Classes |
class | CRow |
class | Row |
Public Types |
typedef const float * | const_iterator |
typedef const float * | iterator |
Public Member Functions |
| LMatrix3f (const LMatrix3f &other) |
| LMatrix3f (float e00, float e01, float e02, float e10, float e11, float e12, float e20, float e21, float e22) |
size_t | add_hash (size_t hash) const |
| Adds the vector into the running hash.
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size_t | add_hash (size_t hash, float threshold) const |
| Adds the vector into the running hash.
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bool | almost_equal (const LMatrix3f &other, float threshold) const |
| Returns true if two matrices are memberwise equal within a specified tolerance.
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bool | almost_equal (const LMatrix3f &other) const |
| Returns true if two matrices are memberwise equal within a default tolerance based on the numeric type.
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const_iterator | begin () const |
| Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
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iterator | begin () |
| Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
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int | compare_to (const LMatrix3f &other) const |
| This flavor of compare_to uses a default threshold value based on the numeric type.
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int | compare_to (const LMatrix3f &other, float threshold) const |
| Sorts matrices lexicographically, componentwise.
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float | determinant () const |
| Returns the determinant of the matrix.
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const_iterator | end () const |
| Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
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iterator | end () |
| Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
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void | fill (float fill_value) |
| Sets each element of the matrix to the indicated fill_value.
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void | generate_hash (ChecksumHashGenerator &hashgen) const |
| Adds the vector to the indicated hash generator.
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void | generate_hash (ChecksumHashGenerator &hashgen, float threshold) const |
| Adds the vector to the indicated hash generator.
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float | get_cell (int row, int col) const |
| Returns a particular element of the matrix.
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LVecBase3f | get_col (int col) const |
| Returns the indicated column of the matrix as a three-component vector.
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LVecBase2f | get_col2 (int col) const |
| Returns the indicated column of the matrix as a two-component vector, ignoring the last row.
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const float * | get_data () const |
| Returns the address of the first of the nine data elements in the matrix.
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size_t | get_hash () const |
| Returns a suitable hash for phash_map.
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size_t | get_hash (float threshold) const |
| Returns a suitable hash for phash_map.
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int | get_num_components () const |
| Returns the number of elements in the matrix, nine.
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void | get_row (LVecBase3f &result_vec, int row) const |
LVecBase3f | get_row (int row) const |
| Returns the indicated row of the matrix as a three-component vector.
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LVecBase2f | get_row2 (int row) const |
| Returns the indicated row of the matrix as a two-component vector, ignoring the last column.
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bool | invert_from (const LMatrix3f &other) |
| Computes the inverse of the other matrix, and stores the result in this matrix.
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bool | invert_in_place () |
| Inverts the current matrix.
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bool | invert_transpose_from (const LMatrix4f &other) |
| Simultaneously computes the inverse of the indicated matrix, and then the transpose of that inverse.
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bool | invert_transpose_from (const LMatrix3f &other) |
| Simultaneously computes the inverse of the indicated matrix, and then the transpose of that inverse.
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bool | is_nan () const |
| Returns true if any component of the matrix is not-a-number, false otherwise.
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| MAKE_SEQ (get_row2s, size, get_row2) |
| MAKE_SEQ (get_col2s, size, get_col2) |
| MAKE_SEQ (get_rows, size, get_row) |
| MAKE_SEQ (get_cols, size, get_col) |
void | multiply (const LMatrix3f &other1, const LMatrix3f &other2) |
bool | operator!= (const LMatrix3f &other) const |
float & | operator() (int row, int col) |
float | operator() (int row, int col) const |
LMatrix3f | operator* (const LMatrix3f &other) const |
LMatrix3f | operator* (float scalar) const |
LMatrix3f & | operator*= (const LMatrix3f &other) |
LMatrix3f & | operator*= (float scalar) |
| Performs a memberwise scale.
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LMatrix3f & | operator+= (const LMatrix3f &other) |
| Performs a memberwise addition between two matrices.
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LMatrix3f & | operator-= (const LMatrix3f &other) |
| Performs a memberwise subtraction between two matrices.
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LMatrix3f | operator/ (float scalar) const |
LMatrix3f & | operator/= (float scalar) |
| Performs a memberwise scale.
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bool | operator< (const LMatrix3f &other) const |
| This performs a lexicographical comparison.
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LMatrix3f & | operator= (float fill_value) |
LMatrix3f & | operator= (const LMatrix3f &other) |
bool | operator== (const LMatrix3f &other) const |
Row | operator[] (int i) |
CRow | operator[] (int i) const |
void | output (ostream &out) const |
void | read_datagram (DatagramIterator &scan) |
| Reads itself out of the datagram.
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void | set (float e00, float e01, float e02, float e10, float e11, float e12, float e20, float e21, float e22) |
void | set_cell (int row, int col, float value) |
| Changes a particular element of the matrix.
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void | set_col (int col, const LVecBase2f &v) |
| Replaces the indicated column of the matrix from a two-component vector, ignoring the last row.
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void | set_col (int col, const LVecBase3f &v) |
| Replaces the indicated column of the matrix from a three-component vector.
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void | set_rotate_mat (float angle) |
| Fills mat with a matrix that rotates by the given angle in degrees counterclockwise.
