Method Plot

plotter/quartile.go:199–227

(c draw.Canvas, plt *plot.Plot)

type horizQuartPlot struct{ *QuartPlot }

func (b horizQuartPlot) Plot(c draw.Canvas, plt *plot.Plot) {
	trX, trY := plt.Transforms(&c)
	y := trY(b.Location)
	if !c.ContainsY(y) {
		return
	}
	y += b.Offset

	med := vg.Point{X: trX(b.Median), Y: y}
	q1 := trX(b.Quartile1)
	q3 := trX(b.Quartile3)
	aLow := trX(b.AdjLow)
	aHigh := trX(b.AdjHigh)

	c.StrokeLine2(b.WhiskerStyle, aHigh, y, q3, y)
	if c.ContainsX(med.X) {
		c.DrawGlyphNoClip(b.MedianStyle, med)
	}
	c.StrokeLine2(b.WhiskerStyle, aLow, y, q1, y)

	ostyle := b.MedianStyle
	ostyle.Radius = b.MedianStyle.Radius / 2
	for _, out := range b.Outside {
		x := trX(b.Value(out))
		if c.ContainsX(x) {
			c.DrawGlyphNoClip(ostyle, vg.Point{X: x, Y: y})
		}
	}
}

// DataRange returns the minimum and maximum x
// and y values, implementing the plot.DataRanger