The gtkdataboxmm C++ binding provides a C++ interface on top of the gtkdatabox C library.

GtkDatabox is a widget for live display of large amounts of fluctuating numerical data. Data presentation (e.g. on linear or logarithmic scales, as dots or lines, with markers/labels) as well as user interaction (e.g. measuring distances) is easy. (see https://sourceforge.net/projects/gtkdatabox/ )