netmapr is a simple SDL-based network diagram
program that aims to be quick and easy to use
without a huge list of library requirements. It
supports NetViz-style "drilldown" into nested
diagrams.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.