pcdsdevices.areadetector.plugins.StatsPlugin

class pcdsdevices.areadetector.plugins.StatsPlugin(*args, **kwargs)

Ophyd Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
configuration_names	ArrayAttributeSignal			config	Inherited from StatsPlugin
array_counter (ADComponent)	EpicsSignalWithRBV	ArrayCounter	[ArrayCounter r/w longout] Counter that increments by 1 each time an NDArray callback is processed	normal	Inherited from StatsPlugin
array_rate (ADComponent)	EpicsSignalRO	ArrayRate_RBV	[ArrayRate_RBV r/o calc] Rate (Hz) at which ArrayCounter is incrementing. Computed in database.	normal	Inherited from StatsPlugin
asyn_io (ADComponent)	EpicsSignal	AsynIO	[AsynIO N/A asyn] asyn record to control debugging (asynTrace)	normal	Inherited from StatsPlugin
nd_attributes_file (ADComponent)	EpicsSignal	NDAttributesFile	[NDAttributesFile r/w waveform] The name of an XML file defining the PVAttributes and paramAttributes to be added to each NDArray by this plugin. The format of the XML file is described in the documentation for asynNDArrayDriver::readNDAttributesFile().	normal	Inherited from StatsPlugin
pool_alloc_buffers (ADComponent)	EpicsSignalRO	PoolAllocBuffers	[PoolAllocBuffers r/o longin] The number of NDArrays this plugin has currently allocated.	normal	Inherited from StatsPlugin
pool_free_buffers (ADComponent)	EpicsSignalRO	PoolFreeBuffers	[PoolFreeBuffers r/o longin] The number of free NDArrays this plugin has in its NDArrayPool.	normal	Inherited from StatsPlugin
pool_max_buffers (ADComponent)	EpicsSignalRO	PoolMaxBuffers	[PoolMaxBuffers r/o longin] The maximum number of NDArrays this plugin is allowed to allocate.	normal	Inherited from StatsPlugin
pool_max_mem (ADComponent)	EpicsSignalRO	PoolMaxMem	[PoolMaxMem r/o ai] The maximum amount of NDArrayPool memory this plugin is allowed to allocate.	normal	Inherited from StatsPlugin
pool_used_buffers (ADComponent)	EpicsSignalRO	PoolUsedBuffers	[PoolUsedBuffers N/A calc] The number of used NDArrays this plugin has in its NDArrayPool. Calculated from PoolAllocBuffers and PoolFreeBuffers.	normal	Inherited from StatsPlugin
pool_used_mem (ADComponent)	EpicsSignalRO	PoolUsedMem	[PoolUsedMem r/o ai] The actual amount of NDArrayPool memory this plugin is currently using.	normal	Inherited from StatsPlugin
port_name (ADComponent)	EpicsSignalRO	PortName_RBV	[PortName_RBV r/o stringin] asyn port name	config	Inherited from StatsPlugin
asyn_pipeline_config	ArrayAttributeSignal			config	Inherited from StatsPlugin
width (ADComponent)	EpicsSignalRO	ArraySize0_RBV	[ArraySize0_RBV r/o longin] First dimension of NDArray callback data	normal	Inherited from StatsPlugin
height (ADComponent)	EpicsSignalRO	ArraySize1_RBV	[ArraySize1_RBV r/o longin] Second dimension of NDArray callback data	normal	Inherited from StatsPlugin
depth (ADComponent)	EpicsSignalRO	ArraySize2_RBV	[ArraySize2_RBV r/o longin] Third dimension of NDArray callback data	normal	Inherited from StatsPlugin
array_size (DDC)	ArraySize	(See below)		normal	Inherited from StatsPlugin
bayer_pattern (ADComponent)	EpicsSignalRO	BayerPattern_RBV	[BayerPattern_RBV r/o mbbi] BayerPattern of last NDArray callback data (NDBayerPattern_t).	normal	Inherited from StatsPlugin
blocking_callbacks (ADComponent)	EpicsSignalWithRBV	BlockingCallbacks	[BlockingCallbacks r/w bo] 0 = callbacks from the driver do not block; the NDArray data is put on a queue and the callback processes in its own thread. 1 = callbacks from the driver block; the callback processes in the driver callback thread.	config	Inherited from StatsPlugin
color_mode (ADComponent)	EpicsSignalRO	ColorMode_RBV	[ColorMode_RBV r/o mbbi] Color mode of last NDArray callback data (NDColorMode_t).	normal	Inherited from StatsPlugin
data_type (ADComponent)	EpicsSignalRO	DataType_RBV	[DataType_RBV r/o mbbi] Data type of last NDArray callback data (NDDataType_t).	normal	Inherited from StatsPlugin
dim0_sa (ADComponent)	EpicsSignal	Dim0SA		normal	Inherited from StatsPlugin
dim1_sa (ADComponent)	EpicsSignal	Dim1SA		normal	Inherited from StatsPlugin
dim2_sa (ADComponent)	EpicsSignal	Dim2SA		normal	Inherited from StatsPlugin
dim_sa (DDC)	DimSa	(See below)		normal	Inherited from StatsPlugin
