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 # grum
 
 <img src="https://gitlab.psi.ch/augustin_s/grum/-/wikis/uploads/1a259a1d74e7b79e0230e7bbad3b1284/screenshot2.png" width="50%" />
+
+## Overview
+
+grum is a plotting GUI (using [pyqt5](https://www.riverbankcomputing.com/software/pyqt/)/[pyqtgraph](https://www.pyqtgraph.org/)) with an embedded RPC server (using [xmlrpc](https://docs.python.org/3/library/xmlrpc.html)).
+
+In the GUI, a list/history can be used to open individual or overlay several plots.
+
+Via the RPC server, new plots can be created and new data appended to existing plots.
+
+## GUI
+
+- Selecting items in the list allows the usual shortcuts (ctrl-/shift-click, `ctrl+a`, etc.).
+- The selected items can be plotted using `ctrl+p`, with more options in the right-click menu.
+- The list of plots is searchable via the bottom left search box or by pressing `ctrl+f`.
+
+## API
+
+### User functions
+
+- `new_plot(name, cfg)`
+
+Creates a new plot named `name` in the grum list. The configuration dict `cfg` is used as arguments for the constructor of [`PlotDescription`](https://gitlab.psi.ch/augustin_s/grum/-/blob/master/grum/plotdesc.py#L4).
+
+- `append_data(name, point)`
+
+Append data point to the plot named `name`. The new `point` is forwarded to [`PlotDescription.append()`](https://gitlab.psi.ch/augustin_s/grum/-/blob/master/grum/plotdesc.py#L18).
+
+### Utility functions
+
+- `utils.ping()`
+- `utils.help()`
+- `utils.info()`