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Prettier X Scale

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This commit is contained in:
David Högborg
2015-07-17 11:18:46 +02:00
parent 02b874fd3a
commit 74849e6aee
1 changed files with 4 additions and 2 deletions
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6
internal/gopow/annotater.go
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@@ -1,6 +1,7 @@
package gopow package gopow
import ( import (
"fmt"
"image" "image"
"math" "math"
"time" "time"
@@ -86,7 +87,7 @@ func (a *Annotator) DrawXScale() error {
}).Debug("annotate X scale") }).Debug("annotate X scale")
// how many samples? // how many samples?
count := int(math.Floor(float64(a.table.Bins) / float64(500))) count := int(math.Floor(float64(a.table.Bins) / float64(350)))
log.WithFields(log.Fields{ log.WithFields(log.Fields{
"labels": count, "labels": count,
@@ -100,7 +101,8 @@ func (a *Annotator) DrawXScale() error {
hz := a.table.HzLow + (float64(si) * hzPerLabel) hz := a.table.HzLow + (float64(si) * hzPerLabel)
px := si * pxPerLabel px := si * pxPerLabel
str := humanize.SI(hz, "Hz") fract, suffix := humanize.ComputeSI(hz)
str := fmt.Sprintf("%0.2f %sHz", fract, suffix)
// draw a guideline on the exact frequency // draw a guideline on the exact frequency
for i := 0; i < 50; i++ { for i := 0; i < 50; i++ {