navigate.model.devices.zoom.base.ZoomBase

class navigate.model.devices.zoom.base.ZoomBase(microscope_name, device_controller, configuration)

Bases: object

ZoomBase parent class.

__init__(microscope_name, device_controller, configuration)

Initialize the parent zoom class.

Parameters:

• microscope_name (str) – Name of microscope in configuration

• device_controller (object) – Hardware device to connect to

• configuration (multiprocesing.managers.DictProxy) – Global configuration of the microscope

Methods

__init__(microscope_name, device_controller, ...)	Initialize the parent zoom class.
build_stage_dict()	Construct a dictionary of stage offsets in between different zoom values.
move([position, wait_until_done])	Move the Zoom Servo
read_position()	Read the position of the Zoom Servo
set_zoom(zoom[, wait_until_done])	Change the microscope zoom.

Attributes

configuration	Configuration dictionary for the device.
zoomdict	Zoom dictionary
zoomvalue	the desired zoom setting

build_stage_dict()

Construct a dictionary of stage offsets in between different zoom values.

This assumes self.configuration[“stage_positions”] is a dictionary of ideal focus positions for the same object taken in the same solvent at each magnification. e.g.,

stage_positions:

BABB:

f:

0.63x: 0 1x: 70775 2x: 72455 3x: 72710 4x: 72795 5x: 72850 6x: 72880

The resulting dictionary is keyed first on solvent (refractive index), followed by the stage axis to offset, followed by the current magnification and then the target magnification.

move(position=0, wait_until_done=False)

Move the Zoom Servo

Parameters:

• position (int) – Location to move to.

• wait_until_done (bool) – Delay parameter

read_position()

Read the position of the Zoom Servo

Returns:

cur_position – Current position of Zoom

Return type:

int

set_zoom(zoom, wait_until_done=False)

Change the microscope zoom.

Confirms tha the zoom position is available in the zoomdict

Parameters:

• zoom (dict) – Zoom dictionary

• wait_until_done (bool) – Delay parameter.

• exists (Changes zoom after checking that the commanded value) –

configuration

Configuration dictionary for the device.

Type:

dict

zoomdict

Zoom dictionary

Type:

dict

zoomvalue

the desired zoom setting

Type:

float