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feat: support bar chart render

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This commit is contained in:
vicanso 2022-06-14 23:07:11 +08:00
parent 8a5990fe8f
commit b69728dd12
11 changed files with 408 additions and 50 deletions
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127
examples/bar_chart/main.go Normal file
View file

@ -0,0 +1,127 @@
package main
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/vicanso/go-charts"
)
func writeFile(buf []byte) error {
tmpPath := "./tmp"
err := os.MkdirAll(tmpPath, 0700)
if err != nil {
return err
}
file := filepath.Join(tmpPath, "bar-chart.png")
err = ioutil.WriteFile(file, buf, 0600)
if err != nil {
return err
}
return nil
}
func main() {
p, err := charts.NewPainter(charts.PainterOptions{
Width: 800,
Height: 600,
Type: charts.ChartOutputPNG,
})
if err != nil {
panic(err)
}
_, err = charts.NewBarChart(p, charts.BarChartOption{
Title: charts.TitleOption{
Text: "Rainfall vs Evaporation",
Subtext: "Fake Data",
},
Padding: charts.Box{
Top: 20,
Right: 20,
Bottom: 20,
Left: 20,
},
XAxis: charts.NewXAxisOption([]string{
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
}),
Legend: charts.NewLegendOption([]string{
"Rainfall",
"Evaporation",
}, charts.PositionRight),
SeriesList: []charts.Series{
{
Type: charts.ChartTypeBar,
Data: charts.NewSeriesDataFromValues([]float64{
2.0,
4.9,
7.0,
23.2,
25.6,
76.7,
135.6,
162.2,
32.6,
20.0,
6.4,
3.3,
}),
MarkPoint: charts.NewMarkPoint(
charts.SeriesMarkDataTypeMax,
charts.SeriesMarkDataTypeMin,
),
MarkLine: charts.NewMarkLine(
charts.SeriesMarkDataTypeAverage,
),
},
{
Type: charts.ChartTypeBar,
Data: charts.NewSeriesDataFromValues([]float64{
2.6,
5.9,
9.0,
26.4,
28.7,
70.7,
175.6,
182.2,
48.7,
18.8,
6.0,
2.3,
}),
MarkPoint: charts.NewMarkPoint(
charts.SeriesMarkDataTypeMax,
charts.SeriesMarkDataTypeMin,
),
MarkLine: charts.NewMarkLine(
charts.SeriesMarkDataTypeAverage,
),
},
},
}).Render()
if err != nil {
panic(err)
}
buf, err := p.Bytes()
if err != nil {
panic(err)
}
err = writeFile(buf)
if err != nil {
panic(err)
}
}

4
examples/line_chart/main.go
View file

@ -39,10 +39,10 @@ func main() {
Right: 10,
Bottom: 10,
},
TitleOption: charts.TitleOption{
Title: charts.TitleOption{
Text: "Line",
},
LegendOption: charts.LegendOption{
Legend: charts.LegendOption{
Data: []string{
"Email",
"Union Ads",

10
examples/painter/main.go
View file

@ -490,7 +490,7 @@ func main() {
Left: 1,
Right: p.Width() - 1,
Bottom: top + 50,
})), charts.AxisPainterOption{
})), charts.AxisOption{
Data: []string{
"Mon",
"Tue",
@ -512,7 +512,7 @@ func main() {
Left: 1,
Right: p.Width() - 1,
Bottom: top + 50,
})), charts.AxisPainterOption{
})), charts.AxisOption{
Position: charts.PositionTop,
BoundaryGap: charts.FalseFlag(),
Data: []string{
@ -536,7 +536,7 @@ func main() {
Left: 10,
Right: 60,
Bottom: top + 200,
})), charts.AxisPainterOption{
})), charts.AxisOption{
Position: charts.PositionLeft,
Data: []string{
"Mon",
@ -557,7 +557,7 @@ func main() {
Left: 100,
Right: 150,
Bottom: top + 200,
})), charts.AxisPainterOption{
})), charts.AxisOption{
Position: charts.PositionRight,
Data: []string{
"Mon",
@ -579,7 +579,7 @@ func main() {
Left: 150,
Right: 300,
Bottom: top + 200,
})), charts.AxisPainterOption{
})), charts.AxisOption{
BoundaryGap: charts.FalseFlag(),
Position: charts.PositionLeft,
Data: []string{