dimensions (ADComponent)	EpicsSignalRO	Dimensions_RBV	[Dimensions_RBV r/o waveform] Dimensions in last NDArray callback data	normal	Inherited from StatsPlugin
dropped_arrays (ADComponent)	EpicsSignalWithRBV	DroppedArrays	[DroppedArrays r/w longout] Counter that increments by 1 each time an NDArray callback occurs when NDPluginDriverBlockingCallbacks=0 and the plugin driver queue is full, so the callback cannot be processed.	normal	Inherited from StatsPlugin
enable (ADComponent)	EpicsSignalWithRBV	EnableCallbacks	[EnableCallbacks r/w bo] Enable (1) or disable (0) callbacks from the driver to this plugin. If callbacks are disabled then the plugin will normally be idle and consume no CPU resources.	config	Inherited from StatsPlugin
min_callback_time (ADComponent)	EpicsSignalWithRBV	MinCallbackTime	[MinCallbackTime r/w ao] The minimum time in seconds between calls to processCallbacks. Any callbacks occuring before this minimum time has elapsed will be ignored. 0 means no minimum time, i.e. process all callbacks.	normal	Inherited from StatsPlugin
nd_array_address (ADComponent)	EpicsSignalWithRBV	NDArrayAddress	[NDArrayAddress r/w longout] asyn port address for NDArray driver that will make callbacks to this plugin. This address can be changed at run time, connecting the plugin to a different address in the NDArray driver.	normal	Inherited from StatsPlugin
nd_array_port (ADComponent)	EpicsSignalWithRBV	NDArrayPort	[NDArrayPort r/w stringout] asyn port name for NDArray driver that will make callbacks to this plugin. This port can be changed at run time, connecting the plugin to a different NDArray driver.	config	Inherited from StatsPlugin
ndimensions (ADComponent)	EpicsSignalRO	NDimensions_RBV	[NDimensions_RBV r/o longin] Number of dimensions in last NDArray callback data	normal	Inherited from StatsPlugin
plugin_type (ADComponent)	EpicsSignalRO	PluginType_RBV	[PluginType_RBV r/o stringin] A string describing the plugin type.	config	Inherited from StatsPlugin
queue_free (ADComponent)	EpicsSignal	QueueFree	[QueueFree r/o longin] The number of free queue elements.	normal	Inherited from StatsPlugin
queue_free_low (ADComponent)	EpicsSignal	QueueFreeLow		normal	Inherited from StatsPlugin
queue_size (ADComponent)	EpicsSignal	QueueSize	[QueueSize r/o longin] The total queue size for callbacks when BlockingCallbacks=0.	normal	Inherited from StatsPlugin
queue_use (ADComponent)	EpicsSignal	QueueUse	[QueueUse r/o calc] The number of used queue elements.	normal	Inherited from StatsPlugin
queue_use_high (ADComponent)	EpicsSignal	QueueUseHIGH		normal	Inherited from StatsPlugin
queue_use_hihi (ADComponent)	EpicsSignal	QueueUseHIHI		normal	Inherited from StatsPlugin
time_stamp (ADComponent)	EpicsSignalRO	TimeStamp_RBV	[TimeStamp_RBV r/o ai] Time stamp number of last NDArray callback data	normal	Inherited from StatsPlugin
unique_id (ADComponent)	EpicsSignalRO	UniqueId_RBV	[UniqueId_RBV r/o longin] Unique ID number of last NDArray callback data	normal	Inherited from StatsPlugin
bgd_width (ADComponent)	EpicsSignalWithRBV	BgdWidth	[BgdWidth r/w longout] Width of the background in pixels to use when computing net counts. 0=no background subtraction, so the net counts is the same as the total counts.	config	Inherited from StatsPlugin
centroid_threshold (ADComponent)	EpicsSignalWithRBV	CentroidThreshold	[CentroidThreshold r/w ao] Threshold used when computing the centroid statistics. All array elements less than this value are set to 0 for computing the centroid statistics. It is important to set this value to ignore the “background” when computing the position and size of a “beam” image, for example.	config	Inherited from StatsPlugin
centroid (DDC)	Centroid	(See below)		normal	Inherited from StatsPlugin
compute_centroid (ADComponent)	EpicsSignalWithRBV	ComputeCentroid	[ComputeCentroid r/w bo] Flag to control whether to compute the centroid statistics (0=No, 1=Yes). The centroids are computed from the average row and column profiles above the centroid threshold. These calculations are also quite fast, since they just involve addition operations for each array element.	config	Inherited from StatsPlugin
