LQuaternionf

from panda3d.core import LQuaternionf
class LQuaternionf

Bases: LVecBase4f

This is the base quaternion class

Inheritance diagram

Inheritance diagram of LQuaternionf

__init__(*args, **kwargs)
almostEqual()

C++ Interface: almost_equal(LQuaternionf self, const LQuaternionf other) almost_equal(LQuaternionf self, const LQuaternionf other, float threshold)

/**

  • Returns true if two quaternions are memberwise equal within a default

  • tolerance based on the numeric type.

*/

/**

  • Returns true if two quaternions are memberwise equal within a specified

  • tolerance.

*/

almostSameDirection()

C++ Interface: almost_same_direction(LQuaternionf self, const LQuaternionf other, float threshold)

/**

  • Returns true if two quaternions represent the same rotation within a

  • specified tolerance.

*/

almost_equal()

C++ Interface: almost_equal(LQuaternionf self, const LQuaternionf other) almost_equal(LQuaternionf self, const LQuaternionf other, float threshold)

/**

  • Returns true if two quaternions are memberwise equal within a default

  • tolerance based on the numeric type.

*/

/**

  • Returns true if two quaternions are memberwise equal within a specified

  • tolerance.

*/

almost_same_direction()

C++ Interface: almost_same_direction(LQuaternionf self, const LQuaternionf other, float threshold)

/**

  • Returns true if two quaternions represent the same rotation within a

  • specified tolerance.

*/

angleDeg()

C++ Interface: angle_deg(LQuaternionf self, const LQuaternionf other)

/**

  • Returns the angle between the orientation represented by this quaternion

  • and the other one, expressed in degrees.

*/

angleRad()

C++ Interface: angle_rad(LQuaternionf self, const LQuaternionf other)

/**

  • Returns the angle between the orientation represented by this quaternion

  • and the other one, expressed in radians.

*/

angle_deg()

C++ Interface: angle_deg(LQuaternionf self, const LQuaternionf other)

/**

  • Returns the angle between the orientation represented by this quaternion

  • and the other one, expressed in degrees.

*/

angle_rad()

C++ Interface: angle_rad(LQuaternionf self, const LQuaternionf other)

/**

  • Returns the angle between the orientation represented by this quaternion

  • and the other one, expressed in radians.

*/

conjugate()

C++ Interface: conjugate(LQuaternionf self)

/**

  • Returns the complex conjugate of this quat.

*/

conjugateFrom()

C++ Interface: conjugate_from(const LQuaternionf self, const LQuaternionf other)

/**

  • Computes the conjugate of the other quat, and stores the result in this

  • quat. This is a fully general operation and makes no assumptions about the

  • type of transform represented by the quat.

  • The other quat must be a different object than this quat. However, if you

  • need to get a conjugate of a quat in place, see conjugate_in_place.

  • The return value is true if the quat was successfully inverted, false if

  • there was a singularity.

*/

conjugateInPlace()

C++ Interface: conjugate_in_place(const LQuaternionf self)

/**

  • Sets this to be the conjugate of the current quat. Returns true if the

  • successful, false if the quat was singular.

*/

conjugate_from()

C++ Interface: conjugate_from(const LQuaternionf self, const LQuaternionf other)

/**

  • Computes the conjugate of the other quat, and stores the result in this

  • quat. This is a fully general operation and makes no assumptions about the

  • type of transform represented by the quat.

  • The other quat must be a different object than this quat. However, if you

  • need to get a conjugate of a quat in place, see conjugate_in_place.

  • The return value is true if the quat was successfully inverted, false if

  • there was a singularity.

*/

conjugate_in_place()

C++ Interface: conjugate_in_place(const LQuaternionf self)

/**

  • Sets this to be the conjugate of the current quat. Returns true if the

  • successful, false if the quat was singular.

*/

extractToMatrix()

C++ Interface: extract_to_matrix(LQuaternionf self, LMatrix4f m) extract_to_matrix(LQuaternionf self, LMatrix3f m)

/**

  • Based on the quat lib from VRPN.

*/

/**

  • Based on the quat lib from VRPN.

*/

extract_to_matrix()

C++ Interface: extract_to_matrix(LQuaternionf self, LMatrix4f m) extract_to_matrix(LQuaternionf self, LMatrix3f m)

/**

  • Based on the quat lib from VRPN.

*/

/**

  • Based on the quat lib from VRPN.

*/

getAngle()

C++ Interface: get_angle(LQuaternionf self)

/**

  • This, along with get_axis(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the angle, in

  • degrees counterclockwise about the axis.

  • It is necessary to ensure the quaternion has been normalized (for instance,

  • with a call to normalize()) before calling this method.

*/

getAngleRad()

C++ Interface: get_angle_rad(LQuaternionf self)

/**

  • This, along with get_axis(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the angle, in

  • radians counterclockwise about the axis.

  • It is necessary to ensure the quaternion has been normalized (for instance,

  • with a call to normalize()) before calling this method.

