javascript - d3 - rescaling y axis after plot is already done? -

(how) can rescale whole plot?

i using own fork of mbostock's "multi-line voronoi", , encountering dataset in makes sense rescale y axis. showing less of "y.domain".

interactively, perhaps +/- buttons. have +/- buttons ready lol - , have been able rescale y-axis itself. not yet plotted timeseries lines.

do have delete lines, voronoi areas, etc. , redraw whole thing?

or there cool d3 command rescale whole diagram?

thanks!