compute_histogram (ADComponent)	EpicsSignalWithRBV	ComputeHistogram	[ComputeHistogram r/w bo] Flag to control whether to compute the histogram for this array (0=No, 1=Yes). Not computing the histogram reduces CPU load.	config	Inherited from StatsPlugin
compute_profiles (ADComponent)	EpicsSignalWithRBV	ComputeProfiles	[ComputeProfiles r/w bo] Flag to control whether to compute the profiles for this array (0=No, 1=Yes).	config	Inherited from StatsPlugin
compute_statistics (ADComponent)	EpicsSignalWithRBV	ComputeStatistics	[ComputeStatistics r/w bo] Flag to control whether to compute statistics for this array (0=No, 1=Yes). Not computing statistics reduces CPU load. Basic statistics computations are quite fast, since they involve mostly double precision addition, with 1 multiply to compute sigma, per array element.	config	Inherited from StatsPlugin
cursor (DDC)	Cursor	(See below)		normal	Inherited from StatsPlugin
hist_entropy (ADComponent)	EpicsSignalRO	HistEntropy_RBV	[HistEntropy_RBV r/o ai] Entropy of the image. This is a measure of the sharpness of the histogram, and is often a useful figure of merit for determining sharpness of focus, etc. It is defined as -SUM(BIN[i]*log(BIN[i]), where the sum is over the number of bins in the histogram and BIN[i] is the number of elements in bin i.	config	Inherited from StatsPlugin
hist_max (ADComponent)	EpicsSignalWithRBV	HistMax	[HistMax r/w ao] Maximum value for the histogram. All values greater than or equal to this will be in the last bin of the histogram.	config	Inherited from StatsPlugin
hist_min (ADComponent)	EpicsSignalWithRBV	HistMin	[HistMin r/w ao] Minimum value for the histogram. All values less than or equal to this will be in the first bin of the histogram.	config	Inherited from StatsPlugin
hist_size (ADComponent)	EpicsSignalWithRBV	HistSize	[HistSize r/w longout] Number of elements (bins) in the histogram	normal	Inherited from StatsPlugin
histogram (ADComponent)	EpicsSignalRO	Histogram_RBV	[Histogram_RBV r/o waveform] Histogram array, i.e. counts in each histogram bin.	normal	Inherited from StatsPlugin
max_size (DDC)	MaxSize	(See below)		normal	Inherited from StatsPlugin
max_value (ADComponent)	EpicsSignalRO	MaxValue_RBV	[MaxValue_RBV r/o ai] Maximum value in any element in the array	normal	Inherited from StatsPlugin
max_xy (DDC)	MaxXy	(See below)		normal	Inherited from StatsPlugin
mean_value (ADComponent)	EpicsSignalRO	MeanValue_RBV	[MeanValue_RBV r/o ai] Mean value in the array	normal	Inherited from StatsPlugin
min_value (ADComponent)	EpicsSignalRO	MinValue_RBV	[MinValue_RBV r/o ai] Minimum value in any element in the array	normal	Inherited from StatsPlugin
min_xy (DDC)	MinXy	(See below)		normal	Inherited from StatsPlugin
net (ADComponent)	EpicsSignalRO	Net_RBV	[Net_RBV r/o ai] Net (background subtracted) total of all elements in the array. The background is calculated by determining the average counts per array element in a border around the array of width NDPluginStatsBgdWidth. This average background counts per element is then subtracted from all elements inside the array. If NDPluginStatsBgdWidth is ≤ 0 then no background is computed. The net counts is available as an ai record. The net counts is also available as epicsInt32 values in an mca record via callbacks to the drvFastSweep driver. The mca record is very useful for on-the-fly data acquisition of the net counts in the detector or in an ROI.	normal	Inherited from StatsPlugin
profile_average (DDC)	ProfileAverage	(See below)		normal	Inherited from StatsPlugin
profile_centroid (DDC)	ProfileCentroid	(See below)		normal	Inherited from StatsPlugin
profile_cursor (DDC)	ProfileCursor	(See below)		normal	Inherited from StatsPlugin
profile_size (DDC)	ProfileSize	(See below)		normal	Inherited from StatsPlugin
profile_threshold (DDC)	ProfileThreshold	(See below)		normal	Inherited from StatsPlugin
set_xhopr (ADComponent)	EpicsSignal	SetXHOPR		normal	Inherited from StatsPlugin
set_yhopr (ADComponent)	EpicsSignal	SetYHOPR		normal	Inherited from StatsPlugin
