That's literally true, but in practice D3 makes for (and is intended as) an effective Protovis replacement. The set of primitive marks in Protovis is close to t

That's literally true, but in practice D3 makes for (and is intended as) an effective Protovis replacement. The set of primitive marks in Protovis is close to that of SVG, in any case. These libraries' primary author (Mike Bostok) views D3 as the successor to protovis: https://groups.google.com/d/msg/d3-js/UAEmdL4XArw/CfB4S-60u9QJ https://groups.google.com/d/msg/d3-js/UAEmdL4XArw/CfB4S-60u9... In particular: "I would recommend switching to D3. I have no current plans to release a new Protovis version."