*/

getAxis()

C++ Interface: get_axis(LQuaternionf self)

/**

  • This, along with get_angle(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the axis; it

  • is not normalized.

*/

getAxisNormalized()

C++ Interface: get_axis_normalized(LQuaternionf self)

/**

  • This, along with get_angle(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the

  • normalized axis.

*/

getClassType()

C++ Interface: get_class_type()

getForward()

C++ Interface: get_forward(LQuaternionf self, int cs)

/**

  • Returns the orientation represented by this quaternion, expressed as a

  • forward vector.

*/

getHpr()

C++ Interface: get_hpr(LQuaternionf self, int cs)

/**

  • Extracts the equivalent Euler angles from the unit quaternion.

*/

getI()

C++ Interface: get_i(LQuaternionf self)

/**

*/

getJ()

C++ Interface: get_j(LQuaternionf self)

/**

*/

getK()

C++ Interface: get_k(LQuaternionf self)

/**

*/

getR()

C++ Interface: get_r(LQuaternionf self)

/**

*/

getRight()

C++ Interface: get_right(LQuaternionf self, int cs)

/**

  • Returns the orientation represented by this quaternion, expressed as a

  • right vector.

*/

getUp()

C++ Interface: get_up(LQuaternionf self, int cs)

/**

  • Returns the orientation represented by this quaternion, expressed as an up

  • vector.

*/

get_angle()

C++ Interface: get_angle(LQuaternionf self)

/**

  • This, along with get_axis(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the angle, in

  • degrees counterclockwise about the axis.

  • It is necessary to ensure the quaternion has been normalized (for instance,

  • with a call to normalize()) before calling this method.

*/

get_angle_rad()

C++ Interface: get_angle_rad(LQuaternionf self)

/**

  • This, along with get_axis(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the angle, in

  • radians counterclockwise about the axis.

  • It is necessary to ensure the quaternion has been normalized (for instance,

  • with a call to normalize()) before calling this method.

*/

get_axis()

C++ Interface: get_axis(LQuaternionf self)

/**

  • This, along with get_angle(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the axis; it

  • is not normalized.

*/

get_axis_normalized()

C++ Interface: get_axis_normalized(LQuaternionf self)

/**

  • This, along with get_angle(), returns the rotation represented by the

  • quaternion as an angle about an arbitrary axis. This returns the

  • normalized axis.

*/

get_class_type()

C++ Interface: get_class_type()

get_forward()

C++ Interface: get_forward(LQuaternionf self, int cs)

/**

  • Returns the orientation represented by this quaternion, expressed as a

  • forward vector.

*/

get_hpr()

C++ Interface: get_hpr(LQuaternionf self, int cs)

/**

  • Extracts the equivalent Euler angles from the unit quaternion.

*/

get_i()

C++ Interface: get_i(LQuaternionf self)

/**

*/

get_j()

C++ Interface: get_j(LQuaternionf self)

/**

*/

get_k()

C++ Interface: get_k(LQuaternionf self)

/**

*/

get_r()

C++ Interface: get_r(LQuaternionf self)

/**

*/

get_right()

C++ Interface: get_right(LQuaternionf self, int cs)

/**

  • Returns the orientation represented by this quaternion, expressed as a

  • right vector.

*/

get_up()

C++ Interface: get_up(LQuaternionf self, int cs)

/**

  • Returns the orientation represented by this quaternion, expressed as an up

  • vector.

*/

identQuat()

C++ Interface: ident_quat()

/**

  • Returns an identity quaternion.

*/

ident_quat()

C++ Interface: ident_quat()

/**

  • Returns an identity quaternion.

*/

invertFrom()

C++ Interface: invert_from(const LQuaternionf self, const LQuaternionf other)

/**

  • Computes the inverse of the other quat, and stores the result in this quat.

  • This is a fully general operation and makes no assumptions about the type

  • of transform represented by the quat.

  • The other quat must be a different object than this quat. However, if you

  • need to invert a quat in place, see invert_in_place.

  • The return value is true if the quat was successfully inverted, false if

  • there was a singularity.

*/

invertInPlace()

C++ Interface: invert_in_place(const LQuaternionf self)

/**

  • Inverts the current quat. Returns true if the inverse is successful, false

  • if the quat was singular.

*/

invert_from()

C++ Interface: invert_from(const LQuaternionf self, const LQuaternionf other)

/**

  • Computes the inverse of the other quat, and stores the result in this quat.

  • This is a fully general operation and makes no assumptions about the type

  • of transform represented by the quat.

  • The other quat must be a different object than this quat. However, if you

  • need to invert a quat in place, see invert_in_place.

  • The return value is true if the quat was successfully inverted, false if

  • there was a singularity.

*/

invert_in_place()

C++ Interface: invert_in_place(const LQuaternionf self)

/**

  • Inverts the current quat. Returns true if the inverse is successful, false

  • if the quat was singular.