sigma_xy (ADComponent)	EpicsSignalRO	SigmaXY_RBV	[SigmaXY_RBV r/o ai] This is the normalized value of sigmaXY, i.e. sigmaXY/(sigmaX * sigmaY). This is often called the correlation coefficient, r. It is zero if the X and Y profiles are not correlated, meaning that the distribution is not tilted with respect to the X and Y axes.	normal	Inherited from StatsPlugin
sigma_x (ADComponent)	EpicsSignalRO	SigmaX_RBV	[SigmaX_RBV r/o ai] Sigma X (width) of the distribution above the centroid threshold.	normal	Inherited from StatsPlugin
sigma_y (ADComponent)	EpicsSignalRO	SigmaY_RBV	[SigmaY_RBV r/o ai] Sigma Y (height) of the distribution above the centroid threshold.	normal	Inherited from StatsPlugin
sigma (ADComponent)	EpicsSignalRO	Sigma_RBV	[Sigma_RBV r/o ai] Sigma (standard deviation) of all elements in the array	normal	Inherited from StatsPlugin
ts_acquiring (ADComponent)	EpicsSignal	TSAcquiring	[TSAcquiring r/o bi] Indicates status of time-series data acquisition. Values are 0=Done and 1=Acquiring.	normal	Inherited from StatsPlugin
ts_centroid (DDC)	TsCentroid	(See below)		normal	Inherited from StatsPlugin
ts_control (ADComponent)	EpicsSignal	TSControl	[TSControl r/w mbbo] Controls time-series data collection. The enum choices are: Erase/Start: Clears all time-series arrays, sets TS_CURRENT_POINT=0, and starts time-series data collection. Start: Starts time-series data collection without clearing arrays or modifying TS_CURRENT_POINT. Used to restart collection after a Stop operation. Stop: Stops times-series data collection. Performs callbacks on all time-series waveform records. Read: Performs callbacks on all time-series waveform records, updating the values.	config	Inherited from StatsPlugin
ts_current_point (ADComponent)	EpicsSignal	TSCurrentPoint	[TSCurrentPoint r/o longin] The current time-series point. If TSCurrentPoint reaches TSNumPoints then time-series acquisition is automatically stopped, and callbacks are done on all time-series waveform records, updating the values. This means that even if TSRead has SCAN=Passive that the waveform records will update when time-series acquisition is complete.	normal	Inherited from StatsPlugin
ts_max_value (ADComponent)	EpicsSignal	TSMaxValue		normal	Inherited from StatsPlugin
ts_max (DDC)	TsMax	(See below)		normal	Inherited from StatsPlugin
ts_mean_value (ADComponent)	EpicsSignal	TSMeanValue		normal	Inherited from StatsPlugin
ts_min_value (ADComponent)	EpicsSignal	TSMinValue		normal	Inherited from StatsPlugin
ts_min (DDC)	TsMin	(See below)		normal	Inherited from StatsPlugin
ts_net (ADComponent)	EpicsSignal	TSNet		normal	Inherited from StatsPlugin
ts_num_points (ADComponent)	EpicsSignal	TSNumPoints	[TSNumPoints r/w longout] Controls the number of time-series points to collect. There is no maximum value, the time-series arrays in the plugin are freed and reallocated each time this value is changed. However, the size of the waveform records is fixed when the IOC is started, so NELM in those records must be large enough for the largest time-series needed.	config	Inherited from StatsPlugin
ts_read (ADComponent)	EpicsSignal	TSRead	[TSRead r/w longout] Sends the “Read” command to the TSControl record above. This record can be periodically processed to update the time-series waveform records. It is scan disabled if TSAcquiring=Done, so that updates are only performed when time-series acquisition is in progress.	normal	Inherited from StatsPlugin
ts_sigma (ADComponent)	EpicsSignal	TSSigma		normal	Inherited from StatsPlugin
ts_sigma_x (ADComponent)	EpicsSignal	TSSigmaX		normal	Inherited from StatsPlugin
ts_sigma_xy (ADComponent)	EpicsSignal	TSSigmaXY		normal	Inherited from StatsPlugin
ts_sigma_y (ADComponent)	EpicsSignal	TSSigmaY		normal	Inherited from StatsPlugin
ts_total (ADComponent)	EpicsSignal	TSTotal		normal	Inherited from StatsPlugin
total (ADComponent)	EpicsSignalRO	Total_RBV	[Total_RBV r/o ai] Sum (total) of all elements in the array. This is available as an ai record. The total counts are also available as epicsInt32 values in an mca record via callbacks to the drvFastSweep driver. The mca record is very useful for on-the-fly data acquisition of the total counts in the detector or in an ROI.	normal	Inherited from StatsPlugin