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void | set_rotate_mat (float angle, LVecBase3f axis, CoordinateSystem cs=CS_default) |
| Fills mat with a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
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void | set_rotate_mat_normaxis (float angle, const LVecBase3f &axis, CoordinateSystem cs=CS_default) |
| Fills mat with a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
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void | set_row (int row, const LVecBase3f &v) |
| Replaces the indicated row of the matrix from a three-component vector.
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void | set_row (int row, const LVecBase2f &v) |
| Replaces the indicated row of the matrix from a two-component vector, ignoring the last column.
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void | set_scale_mat (const LVecBase3f &scale) |
| Fills mat with a matrix that applies the indicated scale in each of the three axes.
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void | set_scale_mat (const LVecBase2f &scale) |
| Fills mat with a matrix that applies the indicated scale in each of the two axes.
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void | set_scale_shear_mat (const LVecBase3f &scale, const LVecBase3f &shear, CoordinateSystem cs=CS_default) |
| Fills mat with a matrix that applies the indicated scale and shear.
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void | set_shear_mat (const LVecBase3f &shear, CoordinateSystem cs=CS_default) |
| Fills mat with a matrix that applies the indicated shear in each of the three planes.
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void | set_translate_mat (const LVecBase2f &trans) |
| Fills mat with a matrix that applies the indicated translation.
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void | transpose_from (const LMatrix3f &other) |
void | transpose_in_place () |
void | write (ostream &out, int indent_level=0) const |
void | write_datagram (Datagram &destination) const |
| Writes the matrix to the datagram.
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LVecBase3f | xform (const LVecBase3f &v) const |
| 3-component vector or point times matrix.
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LVecBase2f | xform_point (const LVecBase2f &v) const |
| The matrix transforms a 2-component point (including translation component) and returns the result.
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LVecBase3f | xform_vec (const LVecBase3f &v) const |
| The matrix transforms a 3-component vector and returns the result.
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LVecBase2f | xform_vec (const LVecBase2f &v) const |
| The matrix transforms a 2-component vector (without translation component) and returns the result.
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LVecBase3f | xform_vec_general (const LVecBase3f &v) const |
| The matrix transforms a 3-component vector (without translation component) and returns the result, as a fully general operation.
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Static Public Member Functions |
static const LMatrix3f & | convert_mat (CoordinateSystem from, CoordinateSystem to) |
| Returns a matrix that transforms from the indicated coordinate system to the indicated coordinate system.
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static TypeHandle | get_class_type () |
static const LMatrix3f & | ident_mat () |
| Returns an identity matrix.
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static void | init_type () |
static LMatrix3f | rotate_mat (float angle, LVecBase3f axis, CoordinateSystem cs=CS_default) |
| Returns a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
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static LMatrix3f | rotate_mat (float angle) |
| Returns a matrix that rotates by the given angle in degrees counterclockwise.
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static LMatrix3f | rotate_mat_normaxis (float angle, const LVecBase3f &axis, CoordinateSystem cs=CS_default) |
| Returns a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
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static LMatrix3f | scale_mat (const LVecBase3f &scale) |
| Returns a matrix that applies the indicated scale in each of the three axes.
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static LMatrix3f | scale_mat (float sx, float sy, float sz) |
| Returns a matrix that applies the indicated scale in each of the three axes.
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static LMatrix3f | scale_mat (const LVecBase2f &scale) |
| Returns a matrix that applies the indicated scale in each of the two axes.
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static LMatrix3f | scale_mat (float sx, float sy) |
| Returns a matrix that applies the indicated scale in each of the two axes.
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static LMatrix3f | scale_shear_mat (const LVecBase3f &scale, const LVecBase3f &shear, CoordinateSystem cs=CS_default) |
| Returns a matrix that applies the indicated scale and shear.
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static LMatrix3f | scale_shear_mat (float sx, float sy, float sz, float shxy, float shxz, float shyz, CoordinateSystem cs=CS_default) |
| Returns a matrix that applies the indicated scale and shear.
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static LMatrix3f | shear_mat (float shxy, float shxz, float shyz, CoordinateSystem cs=CS_default) |
| Returns a matrix that applies the indicated shear in each of the three planes.
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static LMatrix3f | shear_mat (const LVecBase3f &shear, CoordinateSystem cs=CS_default) |
| Returns a matrix that applies the indicated shear in each of the three planes.
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static int | size () |
| Returns 3: the number of rows of a LMatrix3.
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static LMatrix3f | translate_mat (const LVecBase2f &trans) |
| Returns a matrix that applies the indicated translation.
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static LMatrix3f | translate_mat (float tx, float ty) |
| Returns a matrix that applies the indicated translation.
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Public Attributes |
union { |
float data [3 *3] |
struct { |
float _00 |
float _01 |
float _02 |
float _10 |
float _11 |
float _12 |
float _20 |
float _21 |
float _22 |
} m |
} | _m |
This is a 3-by-3 transform matrix.
It typically will represent either a rotation-and-scale (no translation) matrix in 3-d, or a full affine matrix (rotation, scale, translation) in 2-d, e.g. for a texture matrix.
Definition at line 104 of file lmatrix.h.