*/

isAlmostIdentity()

C++ Interface: is_almost_identity(LQuaternionf self, float tolerance)

/**

  • Returns true if this quaternion represents the identity transformation

  • within a given tolerance.

*/

isIdentity()

C++ Interface: is_identity(LQuaternionf self)

/**

  • Returns true if this quaternion represents the identity transformation: no

  • rotation.

*/

isSameDirection()

C++ Interface: is_same_direction(LQuaternionf self, const LQuaternionf other)

/**

  • Returns true if two quaternions represent the same rotation within a

  • default tolerance based on the numeric type.

*/

is_almost_identity()

C++ Interface: is_almost_identity(LQuaternionf self, float tolerance)

/**

  • Returns true if this quaternion represents the identity transformation

  • within a given tolerance.

*/

is_identity()

C++ Interface: is_identity(LQuaternionf self)

/**

  • Returns true if this quaternion represents the identity transformation: no

  • rotation.

*/

is_same_direction()

C++ Interface: is_same_direction(LQuaternionf self, const LQuaternionf other)

/**

  • Returns true if two quaternions represent the same rotation within a

  • default tolerance based on the numeric type.

*/

multiply()

C++ Interface: multiply(LQuaternionf self, const LQuaternionf rhs)

/**

  • actual multiply call (non virtual)

*/

normalize()

C++ Interface: normalize(const LQuaternionf self)

/**

*/

output()

C++ Interface: output(LQuaternionf self, ostream param0)

/**

*/

pureImaginary()

C++ Interface: pure_imaginary(const LVector3f v)

/**

*/

pure_imaginary()

C++ Interface: pure_imaginary(const LVector3f v)

/**

*/

setFromAxisAngle()

C++ Interface: set_from_axis_angle(const LQuaternionf self, float angle_deg, const LVector3f axis)

/**

  • angle_deg is the angle about the axis in degrees. axis must be normalized.

*/

setFromAxisAngleRad()

C++ Interface: set_from_axis_angle_rad(const LQuaternionf self, float angle_rad, const LVector3f axis)

/**

  • angle_rad is the angle about the axis in radians. axis must be normalized.

*/

setFromMatrix()

C++ Interface: set_from_matrix(const LQuaternionf self, const LMatrix4f m) set_from_matrix(const LQuaternionf self, const LMatrix3f m)

/**

*/

/**

  • Sets the quaternion according to the rotation represented by the matrix.

  • Originally we tried an algorithm presented by Do-While Jones, but that

  • turned out to be broken. This is based on the quat lib from UNC.

*/

setHpr()

C++ Interface: set_hpr(const LQuaternionf self, const LVecBase3f hpr, int cs)

/**

  • Sets the quaternion as the unit quaternion that is equivalent to these

  • Euler angles. (from Real-time Rendering, p.49)

*/

setI()

C++ Interface: set_i(const LQuaternionf self, float i)

/**

*/

setJ()

C++ Interface: set_j(const LQuaternionf self, float j)

/**

*/

setK()

C++ Interface: set_k(const LQuaternionf self, float k)

/**

*/

setR()

C++ Interface: set_r(const LQuaternionf self, float r)

/**

*/

set_from_axis_angle()

C++ Interface: set_from_axis_angle(const LQuaternionf self, float angle_deg, const LVector3f axis)

/**

  • angle_deg is the angle about the axis in degrees. axis must be normalized.

*/

set_from_axis_angle_rad()

C++ Interface: set_from_axis_angle_rad(const LQuaternionf self, float angle_rad, const LVector3f axis)

/**

  • angle_rad is the angle about the axis in radians. axis must be normalized.

*/

set_from_matrix()

C++ Interface: set_from_matrix(const LQuaternionf self, const LMatrix4f m) set_from_matrix(const LQuaternionf self, const LMatrix3f m)

/**

*/

/**

  • Sets the quaternion according to the rotation represented by the matrix.

  • Originally we tried an algorithm presented by Do-While Jones, but that

  • turned out to be broken. This is based on the quat lib from UNC.

*/

set_hpr()

C++ Interface: set_hpr(const LQuaternionf self, const LVecBase3f hpr, int cs)

/**

  • Sets the quaternion as the unit quaternion that is equivalent to these

  • Euler angles. (from Real-time Rendering, p.49)

*/

set_i()

C++ Interface: set_i(const LQuaternionf self, float i)

/**

*/

set_j()

C++ Interface: set_j(const LQuaternionf self, float j)

/**

*/

set_k()

C++ Interface: set_k(const LQuaternionf self, float k)

/**

*/

set_r()

C++ Interface: set_r(const LQuaternionf self, float r)

/**

*/

xform()

C++ Interface: xform(LQuaternionf self, const LVecBase4f v) xform(LQuaternionf self, const LVecBase3f v)

/**

  • Transforms a 3-d vector by the indicated rotation

*/

/**

  • Transforms a 4-d vector by the indicated rotation

*/