R6Tangent class
Static methods
- def Generator(i: int) -> numpy.ndarray[numpy.float64[7, 7]]
- Static helper to get the ith basis element of the Lie Algebra.
- def InnerWeights() -> numpy.ndarray[numpy.float64[6, 6]]
- Static helper to get the weight matrix of the Weighted Euclidean inner product, relative to the space basis.
- def Random() -> R6Tangent
- Static helper to create a random object of the Lie group.
- def Zero() -> R6Tangent
- Static helper to create an object of the Lie group tangent set to zero.
Methods
- def coeffs(self, /) -> numpy.ndarray[numpy.float64[6, 1]]
- Get a reference to underlying data.
- def coeffs_copy(self, /) -> numpy.ndarray[numpy.float64[6, 1]]
- Return a copy of underlying data.
- def exp(self, J_out_self: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None) -> R6
- Get the corresponding Lie group element.
- def generator(self, i: int) -> numpy.ndarray[numpy.float64[7, 7]]
- Get the ith basis element of the Lie Algebra.
- def hat(self, /) -> numpy.ndarray[numpy.float64[7, 7]]
- Get the isomorphic element in the Lie algebra.
- def inner(self, other: manifpy._bindings._R6TangentBase) -> float
- Get inner product of this and another Tangent weighted by W.
- def innerWeights(self, /) -> numpy.ndarray[numpy.float64[6, 6]]
- Get the weight matrix of the Weighted Euclidean inner product, relative to the space basis.
- def isApprox(self, other: R6Tangent, eps: float = 1e-10) -> bool
- Evaluate whether self and other are 'close'.
- def isApprox(self, other: numpy.ndarray[numpy.float64[6, 1]], eps: float = 1e-10) -> bool
- Evaluate whether self and other are 'close'.
- def ljac(self, /) -> numpy.ndarray[numpy.float64[6, 6]]
- Get the left Jacobian.
- def lplus(self, state: R6, J_out_self: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None, J_out_state: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None) -> R6
- Left oplus operation of the Lie group.
- def minus(self, other: manifpy._bindings._R6TangentBase, J_out_self: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None, J_out_other: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None) -> R6Tangent
- Minus operation in the vector space.
- def plus(self, state: R6, J_out_self: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None, J_out_state: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None) -> R6
- An alias for the 'rplus' function.
- def plus(self, other: manifpy._bindings._R6TangentBase, J_out_self: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None, J_out_other: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None) -> R6Tangent
- Plus operation in the vector space.
- def rjac(self, /) -> numpy.ndarray[numpy.float64[6, 6]]
- Get the right Jacobian.
- def rplus(self, state: R6, J_out_self: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None, J_out_state: typing.Optional[numpy.ndarray[numpy.float64[6, 6], flags.writeable, flags.c_contiguous]] = None) -> R6
- Right oplus operation of the Lie group.
- def setRandom(self, /) -> R6Tangent
- Set self to a random value.
- def setZero(self, /) -> R6Tangent
- Set self to zero.
- def smallAdj(self, /) -> numpy.ndarray[numpy.float64[6, 6]]
- def squaredWeightedNorm(self, /) -> float
- Get the squared Euclidean weighted norm.
- def weightedNorm(self, /) -> float
- Get the Euclidean weighted norm.
Special methods
- def __add__(self, arg0: R6, /) -> R6
- Operator overload for the 'plus' function.
- def __add__(self, arg0: R6Tangent, /) -> R6Tangent
- Operator overload for the 'plus' function.
- def __eq__(self, arg0: R6Tangent, /) -> bool
- Operator overload for the 'isApprox' function.
- def __init__(self, /) -> None
- Default constructor, uninitialized data.
- def __init__(self, arg0: numpy.ndarray[numpy.float64[6, 1]], /) -> None
- Constructor given data vector.
- def __mul__(self, arg0: float, /) -> R6Tangent
- Multiply the vector by a scalar.
- def __neg__(self, /) -> R6Tangent
- def __rmatmul__(self, arg0: numpy.ndarray[numpy.float64], /) -> R6Tangent
- def __rmul__(self, arg0: float, /) -> R6Tangent
- Multiply the vector by a scalar.
- def __rmul__(self, arg0: numpy.ndarray[numpy.float64], /) -> R6Tangent
- def __str__(self, /) -> str
- def __sub__(self, arg0: R6Tangent, /) -> R6Tangent
- Operator overload for the 'minus' function.
- def __truediv__(self, arg0: float, /) -> R6Tangent
- Divide the vector by a scalar.
Data
Method documentation
def manifpy.
Get the isomorphic element in the Lie algebra.
See Eq. (10).
def manifpy.
Get inner product of this and another Tangent weighted by W.
ret = self^T x W x other
def manifpy.
Evaluate whether self and other are 'close'.
Parameters ---------- other : numpy.array Another object of the same Lie group tangent. eps : double Threshold for equality comparison. Default: 1e-10.
def manifpy.
Get the left Jacobian.
This is the left Jacobian of 'exp', what is commonly known as "the left Jacobian".
See Eq. (44) for the left Jacobian of general functions. See Eqs. (126,145,164,179,191) for implementations of the left Jacobian of exp.
def manifpy.
Left oplus operation of the Lie group.
See Eqs. (27).
Parameters ---------- other : Lie group Another object of the same Lie group. J_out_self [out] : numpy.ndarray Jacobian of the oplus operation wrt self. J_out_state [out] : numpy.ndarray Jacobian of the oplus operation wrt state.
def manifpy.
Minus operation in the vector space.
Parameters ---------- other : Lie group tangent Another object of the same Lie group tangent. J_out_self [out] : numpy.ndarray Jacobian of the oplus operation wrt self. J_out_other [out] : numpy.ndarray Jacobian of the oplus operation wrt other.
def manifpy.
Plus operation in the vector space.
Parameters ---------- other : Lie group tangent Another object of the same Lie group tangent. J_out_self [out] : numpy.ndarray Jacobian of the oplus operation wrt self. J_out_other [out] : numpy.ndarray Jacobian of the oplus operation wrt other.
def manifpy.
Get the right Jacobian.
This is the right Jacobian of 'exp', what is commonly known as "the right Jacobian".
See Eq. (41) for the right Jacobian of general functions. See Eqs. (126,143,163,179,191) for implementations of the right Jacobian of exp.
def manifpy.
Right oplus operation of the Lie group.
See Eqs. (25).
Parameters ---------- other : Lie group Another object of the same Lie group. J_out_self [out] : numpy.ndarray Jacobian of the oplus operation wrt self. J_out_state [out] : numpy.ndarray Jacobian of the oplus operation wrt state.