53 lines
970 B
Go
53 lines
970 B
Go
|
package main
|
||
|
|
|
||
|
|
//go:generate go run main.go
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"math/rand"
|
||
|
|
"os"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/wcharczuk/go-chart"
|
||
|
|
)
|
||
|
|
|
||
|
|
func random(min, max float64) float64 {
|
||
|
|
return rand.Float64()*(max-min) + min
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
numValues := 1024
|
||
|
|
numSeries := 100
|
||
|
|
series := make([]chart.Series, numSeries)
|
||
|
|
|
||
|
|
for i := 0; i < numSeries; i++ {
|
||
|
|
xValues := make([]time.Time, numValues)
|
||
|
|
yValues := make([]float64, numValues)
|
||
|
|
|
||
|
|
for j := 0; j < numValues; j++ {
|
||
|
|
xValues[j] = time.Now().AddDate(0, 0, (numValues-j)*-1)
|
||
|
|
yValues[j] = random(float64(-500), float64(500))
|
||
|
|
}
|
||
|
|
|
||
|
|
series[i] = chart.TimeSeries{
|
||
|
|
Name: fmt.Sprintf("aaa.bbb.hostname-%v.ccc.ddd.eee.fff.ggg.hhh.iii.jjj.kkk.lll.mmm.nnn.value", i),
|
||
|
|
XValues: xValues,
|
||
|
|
YValues: yValues,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
graph := chart.Chart{
|
||
|
|
XAxis: chart.XAxis{
|
||
|
|
Name: "Time",
|
||
|
|
},
|
||
|
|
YAxis: chart.YAxis{
|
||
|
|
Name: "Value",
|
||
|
|
},
|
||
|
|
Series: series,
|
||
|
|
}
|
||
|
|
|
||
|
|
f, _ := os.Create("output.png")
|
||
|
|
defer f.Close()
|
||
|
|
graph.Render(chart.PNG, f)
|
||
|
|
}
|