420 lines
6.9 KiB
Go
420 lines
6.9 KiB
Go
package main
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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charts "github.com/vicanso/go-charts"
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"github.com/wcharczuk/go-chart/v2/drawing"
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)
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func writeFile(buf []byte) error {
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tmpPath := "./tmp"
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err := os.MkdirAll(tmpPath, 0700)
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if err != nil {
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return err
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}
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file := filepath.Join(tmpPath, "painter.png")
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err = ioutil.WriteFile(file, buf, 0600)
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if err != nil {
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return err
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}
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return nil
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}
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func main() {
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p, err := charts.NewPainter(charts.PainterOptions{
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Width: 400,
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Height: 1200,
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Type: charts.ChartOutputPNG,
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})
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if err != nil {
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panic(err)
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}
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// 背景色
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p.SetBackground(p.Width(), p.Height(), drawing.ColorWhite)
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top := 0
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// 画线
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p.SetDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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StrokeWidth: 1,
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})
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p.LineStroke([]charts.Point{
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{
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X: 0,
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Y: 0,
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},
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{
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X: 100,
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Y: 10,
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},
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{
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X: 200,
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Y: 0,
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},
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{
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X: 300,
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Y: 10,
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},
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})
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// 圆滑曲线
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// top += 50
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// p.Child(charts.PainterPaddingOption(charts.Box{
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// Top: top,
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// })).SetDrawingStyle(charts.Style{
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// StrokeColor: drawing.ColorBlack,
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// FillColor: drawing.ColorBlack,
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// StrokeWidth: 1,
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// }).SmoothLineStroke([]charts.Point{
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// {
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// X: 0,
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// Y: 0,
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// },
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// {
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// X: 100,
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// Y: 10,
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// },
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// {
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// X: 200,
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// Y: 0,
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// },
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// {
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// X: 300,
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// Y: 10,
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// },
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// })
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// 标线
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top += 50
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p.Child(charts.PainterPaddingOption(charts.Box{
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Top: top,
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})).SetDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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StrokeWidth: 1,
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StrokeDashArray: []float64{
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4,
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2,
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},
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}).MarkLine(0, 0, p.Width())
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top += 60
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// Polygon
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p.Child(charts.PainterBoxOption(charts.Box{
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Top: top,
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})).SetDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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StrokeWidth: 1,
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}).Polygon(charts.Point{
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X: 100,
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Y: 0,
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}, 50, 6)
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// FillArea
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top += 60
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p.Child(charts.PainterPaddingOption(charts.Box{
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Top: top,
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})).SetDrawingStyle(charts.Style{
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FillColor: drawing.ColorBlack,
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}).FillArea([]charts.Point{
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{
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X: 0,
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Y: 0,
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},
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{
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X: 100,
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Y: 0,
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},
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{
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X: 150,
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Y: 40,
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},
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{
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X: 80,
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Y: 30,
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},
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{
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X: 0,
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Y: 0,
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},
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})
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// 坐标轴的点
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top += 50
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: 20,
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}),
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).SetDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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StrokeWidth: 1,
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}).Ticks(charts.TicksOption{
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Count: 7,
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Length: 5,
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})
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// 坐标轴的点，每2格显示一个
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top += 20
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: 20,
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}),
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).SetDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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StrokeWidth: 1,
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}).Ticks(charts.TicksOption{
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Unit: 2,
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Count: 7,
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Length: 5,
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})
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// 坐标轴的点，纵向
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top += 20
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: top + 100,
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}),
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).SetDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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StrokeWidth: 1,
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}).Ticks(charts.TicksOption{
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Orient: charts.OrientVertical,
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Count: 7,
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Length: 5,
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})
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// 横向展示文本
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top += 120
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: 20,
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}),
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).OverrideTextStyle(charts.Style{
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FontColor: drawing.ColorBlack,
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FontSize: 10,
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}).MultiText(charts.MultiTextOption{
