...Useful in dynamic web content systems and other unattended uses. Command line, batch mode. For full details see http://ploticus.sourceforge.net
Dec 2016: A new compact python API called SVGdatashapes supercedes ploticus; For details please see http://svgdatashapes.com
Package for high-quality dynamic PDF documents/charts in real-time & high volumes from any data source. EPS and bitmap formats also supported. Ideal for automated reporting needs. See http://www.reportlab.org/downloads.html.
Geomatrix, collection of C/C++ libraries to be used for symbolic description of n-dimensional geometric models. Operates internally with a representation that constructs complex objects based on primitives, allowing loss-less modifcation of models.