27 lines
638 B
Go
27 lines
638 B
Go
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package chart
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// Annotation is a label on the chart.
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type Annotation struct {
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X, Y float64
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Label string
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}
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// AnnotationSeries is a series of labels on the chart.
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type AnnotationSeries struct {
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Name string
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Style Style
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YAxis YAxisType
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Annotations []Annotation
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}
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// Render draws the series.
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func (as AnnotationSeries) Render(r Renderer, canvasBox Box, xrange, yrange Range) {
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if as.Style.Show {
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for _, a := range as.Annotations {
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lx := xrange.Translate(a.X) + canvasBox.Left
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ly := yrange.Translate(a.Y) + canvasBox.Top
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DrawAnnotation(r, canvasBox, xrange, yrange, as.Style, lx, ly, a.Label)
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}
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}
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}
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