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feat: support horizontal bar chart

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This commit is contained in:
vicanso 2022-06-15 23:30:37 +08:00
parent b69728dd12
commit 3f24521593
15 changed files with 677 additions and 91 deletions
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195
examples/charts/main.go
View file

@ -218,6 +218,201 @@ func indexHandler(w http.ResponseWriter, req *http.Request) {
},
},
},
// 柱状图
{
Title: charts.TitleOption{
Text: "Bar",
},
XAxis: charts.NewXAxisOption([]string{
"Mon",
"Tue",
"Wed",
"Thu",
"Fri",
"Sat",
"Sun",
}),
Legend: charts.LegendOption{
Data: []string{
"Rainfall",
"Evaporation",
},
Icon: charts.IconRect,
},
SeriesList: []charts.Series{
charts.NewSeriesFromValues([]float64{
120,
200,
150,
80,
70,
110,
130,
}, charts.ChartTypeBar),
{
Type: charts.ChartTypeBar,
Data: []charts.SeriesData{
{
Value: 100,
},
{
Value: 190,
Style: charts.Style{
FillColor: charts.Color{
R: 169,
G: 0,
B: 0,
A: 255,
},
},
},
{
Value: 230,
},
{
Value: 140,
},
{
Value: 100,
},
{
Value: 200,
},
{
Value: 180,
},
},
},
},
},
// 水平柱状图
{
Title: charts.TitleOption{
Text: "World Population",
},
Padding: charts.Box{
Top: 20,
Right: 40,
Bottom: 20,
Left: 20,
},
Legend: charts.NewLegendOption([]string{
"2011",
"2012",
}),
YAxisOptions: charts.NewYAxisOptions([]string{
"Brazil",
"Indonesia",
"USA",
"India",
"China",
"World",
}),
SeriesList: []charts.Series{
{
Type: charts.ChartTypeHorizontalBar,
Data: charts.NewSeriesDataFromValues([]float64{
18203,
23489,
29034,
104970,
131744,
630230,
}),
},
{
Type: charts.ChartTypeHorizontalBar,
Data: charts.NewSeriesDataFromValues([]float64{
19325,
23438,
31000,
121594,
134141,
681807,
}),
},
},
},
{
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,
),
},
},
},
}
handler(w, req, chartOptions, nil)
}

94
examples/horizontal_bar_chart/main.go Normal file
View file

@ -0,0 +1,94 @@
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, "horizontal-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.NewHorizontalBarChart(p, charts.HorizontalBarChartOption{
Title: charts.TitleOption{
Text: "World Population",
},
Padding: charts.Box{
Top: 20,
Right: 40,
Bottom: 20,
Left: 20,
},
Legend: charts.NewLegendOption([]string{
"2011",
"2012",
}),
YAxisOptions: charts.NewYAxisOptions([]string{
"Brazil",
"Indonesia",
"USA",
"India",
"China",
"World",
}),
SeriesList: []charts.Series{
{
Type: charts.ChartTypeHorizontalBar,
Data: charts.NewSeriesDataFromValues([]float64{
18203,
23489,
29034,
104970,
131744,
630230,
}),
},
{
Type: charts.ChartTypeHorizontalBar,
Data: charts.NewSeriesDataFromValues([]float64{
19325,
23438,
31000,
121594,
134141,
681807,
}),
},
},
}).Render()
if err != nil {
panic(err)
}
buf, err := p.Bytes()
if err != nil {
panic(err)
}
err = writeFile(buf)
if err != nil {
panic(err)
}
}