MapD3 is a D3v4 charts library developed for MapD Immerse. It is in active development, currently at 0.7.0. We will accept PRs and bug reports once we reach 1.0.0. The main component is mapd3.chart, which is a wrapper for a suite of sub-components, like axis, tooltip, marks, labels, etc. The chart type is nothing more than a configuration option (currently line, area, stacked area, bar, stacked bar).