// Plot draws the QuartPlot on Canvas c and Plot plt. func (b *QuartPlot) Plot(c draw.Canvas, plt *plot.Plot) { if b.Horizontal { b := &horizQuartPlot{b} b.Plot(c, plt) return } trX, trY := plt.Transforms(&c) x := trX(b.Location) if !c.ContainsX(x) { return } x += b.Offset med := draw.Point{X: x, Y: trY(b.Median)} q1 := trY(b.Quartile1) q3 := trY(b.Quartile3) aLow := trY(b.AdjLow) aHigh := trY(b.AdjHigh) c.StrokeLine2(b.WhiskerStyle, x, aHigh, x, q3) if c.ContainsY(med.Y) { c.DrawGlyphNoClip(b.MedianStyle, med) } c.StrokeLine2(b.WhiskerStyle, x, aLow, x, q1) ostyle := b.MedianStyle ostyle.Radius = b.MedianStyle.Radius / 2 for _, out := range b.Outside { y := trY(b.Value(out)) if c.ContainsY(y) { c.DrawGlyphNoClip(ostyle, draw.Point{X: x, Y: y}) } } }
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 := draw.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, draw.Point{X: x, Y: y}) } } }
// Plot draws the BoxPlot on Canvas c and Plot plt. func (b *BoxPlot) Plot(c draw.Canvas, plt *plot.Plot) { if b.Horizontal { b := &horizBoxPlot{b} b.Plot(c, plt) return } trX, trY := plt.Transforms(&c) x := trX(b.Location) if !c.ContainsX(x) { return } x += b.Offset med := trY(b.Median) q1 := trY(b.Quartile1) q3 := trY(b.Quartile3) aLow := trY(b.AdjLow) aHigh := trY(b.AdjHigh) box := c.ClipLinesY([]draw.Point{ {x - b.Width/2, q1}, {x - b.Width/2, q3}, {x + b.Width/2, q3}, {x + b.Width/2, q1}, {x - b.Width/2 - b.BoxStyle.Width/2, q1}, }) c.StrokeLines(b.BoxStyle, box...) medLine := c.ClipLinesY([]draw.Point{ {x - b.Width/2, med}, {x + b.Width/2, med}, }) c.StrokeLines(b.MedianStyle, medLine...) cap := b.CapWidth / 2 whisks := c.ClipLinesY([]draw.Point{{x, q3}, {x, aHigh}}, []draw.Point{{x - cap, aHigh}, {x + cap, aHigh}}, []draw.Point{{x, q1}, {x, aLow}}, []draw.Point{{x - cap, aLow}, {x + cap, aLow}}) c.StrokeLines(b.WhiskerStyle, whisks...) for _, out := range b.Outside { y := trY(b.Value(out)) if c.ContainsY(y) { c.DrawGlyphNoClip(b.GlyphStyle, draw.Point{X: x, Y: y}) } } }
func (b horizBoxPlot) 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 := trX(b.Median) q1 := trX(b.Quartile1) q3 := trX(b.Quartile3) aLow := trX(b.AdjLow) aHigh := trX(b.AdjHigh) box := c.ClipLinesX([]draw.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}, }) c.StrokeLines(b.BoxStyle, box...) medLine := c.ClipLinesX([]draw.Point{ {med, y - b.Width/2}, {med, y + b.Width/2}, }) c.StrokeLines(b.MedianStyle, medLine...) cap := b.CapWidth / 2 whisks := c.ClipLinesX([]draw.Point{{q3, y}, {aHigh, y}}, []draw.Point{{aHigh, y - cap}, {aHigh, y + cap}}, []draw.Point{{q1, y}, {aLow, y}}, []draw.Point{{aLow, y - cap}, {aLow, y + cap}}) c.StrokeLines(b.WhiskerStyle, whisks...) for _, out := range b.Outside { x := trX(b.Value(out)) if c.ContainsX(x) { c.DrawGlyphNoClip(b.GlyphStyle, draw.Point{X: x, Y: y}) } } }