(), Datagram::add_float64(), and Datagram::add_int32().
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Returns a zero-length vector.
Definition at line 493 of file lvecBase4.h.
Referenced by NurbsBasisVector::append_segment(), CubicCurveseg::bezier_basis(), TinyGraphicsStateGuardian::bind_light(), AssimpLoader::build_graph(), TinyGraphicsStateGuardian::clear(), EggGroup::clear_blend_color(), DaeMaterials::convert_filter_type(), GeomVertexData::copy_from(), Texture::ensure_loader_type(), TinyGraphicsStateGuardian::framebuffer_copy_to_texture(), PfmFile::gaussian_filter_from(), PNMImage::get_average_xel_a(), CullBinManager::get_bin_flash_color(), NurbsCurve::get_cv(), GeomVertexReader::get_data4f(), PhysxActor::get_global_quat(), NurbsSurfaceEvaluator::get_vertex(), NurbsCurveEvaluator::get_vertex(), LineSegs::get_vertex_color(), NurbsCurveResult::NurbsCurveResult(), NurbsCurve::rebuild_curveseg(), ColorAttrib::write_datagram(), and ScissorEffect::write_datagram().