StatsPlugin.array_size (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
depth	EpicsSignalRO	ArraySize2_RBV		config	Inherited from StatsPlugin
height	EpicsSignalRO	ArraySize1_RBV		config	Inherited from StatsPlugin
width	EpicsSignalRO	ArraySize0_RBV		config	Inherited from StatsPlugin

StatsPlugin.dim_sa (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
dim0	EpicsSignal	Dim0SA		config
dim1	EpicsSignal	Dim1SA		config
dim2	EpicsSignal	Dim2SA		config

StatsPlugin.centroid (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	CentroidX_RBV		config
y	EpicsSignalRO	CentroidY_RBV		config

StatsPlugin.cursor (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalWithRBV	CursorX		config
y	EpicsSignalWithRBV	CursorY		config

StatsPlugin.max_size (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignal	MaxSizeX		config
y	EpicsSignal	MaxSizeY		config

StatsPlugin.max_xy (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	MaxX_RBV		config
y	EpicsSignalRO	MaxY_RBV		config

StatsPlugin.min_xy (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	MinX_RBV		config
y	EpicsSignalRO	MinY_RBV		config

StatsPlugin.profile_average (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	ProfileAverageX_RBV		config
y	EpicsSignalRO	ProfileAverageY_RBV		config

StatsPlugin.profile_centroid (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	ProfileCentroidX_RBV		config
y	EpicsSignalRO	ProfileCentroidY_RBV		config

StatsPlugin.profile_cursor (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	ProfileCursorX_RBV		config
y	EpicsSignalRO	ProfileCursorY_RBV		config

StatsPlugin.profile_size (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	ProfileSizeX_RBV		config
y	EpicsSignalRO	ProfileSizeY_RBV		config

StatsPlugin.profile_threshold (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignalRO	ProfileThresholdX_RBV		config
y	EpicsSignalRO	ProfileThresholdY_RBV		config

StatsPlugin.ts_centroid (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignal	TSCentroidX		config
y	EpicsSignal	TSCentroidY		config

StatsPlugin.ts_max (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignal	TSMaxX		config
y	EpicsSignal	TSMaxY		config

StatsPlugin.ts_min (DDC) Dynamic Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
x	EpicsSignal	TSMinX		config
y	EpicsSignal	TSMinY		config

Methods

configure(d: Dict[str, Any]) → Tuple[Dict[str, Any], Dict[str, Any]]

Configure the device for something during a run

This default implementation allows the user to change any of the configuration_attrs. Subclasses might override this to perform additional input validation, cleanup, etc.

Parameters:

d (dict) – The configuration dictionary. To specify the order that the changes should be made, use an OrderedDict.

Returns:

• (old, new) tuple of dictionaries

• Where old and new are pre- and post-configure configuration states.

describe() → OrderedDictType[str, Dict[str, Any]]

Provide schema and meta-data for read().

This keys in the OrderedDict this method returns must match the keys in the OrderedDict return by read().

This provides schema related information, (ex shape, dtype), the source (ex PV name), and if available, units, limits, precision etc.

