Plotting

Caution

The plotter still need some work, feed-back are more than welcome (January 2024).

Import data

It is currently possible to plot data from previous experiments or any supported data type using the Open button.

Device connection

It is also possible to get and plot data from a device variable with an automatic plot refresh option.

To do this, you need to provide a device variable, e.g. mydummy.array_1D to create a link between the plotter and the array_1D variable of the mydummy device (based on the dummy driver).

Once the variable is linked, use the Get data button to call the variable that returns the array to be plotted (will execute the mydummy.array_1D() command).

To automatically update the plot, check the Auto get data option.

Plugin tree

The Plugin tree can be used to connect any device to the plotter, either by dragging a device from the Control panel and dropping it the plugin tree, either using the configuration file plotter_config.ini to link a plugin to a device defined in device_config.ini.

[plugin]
<PLUGIN_NAME> = <DEVICE_NAME>

A plugin do not share the same instance as the original device in the controlcenter, meaning that variables of a device will not affect variables of a plugin and vis-versa. Because a new instance is created for each plugin, you can add as many plugin from the same device as you want.

If a device uses the the argument gui in its __init__ method, it will be able to access the plotter instance to get its data ot to modify the plot itself.

If a plugin has a method called refresh, the plotter will call it with the argument data containing the plot data everytime the figure is updated, allowing for each plugin to get the lastest available data and do operations on it.

The plugin plotter can be added to the Plotter, allowing to do basic analyzes on the plotted data. Among them, getting the min, max values, but also computing the bandwidth around a local extremum. Note that this plugin can be used as a device to process data in the control panel or directly in a scan recipe.