Quickplot is a fast, interactive 2D plotter with infinite zooming, grab and slide, value picking, pipe input, and unlimited plots displayed. It is meant for looking at your data quickly and, less importantly, making static pictures of your data.
SigBrowser is a GTK+ and OpenGL application that
allows easy browsing of large signals. It can
attach the result of a cluster analysis to the
signal, allowing the user to display the signal at
the firing points of the clusters.