Returns:

data_keys (OrderedDict) – The keys must be strings and the values must be dict-like with the event_model.event_descriptor.data_key schema.

disable_on_stage()

when the plugin is staged, ensure that it is disabled.

a convenience method for adding `('enable', 0) to stage_sigs

enable_on_stage()

when the plugin is staged, ensure that it is enabled.

a convenience method for adding (‘enable’, 1) to stage_sigs

ensure_blocking()

Ensure that if plugin is enabled after staging, callbacks block.

a convenience method for adding `('blocking_callbacks', 1) to stage_sigs

ensure_nonblocking()

Ensure that if plugin is enabled after staging, callbacks don’t block.

a convenience method for adding `('blocking_callbacks', 0) to stage_sigs

find_signal(text, use_re=False, case_sensitive=False, match_fcn=None, f=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Search through the signal docs on this detector for the string text

Parameters:

• text (str) – Text to find

• use_re (bool, optional) – Use regular expressions

• case_sensitive (bool, optional) – Case sensitive search

• match_fcn (callable, optional) – Function to call when matches are found Defaults to a function that prints matches to f

• f (file-like, optional) – File-like object that the default match function prints to (Defaults to sys.stdout)

get(**kwargs)

Get the value of all components in the device

Keyword arguments are passed onto each signal.get(). Components beginning with an underscore will not be included.

get_asyn_digraph()

Get the directed graph of the ASYN ports

Returns:

• G (networkx.DiGraph) – Directed graph of pipelines

• port_map (dict) – Mapping between port_name and ADBase objects

get_asyn_port_dictionary()

Return port name : component map

Returns:

port_map (dict) – Mapping between port_name and ADBase objects

get_plugin_by_asyn_port(port_name)

Get the plugin which has the given asyn port name

Parameters:

port_name (str) – The port name to search for

Returns:

ret (ADBase or None) – Either the requested plugin or None if not found

missing_plugins()

Find missing ports

read() → OrderedDictType[str, Dict[str, Any]]

Read data from the device.

This method is expected to be as instantaneous as possible, with any substantial acquisition time taken care of in trigger().

The OrderedDict returned by this method must have identical keys (in the same order) as the OrderedDict returned by describe().

By convention, the first key in the return is the ‘primary’ key and maybe used by heuristics in bluesky.

The values in the ordered dictionary must be dict (-likes) with the keys {'value', 'timestamp'}. The 'value' may have any type, the timestamp must be a float UNIX epoch timestamp in UTC.

Returns:

data (OrderedDict) – The keys must be strings and the values must be dict-like with the keys {'value', 'timestamp'}

read_configuration()

Dictionary mapping names to value dicts with keys: value, timestamp

To control which fields are included, change the Component kinds on the device, or modify the configuration_attrs list.

stop(*, success=False)

Stop the Device and all (instantiated) subdevices

summary()

trigger() → StatusBase

Trigger the device and return status object.

This method is responsible for implementing ‘trigger’ or ‘acquire’ functionality of this device.

If there is an appreciable time between triggering the device and it being able to be read (via the read() method) then this method is also responsible for arranging that the StatusBase object returned by this method is notified when the device is ready to be read.

If there is no delay between triggering and being readable, then this method must return a StatusBase object which is already completed.

Returns:

status (StatusBase) – StatusBase object which will be marked as complete when the device is ready to be read.

validate_asyn_ports()

Validate that all components of pipeline are known

Raises:

RuntimeError – If there any input ports to known plugins where the source is not known to ophyd

visualize_asyn_digraph(ax=None, *args, **kwargs)

This generates a figure showing the current asyn port layout.

This method generates a plot showing all of the currently enabled Areadetector plugin asyn ports and their relationships. The current ports and relationships are found using self.get_asyn_digraph.

Parameters:

• ax (matplotlib axes) – if None (default) then a new figure is created otherwise it is plotted on the specified axes.

• *args (networkx.draw_networkx args and kwargs.) – For the allowed args and kwargs see the networkx.draw_networkx documentation

• **kwargs (networkx.draw_networkx args and kwargs.) –

  For the allowed args and kwargs see the networkx.draw_networkx documentation

Attributes

ad_root

array_pixels

The total number of pixels, calculated from array_size.

configuration_attrs

connected

hints

kind

source_plugin

subscriptions: ClassVar[FrozenSet[str]] = frozenset({'acq_done'})