This is the corresponding GitHub issue: https://github.com/highslide-software/highcharts.com/issues/1059Rick Deckard commented
is there any news on that? I think this should be configurable:
option1: stack positive and negative values together
option2: stack positive and negative values seperately, respecively above and below the xAxis
New experimantal implementation for Highcharts 4.1 is available at http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/studies/alignthresholds/.
This implementation looks a the threshold on the primary axis (the one first defined), and aligns the threshold of any following axis to that of the primary axis.Rick Deckard commented
This would be particularly useful for Input/output (e.g. network throughput) graphs, where input is on a normal yaxis, and output on a /reversed/ yaxis, but with the origin in the middleRick Deckard supported this idea ·