Screen1D

class screens.screen.Screen1D(normal, p=<Quantity 0. AU>, v=<Quantity 0. km / s>, magnification=1.0, *, dp_dalpha=<Quantity 0. AU / mas>, source=None, distance=None)

Bases: Screen

One-dimensional screen.

The assumption is that all scattering points are on lines, which represent places where light can be bent perpendicular to the line, such that it reaches the observer. The positions of the scattering ponts along the lines then depends on where the source and detector are.

Parameters:

normalCartesianRepresentation

Unit vector towards the line. Should not include a z component, i.e., be perpendicular to both the line and the z axis.

pQuantity

Separations of the lines from the origin, along the normal.

vQuantity

Velocities of the lines along the normal.

magnificationarray-like

Magnification of scattering points for the lines. Can be complex.

sourceSource or Screen, optional

Possible source illuminating this screen. Unless specific broadcasting is required, it is recommended to use the Screen.observe method.

distanceQuantity, optional

Possible distance from the source. Only useful if source is given.

Attributes Summary

T	Return an instance with the data transposed.
brightness	Brightness of each path.
isscalar
ndim	The number of dimensions of the instance and underlying arrays.
shape	The shape of the underlying data.
size	The size of the object, as calculated from its shape.
tau	Delay for each path.
taudot	Time derivative of the delay for each path.

Methods Summary

copy(*args, **kwargs)	Return an instance containing copies of the internal data.
diagonal(*args, **kwargs)	Return an instance with the specified diagonals.
flatten(*args, **kwargs)	Return a copy with the array collapsed into one dimension.
observe(source, distance)
ravel(*args, **kwargs)	Return an instance with the array collapsed into one dimension.
reshape(*args, **kwargs)	Returns an instance containing the same data with a new shape.
squeeze(*args, **kwargs)	Return an instance with single-dimensional shape entries removed.
swapaxes(*args, **kwargs)	Return an instance with the given axes interchanged.
take(indices[, axis, out, mode])	Return a new instance formed from the elements at the given indices.
transpose(*args, **kwargs)	Return an instance with the data transposed.

Attributes Documentation

T

Return an instance with the data transposed.

Parameters are as for T. All internal data are views of the data of the original.

brightness

Brightness of each path.

isscalar

ndim

The number of dimensions of the instance and underlying arrays.

shape

size

The size of the object, as calculated from its shape.

tau

Delay for each path.

taudot

Time derivative of the delay for each path.

Methods Documentation

copy(*args, **kwargs)

Return an instance containing copies of the internal data.

Parameters are as for copy().

diagonal(*args, **kwargs)

Return an instance with the specified diagonals.

Parameters are as for diagonal(). All internal data are views of the data of the original.

flatten(*args, **kwargs)

Return a copy with the array collapsed into one dimension.

Parameters are as for flatten().

observe(source, distance)

ravel(*args, **kwargs)

Return an instance with the array collapsed into one dimension.

Parameters are as for ravel(). Note that it is not always possible to unravel an array without copying the data. If you want an error to be raise if the data is copied, you should should assign shape (-1,) to the shape attribute.

reshape(*args, **kwargs)

Returns an instance containing the same data with a new shape.

Parameters are as for reshape(). Note that it is not always possible to change the shape of an array without copying the data (see reshape() documentation). If you want an error to be raise if the data is copied, you should assign the new shape to the shape attribute (note: this may not be implemented for all classes using NDArrayShapeMethods).

squeeze(*args, **kwargs)

Return an instance with single-dimensional shape entries removed.

Parameters are as for squeeze(). All internal data are views of the data of the original.

swapaxes(*args, **kwargs)

Return an instance with the given axes interchanged.

Parameters are as for swapaxes(): axis1, axis2. All internal data are views of the data of the original.

take(indices, axis=None, out=None, mode='raise')

Return a new instance formed from the elements at the given indices.

Parameters are as for take(), except that, obviously, no output array can be given.

transpose(*args, **kwargs)

Return an instance with the data transposed.

Parameters are as for transpose(). All internal data are views of the data of the original.