# SphericalRotationSequence¶

class astropy.modeling.rotations.SphericalRotationSequence(angles, axes_order, name=None, **kwargs)[source]

Perform a sequence of rotations about arbitrary number of axes in spherical coordinates.

Parameters
angleslist

A sequence of angles (in deg).

axes_orderstr

A sequence of characters (‘x’, ‘y’, or ‘z’) corresponding to the axis of rotation and matching the order in angles.

Attributes Summary

 n_inputs int(x=0) -> integer int(x, base=10) -> integer n_outputs int(x=0) -> integer int(x, base=10) -> integer

Methods Summary

 evaluate(self, lon, lat, angles) Apply the rotation to a set of 3D Cartesian coordinates.

Attributes Documentation

n_inputs

int(x=0) -> integer int(x, base=10) -> integer

Convert a number or string to an integer, or return 0 if no arguments are given. If x is a number, return x.__int__(). For floating point numbers, this truncates towards zero.

If x is not a number or if base is given, then x must be a string, bytes, or bytearray instance representing an integer literal in the given base. The literal can be preceded by ‘+’ or ‘-‘ and be surrounded by whitespace. The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to interpret the base from the string as an integer literal. >>> int(‘0b100’, base=0) 4

n_outputs

int(x=0) -> integer int(x, base=10) -> integer

Convert a number or string to an integer, or return 0 if no arguments are given. If x is a number, return x.__int__(). For floating point numbers, this truncates towards zero.

If x is not a number or if base is given, then x must be a string, bytes, or bytearray instance representing an integer literal in the given base. The literal can be preceded by ‘+’ or ‘-‘ and be surrounded by whitespace. The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to interpret the base from the string as an integer literal. >>> int(‘0b100’, base=0) 4

Methods Documentation

evaluate(self, lon, lat, angles)[source]

Apply the rotation to a set of 3D Cartesian coordinates.