More control over hoverformat when supplying ticktext/tickvals

[cpsievert]

As I mention in plotly/plotly.R#480, for our ggplot2 converter, a huge number of issues are resolved by using linear axes and supplying ticktext/tickvals for all data types. Here's a mini example of how I implement date/datetime axes -- http://codepen.io/cpsievert/pen/mPVGEg

It'd be awesome if I had more control over the hoverformat. Would it be easy/possible to add the ability to convert types just for hoverformatting purposes? Maybe this could be a new property, say layout.axisid.hoverType = "-" | "linear" | "log" | "date" | "category"?

[etpinard]

Why not use hoverinfo in the traces?

I guess, that would imply setting a custom hoverinfo for all traces on a given axis.

[cpsievert]

Yea, I'll probably end up using hovermode="text" and creating custom text for each trace. Not ideal since I have to send more data, and lose the axis hovertext, but I can make it work.

[etpinard]

We will be resolved using a templating mini-language in trace text fields.