SVG_plot
Plot data in SVG format using C++ library
...but are tiny, (compared for a Microsoft Excel plot, for example) and are easily compressible, making them suitable for real-time transmission and update.
The SVG_plot project was originally written by Jake Voytko in 2007 as a Boost-sponsored Google Summer of Code project in 2007. It has been maintained and enhanced since then in Boost Sandbox, but is judged unsuitable for a Boost Library, so now being made more widely available here.
Version 2 adds representation of uncertainty estimates as numbers and zones.