Area chart with a numerical x-axis rather than a categorical x-axis. Our particular application plots the physical boundaries of metallic engineering sample slugs post-impact. (We're studying shock stresses and strains.) We use Highcharts for all our other 2D plotting and it'd be great to preserve the look and feel for these types of plots.

Currently I have a workaround where I plot an invisible line of the correct dimensions to set up the plot and then draw in the boundaries of the slugs using the renderer methods. It works but it's a hack.