RDV is a visualization environment for scientific and engineering data. Built on top of the RBNB dynamic data server, it supports local and remote data sources and can visualize numeric, video, image, and audio data in a number of different ways.
Strip Charts for GtkPlot provides a set of GTK widgets for creating
strip plots of numeric data. Horizontal 'strips' of data are
ganged; supports
multiple color-changing limit (alarm) lines,
multiple scrollable cursors (with callbacks).
CAVOR is an engine for building apps that involve both graphic and text/numeric data. Primarily GIS is the initial focus, but consider also CAD, CASE, project management (eg PERT charts), and others. Built-in scripting, C API, also supports Tcl and Java.