CylindricalDifferential#

class astropy.coordinates.CylindricalDifferential(d_rho, d_phi=None, d_z=None, copy=False)[source]#

Bases: BaseDifferential

Differential(s) of points in cylindrical coordinates.

Parameters:

d_rhoQuantity [:ref: ‘speed’]: The differential cylindrical radius.
d_phiQuantity [:ref: ‘angular speed’]: The differential azimuth.
d_zQuantity [:ref: ‘speed’]: The differential height.
copybool, optional: If True (default), arrays will be copied. If False, arrays will be references, though possibly broadcast to ensure matching shapes.

Attributes Summary

`attr_classes`
`d_phi`	Component 'd_phi' of the Differential.
`d_rho`	Component 'd_rho' of the Differential.
`d_z`	Component 'd_z' of the Differential.

Attributes Documentation

attr_classes = {'d_phi': <class 'astropy.units.quantity.Quantity'>, 'd_rho': <class 'astropy.units.quantity.Quantity'>, 'd_z': <class 'astropy.units.quantity.Quantity'>}#

d_phi#: Component ‘d_phi’ of the Differential.

d_rho#: Component ‘d_rho’ of the Differential.

d_z#: Component ‘d_z’ of the Differential.