modules added

configs/histogram.toml

@@ -27,6 +27,8 @@ wsl = true  # true, if executable is within linux subsystem on windows
     timeout = "10s"
     remap = "color.png" # das Bild mit der Zielfarbpalette. Wird erzeugt, falls nicht vorhanden. (Schreibrechte beachten)
     colors = 10  # Anzahl der Farben im Histogramm
+    maxvalue = 10000
+    params = "[[path]] -resize 100x100! -dither Riemersma -colors 10 +dither -remap color.png -format %c histogram:info:"
     resize = "100x100!"
 
 [histogram.colormap]

go.mod

+module gitlab.switch.ch/memoriav/memobase-2020/services/histogram
+
+go 1.14
+
+require (
+	github.com/BurntSushi/toml v0.3.1
+	github.com/goph/emperror v0.17.2
+	github.com/gorilla/handlers v1.4.2
+	github.com/gorilla/mux v1.7.4
+	github.com/op/go-logging v0.0.0-20160315200505-970db520ece7
+)

go.sum

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+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
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pkg/histogram/service.go

@@ -62,7 +62,7 @@ func NewHistogram(convert, resize, remap string, colormap map[string]string, col
 }
 
 func (h *Histogram) Exec(file string, args ...interface{}) (interface{}, error) {
-	colors := make(map[string]int64)
+	colors := make(map[string]float64)
 
 	cmdparam := []string{file, "-resize", h.resize, "-dither", "Riemersma", "-colors", fmt.Sprintf("%d", h.colors), "+dither", "-remap", h.remap, "-format", `%c`, "histogram:info:"}
 	cmdfile := h.convert
@@ -103,16 +103,16 @@ func (h *Histogram) Exec(file string, args ...interface{}) (interface{}, error)
 		col := matches[2]
 		countstr := matches[1]
 		if _, ok := colors[col]; !ok {
-			colors[col] = 0
+			colors[col] = 0.0
 		}
 		count, err := strconv.ParseInt(countstr, 10, 64)
 		if err != nil {
 			return colors, emperror.Wrapf(err, "cannot parse number %s in line %s", countstr, line)
 		}
-		colors[col] += count
+		colors[col] += float64(count)/float64(10000)
 	}
 
-	result := make(map[string]int64)
+	result := make(map[string]float64)
 	for col, weight := range colors {
 		ok := false
 		for name, hex := range h.colormap {