0558d6eb30
There is now a way to allow gaps in charts due to missing measurements. A style setting (StrokeMaxSpanGap) determines whether a gap is stroked or not. An example is included in examples/custom_styles.
39 lines
978 B
Go
39 lines
978 B
Go
package main
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//go:generate go run main.go
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import (
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"os"
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"github.com/wcharczuk/go-chart/v2"
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"github.com/wcharczuk/go-chart/v2/drawing"
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)
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func main() {
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/*
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In this example we set some custom colors for the series and the chart background and canvas.
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*/
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graph := chart.Chart{
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Background: chart.Style{
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FillColor: drawing.ColorBlue,
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},
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Canvas: chart.Style{
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FillColor: drawing.ColorFromHex("efefef"),
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},
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Series: []chart.Series{
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chart.ContinuousSeries{
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Style: chart.Style{
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StrokeColor: drawing.ColorRed, // will supercede defaults
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FillColor: drawing.ColorRed.WithAlpha(64), // will supercede defaults
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StrokeMaxSpanGap: 2, // do not span gaps more than 2.0 wide
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},
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XValues: []float64{1.0, 2.0, 3.0, 4.0, 5.0, 8.0, 10.0},
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YValues: []float64{1.0, 2.0, 3.0, 4.0, 5.0, 8.0, 10.0},
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},
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},
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}
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f, _ := os.Create("output.png")
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defer f.Close()
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graph.Render(chart.PNG, f)
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}
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