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TextList: []string{
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"Mon",
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"Tue",
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"Wed",
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"Thu",
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"Fri",
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"Sat",
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"Sun",
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},
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})
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// 横向显示文本，靠左
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top += 20
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: 20,
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}),
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).OverrideTextStyle(charts.Style{
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FontColor: drawing.ColorBlack,
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FontSize: 10,
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}).MultiText(charts.MultiTextOption{
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Position: charts.PositionLeft,
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TextList: []string{
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"Mon",
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"Tue",
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"Wed",
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"Thu",
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"Fri",
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"Sat",
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"Sun",
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},
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})
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// 纵向显示文本
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top += 20
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: 50,
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Bottom: top + 150,
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}),
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).OverrideTextStyle(charts.Style{
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FontColor: drawing.ColorBlack,
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FontSize: 10,
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}).MultiText(charts.MultiTextOption{
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Orient: charts.OrientVertical,
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Align: charts.AlignRight,
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TextList: []string{
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"Mon",
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"Tue",
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"Wed",
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"Thu",
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"Fri",
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"Sat",
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"Sun",
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},
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})
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// 纵向 文本居中
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 50,
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Right: 100,
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Bottom: top + 150,
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}),
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).OverrideTextStyle(charts.Style{
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FontColor: drawing.ColorBlack,
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FontSize: 10,
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}).MultiText(charts.MultiTextOption{
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Orient: charts.OrientVertical,
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Align: charts.AlignCenter,
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TextList: []string{
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"Mon",
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"Tue",
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"Wed",
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"Thu",
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"Fri",
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"Sat",
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"Sun",
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},
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})
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// 纵向 文本置顶
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 100,
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Right: 150,
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Bottom: top + 150,
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}),
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).OverrideTextStyle(charts.Style{
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FontColor: drawing.ColorBlack,
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FontSize: 10,
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}).MultiText(charts.MultiTextOption{
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Orient: charts.OrientVertical,
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Position: charts.PositionTop,
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Align: charts.AlignCenter,
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TextList: []string{
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"Mon",
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"Tue",
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"Wed",
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"Thu",
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"Fri",
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"Sat",
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"Sun",
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},
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})
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// grid
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top += 150
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: top + 100,
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}),
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).OverrideTextStyle(charts.Style{
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FontColor: drawing.ColorBlack,
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FontSize: 10,
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}).Grid(charts.GridOption{
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Column: 8,
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IgnoreColumnLines: []int{0, 8},
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Row: 8,
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IgnoreRowLines: []int{0, 8},
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})
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// dots
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top += 100
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: p.Width() - 1,
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Bottom: top + 20,
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}),
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).OverrideDrawingStyle(charts.Style{
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FillColor: drawing.ColorWhite,
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StrokeColor: drawing.ColorBlack,
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StrokeWidth: 1,
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}).Dots([]charts.Point{
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{
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X: 0,
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Y: 0,
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},
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{
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X: 50,
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Y: 0,
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},
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{
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X: 100,
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Y: 10,
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},
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})
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// rect
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top += 30
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 1,
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Right: 200,
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Bottom: top + 50,
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}),
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).OverrideDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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}).Rect(charts.Box{
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Left: 10,
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Top: 0,
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Right: 110,
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Bottom: 20,
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})
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// legend line dot
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p.Child(
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charts.PainterBoxOption(charts.Box{
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Top: top,
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Left: 200,
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Right: p.Width() - 1,
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Bottom: top + 50,
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}),
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).OverrideDrawingStyle(charts.Style{
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StrokeColor: drawing.ColorBlack,
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FillColor: drawing.ColorBlack,
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}).LegendLineDot(charts.Box{
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Left: 10,
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Top: 0,
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Right: 50,
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Bottom: 20,
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})
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buf, err := p.Bytes()
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if err != nil {
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panic(err)
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}
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err = writeFile(buf)
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if err != nil {
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panic(err)
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}
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}
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