LVecBase2i
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class LVecBase2i
This is the base class for all two-component vectors and points.
Inheritance diagram
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LVecBase2i(void) = default
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LVecBase2i(int fill_value)
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LVecBase2i(int x, int y)
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LVecBase2i(LVecBase2i const&) = default
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std::size_t add_hash(std::size_t hash) const
Adds the vector into the running hash.
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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:
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void add_x(int value)
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void add_y(int value)
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bool almost_equal(LVecBase2i const &other, int threshold) const
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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.
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int compare_to(LVecBase2i const &other) const
This flavor of compare_to uses a default threshold value based on the numeric type.
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void componentwise_mult(LVecBase2i const &other)
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int dot(LVecBase2i const &other) const
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void fill(int fill_value)
Sets each element of the vector to the indicated fill_value. This is particularly useful for initializing to zero.
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LVecBase2i fmax(LVecBase2i const &other) const
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LVecBase2i fmin(LVecBase2i const &other) const
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void generate_hash(ChecksumHashGenerator &hashgen) const
Adds the vector to the indicated hash generator.
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int get_cell(int i) const
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static TypeHandle get_class_type(void)
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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.
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std::size_t get_hash(void) const
Returns a suitable hash for phash_map.
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static constexpr int get_num_components(void)
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int get_x(void) const
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int get_y(void) const
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bool is_nan(void) const
Returns true if any component of the vector is not-a-number, false otherwise.
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int length_squared(void) const
Returns the square of the vector’s length, cheap and easy.
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void output(std::ostream &out) const
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void read_datagram(DatagramIterator &source)
Reads the vector from the Datagram using get_stdfloat().
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void read_datagram_fixed(DatagramIterator &source)
Reads the vector from the Datagram using get_float32() or get_float64(). See
write_datagram_fixed()
.
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void set(int x, int y)
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void set_cell(int i, int value)
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void set_x(int value)
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void set_y(int value)
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static constexpr int size(void)
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LVecBase2i const &unit_x(void)
Returns a unit X vector.
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LVecBase2i const &unit_y(void)
Returns a unit Y vector.
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bool validate_ptr(void const *ptr)
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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.
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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.
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LVecBase2i const &zero(void)
Returns a zero-length vector.
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LVecBase2i(void) = default