kopia lustrzana https://github.com/cyoung/stratux
98 wiersze
2.1 KiB
Go
98 wiersze
2.1 KiB
Go
package main
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import (
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"fmt"
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// "time"
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"bufio"
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"gonum.org/v1/plot"
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"gonum.org/v1/plot/plotter"
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"gonum.org/v1/plot/plotutil"
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"gonum.org/v1/plot/vg"
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"os"
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"sort"
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"strconv"
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"strings"
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"unicode"
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)
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func main() {
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if len(os.Args) < 2 {
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fmt.Printf("%s <replay log>\n", os.Args[0])
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return
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}
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f, err := os.Open(os.Args[1])
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if err != nil {
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fmt.Printf("error opening '%s': %s\n", os.Args[1], err.Error())
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return
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}
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rdr := bufio.NewReader(f)
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// For now, "windows" are 1 minute intervals.
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ppm := make(map[int64]int64) // window number -> pkts
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curWindow := int64(0)
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windowOffset := int64(0)
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for {
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buf, err := rdr.ReadString('\n')
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if err != nil {
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break
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}
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buf = strings.TrimFunc(buf, func(r rune) bool { return unicode.IsControl(r) })
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linesplit := strings.Split(buf, ",")
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if len(linesplit) < 2 { // Blank line or invalid.
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continue
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}
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if linesplit[0] == "START" { // Reset ticker, new start.
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windowOffset = curWindow
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} else { // If it's not "START", then it's a tick count.
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i, err := strconv.ParseInt(linesplit[0], 10, 64)
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if err != nil {
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fmt.Printf("invalid tick: '%s'\n\n\n%s\n", linesplit[0], buf)
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continue
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}
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// Window number in current session.
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wnum := int64(i / (60 * 1000000000))
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// fmt.Printf("%d\n", curWindow)
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if wnum+windowOffset != curWindow { // Switched over.
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curWindow = wnum + windowOffset
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fmt.Printf("ppm=%d\n", ppm[curWindow-1])
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}
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ppm[curWindow]++
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}
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}
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// Make graph.
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p, err := plot.New()
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if err != nil {
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panic(err)
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}
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p.Title.Text = "Stratux PPM vs. Time"
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p.X.Label.Text = "1 min intervals"
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p.Y.Label.Text = "PPM"
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// Loop through an ordered list of the periods, so that the line connects the right dots.
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var keys []int
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for k := range ppm {
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keys = append(keys, int(k))
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}
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sort.Ints(keys)
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pts := make(plotter.XYs, len(ppm))
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i := 0
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for _, k := range keys {
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v := ppm[int64(k)]
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fmt.Printf("%d, %d\n", k, v)
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pts[i].X = float64(k)
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pts[i].Y = float64(v)
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i++
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}
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err = plotutil.AddLinePoints(p, "UAT", pts)
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if err != nil {
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panic(err)
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}
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if err := p.Save(4*vg.Inch, 4*vg.Inch, "ppm.png"); err != nil {
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panic(err)
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}
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}
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