// Plot implements the Plotter interface, drawing labels.
func (e *XErrorBars) Plot(da plot.DrawArea, p *plot.Plot) {
trX, trY := p.Transforms(&da)
for i, err := range e.XErrors {
y := trY(e.XYs[i].Y)
xlow := trX(e.XYs[i].X - math.Abs(err.Low))
xhigh := trX(e.XYs[i].X + math.Abs(err.High))
bar := da.ClipLinesX([]plot.Point{{xlow, y}, {xhigh, y}})
da.StrokeLines(e.LineStyle, bar...)
e.drawCap(&da, xlow, y)
e.drawCap(&da, xhigh, y)
}
}
func (b HorizBoxPlot) Plot(da plot.DrawArea, plt *plot.Plot) {
trX, trY := plt.Transforms(&da)
y := trY(b.Location)
if !da.ContainsY(y) {
return
}
med := trX(b.Median)
q1 := trX(b.Quartile1)
q3 := trX(b.Quartile3)
aLow := trX(b.AdjLow)
aHigh := trX(b.AdjHigh)
box := da.ClipLinesX([]plot.Point{
{q1, y - b.Width/2},
{q3, y - b.Width/2},
{q3, y + b.Width/2},
{q1, y + b.Width/2},
{q1, y - b.Width/2 - b.BoxStyle.Width/2},
})
da.StrokeLines(b.BoxStyle, box...)
medLine := da.ClipLinesX([]plot.Point{
{med, y - b.Width/2},
{med, y + b.Width/2},
})
da.StrokeLines(b.MedianStyle, medLine...)
cap := b.CapWidth / 2
whisks := da.ClipLinesX([]plot.Point{{q3, y}, {aHigh, y}},
[]plot.Point{{aHigh, y - cap}, {aHigh, y + cap}},
[]plot.Point{{q1, y}, {aLow, y}},
[]plot.Point{{aLow, y - cap}, {aLow, y + cap}})
da.StrokeLines(b.WhiskerStyle, whisks...)
for _, out := range b.Outside {
x := trX(b.Value(out))
da.DrawGlyph(b.GlyphStyle, plot.Point{x, y})
}
}