28 lines
647 B
Go
28 lines
647 B
Go
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package chart
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import "github.com/wcharczuk/go-chart/drawing"
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// XAxis represents the horizontal axis.
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type XAxis struct {
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axis
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}
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// Render renders the axis
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func (xa XAxis) Render(r Renderer, canvasBox Box, ra Range) {
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tickFontSize := xa.Style.GetFontSize(DefaultFontSize)
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tickHeight := drawing.PointsToPixels(r.GetDPI(), tickFontSize)
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ty := canvasBox.Bottom + DefaultXAxisMargin + int(tickHeight)
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r.SetFontColor(xa.Style.GetFontColor(DefaultAxisColor))
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r.SetFontSize(tickFontSize)
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ticks := xa.getTicks(ra)
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for _, t := range ticks {
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v := t.Value
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x := ra.Translate(v)
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tx := canvasBox.Left + int(x)
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r.Text(t.Label, tx, ty)
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}
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}
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