View

class joulescope.view.View(stream_buffer, calibration)

property calibration

The device calibration.

close()

Close the view and stop the thread.

property limits

Get the (x_min, x_max) limits for the view.

open()

Open the view and run the thread.

ping(*args, **kwargs)

Ping the thread.

Parameters

• args – The positional arguments.

• kwargs – The keyword arguments.

Returns

(args, kwargs) after passing through the thread.

samples_get(start=None, stop=None, units=None, fields=None)

Get exact samples over a range.

Parameters

• start – The starting time.

• stop – The ending time.

• units – The units for start and stop. ‘seconds’ or None is in floating point seconds relative to the view. ‘samples’ is in stream buffer sample indicies.

• fields – The fields to get. None (default) gets the fundamental fields available for this view instance, which may vary depending upon the backend.

property sampling_frequency

The output sampling frequency.

start(stream_buffer: joulescope.stream_buffer.StreamBuffer)

Start streaming.

statistics_get(start=None, stop=None, units=None, callback=None)

Get statistics over a range.

Parameters

• start – The starting time.

• stop – The ending time.

• units – The units for start and stop. ‘seconds’ or None is in floating point seconds relative to the view. ‘samples’ is in stream buffer sample indices.

• callback – The optional callable. When provided, this method will not block and the callable will be called with the statistics data structure from the view thread.

Returns

The statistics data structure or None if callback is provided.

Note: this same format is used by the Driver.statistics_callback_register(). See the statistics documentation for details on the data format.

stop()

Stop streaming.