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This commit is contained in:
5684185+vsariola@users.noreply.github.com
2026-01-01 19:59:23 +02:00
parent 179ebb7cc3
commit fcb9a06249
5 changed files with 44 additions and 19 deletions
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34
tracker/gioui/specanalyzer.go
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@ -68,10 +68,8 @@ func (s *SpectrumState) Layout(gtx C) D {
return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
layout.Flexed(1, func(gtx C) D {
data := func(chn int, xr plotRange) (yr plotRange) {
xr.a = softplus(xr.a*10) / 10
xr.b = softplus(xr.b*10) / 10
xr.a = float32(math.Log(float64(xr.a))) + 1
xr.b = float32(math.Log(float64(xr.b))) + 1
xr.a = float32(math.Exp2(float64(xr.a-1) * 8))
xr.b = float32(math.Exp2(float64(xr.b-1) * 8))
w1, f1 := math.Modf(float64(xr.a) * float64(speclen))
w2, f2 := math.Modf(float64(xr.b) * float64(speclen))
x1 := max(int(w1), 0)
@ -104,13 +102,33 @@ func (s *SpectrumState) Layout(gtx C) D {
return plotRange{-y1, -y2}
}
type pair struct {
freq float64
label string
}
xticks := func(r plotRange, yield func(pos float32, label string)) {
yield(0, "")
yield(1, "")
for _, p := range []pair{
{freq: 10, label: "10 Hz"},
{freq: 20, label: "20 Hz"},
{freq: 50, label: "50 Hz"},
{freq: 100, label: "100 Hz"},
{freq: 200, label: "200 Hz"},
{freq: 500, label: "500 Hz"},
{freq: 1e3, label: "1 kHz"},
{freq: 2e3, label: "2 kHz"},
{freq: 5e3, label: "5 kHz"},
{freq: 1e4, label: "10 kHz"},
{freq: 2e4, label: "20 kHz"},
} {
x := float32(math.Log2((p.freq/22050))/8 + 1)
if x >= r.a && x <= r.b {
yield(x, p.label)
}
}
}
yticks := func(r plotRange, yield func(pos float32, label string)) {
yield(-1, "")
yield(0, "")
yield(-1, "0 dB")
yield(0, "-Inf dB")
}
return s.plot.Layout(gtx, data, xticks, yticks, 0, numchns)
}),