Panda3D
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This is the base class for all two-component vectors and points. More...
#include "lvecBase2.h"
Public Types | |
enum | { num_components = 2, is_int = 0 } |
typedef const double * | const_iterator |
typedef LSimpleMatrix< double, 1, 2 > | EVector2 |
typedef const double * | iterator |
typedef double | numeric_type |
Public Member Functions | |
LVecBase2d (const LVecBase2d ©) | |
LVecBase2d (double fill_value) | |
LVecBase2d (double x, double y) | |
LVecBase2d (const EVector2 &v) | |
size_t | add_hash (size_t hash) const |
Adds the vector into the running hash. More... | |
size_t | add_hash (size_t hash, double threshold) const |
Adds the vector into the running hash. More... | |
void | add_to_cell (int i, double value) |
void | add_x (double value) |
void | add_y (double value) |
bool | almost_equal (const LVecBase2d &other, double threshold) const |
Returns true if two vectors are memberwise equal within a specified tolerance. More... | |
bool | almost_equal (const LVecBase2d &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 LVecBase2d &other) const |
This flavor of compare_to uses a default threshold value based on the numeric type. More... | |
int | compare_to (const LVecBase2d &other, double threshold) const |
Sorts vectors lexicographically, componentwise. More... | |
void | componentwise_mult (const LVecBase2d &other) |
double | dot (const LVecBase2d &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 | fill (double fill_value) |
Sets each element of the vector to the indicated fill_value. More... | |
LVecBase2d | fmax (const LVecBase2d &other) const |
LVecBase2d | fmin (const LVecBase2d &other) const |
void | generate_hash (ChecksumHashGenerator &hashgen) const |
Adds the vector to the indicated hash generator. More... | |
void | generate_hash (ChecksumHashGenerator &hashgen, double threshold) const |
Adds the vector to the indicated hash generator. More... | |
double | get_cell (int i) const |
const double * | get_data () const |
Returns the address of the first of the two data elements in the vector. More... | |
size_t | get_hash () const |
Returns a suitable hash for phash_map. More... | |
size_t | get_hash (double threshold) const |
Returns a suitable hash for phash_map. More... | |
int | get_num_components () const |
Returns the number of elements in the vector, two. More... | |
double | get_x () const |
double | get_y () const |
bool | is_nan () const |
Returns true if any component of the vector is not-a-number, false otherwise. More... | |
double | length () const |
Returns the length of the vector, by the Pythagorean theorem. More... | |
double | length_squared () const |
Returns the square of the vector's length, cheap and easy. More... | |
bool | normalize () |
Normalizes the vector in place. More... | |
LVecBase2d | normalized () const |
Normalizes the vector and returns the normalized vector as a copy. More... | |
bool | operator!= (const LVecBase2d &other) const |
LVecBase2d | operator* (double scalar) const |
void | operator*= (double scalar) |
LVecBase2d | operator+ (const LVecBase2d &other) const |
void | operator+= (const LVecBase2d &other) |
LVecBase2d | operator- () const |
LVecBase2d | operator- (const LVecBase2d &other) const |
void | operator-= (const LVecBase2d &other) |
LVecBase2d | operator/ (double scalar) const |
void | operator/= (double scalar) |
bool | operator< (const LVecBase2d &other) const |
This performs a lexicographical comparison. More... | |
LVecBase2d & | operator= (const LVecBase2d ©) |
LVecBase2d & | operator= (double fill_value) |
bool | operator== (const LVecBase2d &other) const |
double | operator[] (int i) const |
double & | operator[] (int i) |
void | output (ostream &out) const |
LVecBase2d | project (const LVecBase2d &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 (double x, double y) |
void | set_cell (int i, double value) |
void | set_x (double value) |
void | set_y (double 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 2: the number of components of a LVecBase2. More... | |
static const LVecBase2d & | unit_x () |
Returns a unit X vector. More... | |
static const LVecBase2d & | unit_y () |
Returns a unit Y vector. More... | |
static const LVecBase2d & | zero () |
Returns a zero-length vector. More... | |
Public Attributes | |
EVector2 | _v |
This is the base class for all two-component vectors and points.
Definition at line 1257 of file lvecBase2.h.
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Adds the vector into the running hash.
Definition at line 1955 of file lvecBase2.h.
References integer_hash< Key, Compare >::add_hash().
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Adds the vector into the running hash.
Definition at line 2020 of file lvecBase2.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 2230 of file lvecBase2.h.
Referenced by TextureReference::apply_properties_to_source(), and TextureReference::is_equivalent().
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Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
Definition at line 2243 of file lvecBase2.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 1714 of file lvecBase2.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 1736 of file lvecBase2.h.
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This flavor of compare_to uses a default threshold value based on the numeric type.
Definition at line 1923 of file lvecBase2.h.
Referenced by XFileVertex::set_from_egg().
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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 1992 of file lvecBase2.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 1725 of file lvecBase2.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 1747 of file lvecBase2.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 1759 of file lvecBase2.h.
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Adds the vector to the indicated hash generator.
Definition at line 1972 of file lvecBase2.h.
References ChecksumHashGenerator::add_int().
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Adds the vector to the indicated hash generator.
Definition at line 2034 of file lvecBase2.h.
References ChecksumHashGenerator::add_fp().
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Returns the address of the first of the two data elements in the vector.
The next element occupies the next position consecutively in memory.
Definition at line 1693 of file lvecBase2.h.
Referenced by Shader::get_language(), and XFileDataObject::set().
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Returns a suitable hash for phash_map.
Definition at line 1944 of file lvecBase2.h.
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Returns a suitable hash for phash_map.
Definition at line 2009 of file lvecBase2.h.
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Returns the number of elements in the vector, two.
Definition at line 1703 of file lvecBase2.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 1583 of file lvecBase2.h.
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Returns the length of the vector, by the Pythagorean theorem.
Definition at line 1816 of file lvecBase2.h.
Referenced by CLwoSurface::check_material(), and MayaShaderColorDef::get_panda_uvset_name().
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Returns the square of the vector's length, cheap and easy.
Definition at line 1799 of file lvecBase2.h.
Referenced by EggLoader::make_polyset().
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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 1833 of file lvecBase2.h.
Referenced by CollisionTube::get_test_pcollector().
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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 1854 of file lvecBase2.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 1885 of file lvecBase2.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 1870 of file lvecBase2.h.
References LVecBase2f::length_squared().
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Reads the vector from the Datagram using get_stdfloat().
Definition at line 2329 of file lvecBase2.h.
References DatagramIterator::get_int32(), and DatagramIterator::get_stdfloat().
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Reads the vector from the Datagram using get_float32() or get_float64().
Definition at line 2291 of file lvecBase2.h.
References DatagramIterator::get_float32(), DatagramIterator::get_float64(), and DatagramIterator::get_int32().
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inlinestatic |
Returns 2: the number of components of a LVecBase2.
Definition at line 1572 of file lvecBase2.h.
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inlinestatic |
Returns a unit X vector.
Definition at line 1521 of file lvecBase2.h.
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inlinestatic |
Returns a unit Y vector.
Definition at line 1531 of file lvecBase2.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 2313 of file lvecBase2.h.
References Datagram::add_int32(), and Datagram::add_stdfloat().
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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 2271 of file lvecBase2.h.
References Datagram::add_float32(), Datagram::add_float64(), and Datagram::add_int32().
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inlinestatic |
Returns a zero-length vector.
Definition at line 1511 of file lvecBase2.h.
Referenced by GeomVertexReader::get_data2d().