func (sg *SvgGraphics) XAxis(xr chart.Range, ys, yms int, options chart.PlotOptions) { chart.GenericXAxis(sg, xr, ys, yms, options) }
func (ig *ImageGraphics) XAxis(xr chart.Range, ys, yms int, options chart.PlotOptions) { chart.GenericXAxis(ig, xr, ys, yms, options) }