main.go 1.24 KB
Newer Older
David Blyth's avatar
David Blyth committed
1 2 3 4 5 6 7 8 9
package main

import (
	"flag"
	"fmt"
	"log"
	"math"
	"os"

David Blyth's avatar
David Blyth committed
10
	"eicweb.phy.anl.gov/EIC/eicplot"
David Blyth's avatar
David Blyth committed
11 12
	"github.com/proio-org/go-proio"
	"github.com/proio-org/go-proio-pb/model/eic"
David Blyth's avatar
David Blyth committed
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
	"go-hep.org/x/hep/hbook"
	"go-hep.org/x/hep/hplot"
	"gonum.org/v1/plot"
	"gonum.org/v1/plot/vg"
)

func printUsage() {
	fmt.Fprintf(os.Stderr, `Usage: `+os.Args[0]+` [options] <proio-input-file>

options:
`,
	)
	flag.PrintDefaults()
}

var (
	output = flag.String("output", "out.png", "output file")
)

func main() {
	flag.Usage = printUsage
	flag.Parse()
	if flag.NArg() != 1 {
		printUsage()
		log.Fatal("Invalid arguments")
	}

	reader, err := proio.Open(flag.Arg(0))
	if err != nil {
		log.Fatal(err)
	}
	defer reader.Close()

	p, _ := plot.New()
	p.X.Label.Text = "log_10{E dep. (MeV)}"
	p.X.Tick.Marker = eicplot.PreciseTicks{5}
	p.Y.Tick.Marker = eicplot.LogTicks{}
	p.Y.Scale = eicplot.LogScale{}

	hist := hbook.NewH1D(100, -9, 2)

David Blyth's avatar
David Blyth committed
54
	for event := range reader.ScanEvents(10) {
David Blyth's avatar
David Blyth committed
55 56 57 58 59 60 61
		trackerIDs := event.TaggedEntries("Tracker")
		for _, id := range trackerIDs {
			eDep, ok := event.GetEntry(id).(*eic.EnergyDep)
			if !ok {
				continue
			}

David Blyth's avatar
David Blyth committed
62
			hist.Fill(math.Log10(float64(eDep.GetMean()*1000)), 1)
David Blyth's avatar
David Blyth committed
63 64 65 66 67 68 69 70
		}
	}

	hPlot := hplot.NewH1D(hist)
	p.Add(hPlot)

	p.Save(6*vg.Inch, 4*vg.Inch, *output)
}