LVecBase2i

class LVecBase2i

This is the base class for all two-component vectors and points.

Inheritance diagram

LVecBase2i(void) = default

LVecBase2i(int fill_value)

LVecBase2i(int x, int y)

LVecBase2i(LVecBase2i const&) = default

std::size_t add_hash(std::size_t hash) const

Adds the vector into the running hash.

void add_to_cell(int i, int value)

These next functions add to an existing value. i.e. foo.set_x(foo.get_x() + value) These are useful to reduce overhead in scripting languages:

void add_x(int value)

void add_y(int value)

bool almost_equal(LVecBase2i const &other, int threshold) const

bool almost_equal(LVecBase2i const &other) const

Returns true if two vectors are memberwise equal within a specified tolerance.

Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.

int compare_to(LVecBase2i const &other) const

This flavor of compare_to uses a default threshold value based on the numeric type.

void componentwise_mult(LVecBase2i const &other)

int dot(LVecBase2i const &other) const

void fill(int fill_value)

Sets each element of the vector to the indicated fill_value. This is particularly useful for initializing to zero.

LVecBase2i fmax(LVecBase2i const &other) const

LVecBase2i fmin(LVecBase2i const &other) const

void generate_hash(ChecksumHashGenerator &hashgen) const

Adds the vector to the indicated hash generator.

int get_cell(int i) const

static TypeHandle get_class_type(void)

int const *get_data(void) const

Returns the address of the first of the two data elements in the vector. The next element occupies the next position consecutively in memory.

std::size_t get_hash(void) const

Returns a suitable hash for phash_map.

static constexpr int get_num_components(void)

int get_x(void) const

int get_y(void) const

bool is_nan(void) const

Returns true if any component of the vector is not-a-number, false otherwise.

int length_squared(void) const

Returns the square of the vector’s length, cheap and easy.

void output(std::ostream &out) const

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(). See write_datagram_fixed().

void set(int x, int y)

void set_cell(int i, int value)

void set_x(int value)

void set_y(int value)

static constexpr int size(void)

LVecBase2i const &unit_x(void)

Returns a unit X vector.

LVecBase2i const &unit_y(void)

Returns a unit Y vector.

bool validate_ptr(void const *ptr)

void write_datagram(Datagram &destination) const

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.

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(). This is appropriate when you want to write a fixed-width value to the datagram, especially when you are not writing a bam file.

LVecBase2i const &zero(void)

Returns a zero-length vector.