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Add stacked bar chart value labels (#60) and a horizontal stacked bar…
… chart (#39) (#114) * Add stacked bar chart value labels (#60) * Add horizontal render option to stacked bar chart (#39) * Pulling 100% inside the canvasBox to remain visible. * Use correct margins for YAxis.TextHorizontalAlign: chart.TextHorizontalAlignRight * Fixed Show to Hidden due to 5f42a58
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,222 @@ | ||
| package main | ||
|
|
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| import ( | ||
| "os" | ||
|
|
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| "github.com/wcharczuk/go-chart" | ||
| "github.com/wcharczuk/go-chart/drawing" | ||
| ) | ||
|
|
||
| func main() { | ||
| chart.DefaultBackgroundColor = chart.ColorTransparent | ||
| chart.DefaultCanvasColor = chart.ColorTransparent | ||
|
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| barWidth := 80 | ||
|
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| var ( | ||
| colorWhite = drawing.Color{R: 241, G: 241, B: 241, A: 255} | ||
| colorMariner = drawing.Color{R: 60, G: 100, B: 148, A: 255} | ||
| colorLightSteelBlue = drawing.Color{R: 182, G: 195, B: 220, A: 255} | ||
| colorPoloBlue = drawing.Color{R: 126, G: 155, B: 200, A: 255} | ||
| colorSteelBlue = drawing.Color{R: 73, G: 120, B: 177, A: 255} | ||
| ) | ||
|
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| stackedBarChart := chart.StackedBarChart{ | ||
| Title: "Quarterly Sales", | ||
| TitleStyle: chart.StyleShow(), | ||
| Background: chart.Style{ | ||
| Padding: chart.Box{ | ||
| Top: 75, | ||
| }, | ||
| }, | ||
| Width: 800, | ||
| Height: 600, | ||
| XAxis: chart.StyleShow(), | ||
| YAxis: chart.StyleShow(), | ||
| BarSpacing: 40, | ||
| IsHorizontal: true, | ||
| Bars: []chart.StackedBar{ | ||
| { | ||
| Name: "Q1", | ||
| Width: barWidth, | ||
| Values: []chart.Value{ | ||
| { | ||
| Label: "32K", | ||
| Value: 32, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorMariner, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "46K", | ||
| Value: 46, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorLightSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "48K", | ||
| Value: 48, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorPoloBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "42K", | ||
| Value: 42, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: "Q2", | ||
| Width: barWidth, | ||
| Values: []chart.Value{ | ||
| { | ||
| Label: "45K", | ||
| Value: 45, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorMariner, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "60K", | ||
| Value: 60, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorLightSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "62K", | ||
| Value: 62, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorPoloBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "53K", | ||
| Value: 53, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: "Q3", | ||
| Width: barWidth, | ||
| Values: []chart.Value{ | ||
| { | ||
| Label: "54K", | ||
| Value: 54, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorMariner, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "58K", | ||
| Value: 58, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorLightSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "55K", | ||
| Value: 55, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorPoloBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "47K", | ||
| Value: 47, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: "Q4", | ||
| Width: barWidth, | ||
| Values: []chart.Value{ | ||
| { | ||
| Label: "46K", | ||
| Value: 46, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorMariner, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "70K", | ||
| Value: 70, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorLightSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "74K", | ||
| Value: 74, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorPoloBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| { | ||
| Label: "60K", | ||
| Value: 60, | ||
| Style: chart.Style{ | ||
| StrokeWidth: .01, | ||
| FillColor: colorSteelBlue, | ||
| FontColor: colorWhite, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
|
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| pngFile, err := os.Create("output.png") | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
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| if err := stackedBarChart.Render(chart.PNG, pngFile); err != nil { | ||
| panic(err) | ||
| } | ||
|
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| if err := pngFile.Close(); err != nil { | ||
| panic(err) | ||
| } | ||
| } |
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