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feat: polish & windviz & deploy

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This commit is contained in:
Anatoly Antonov 2026-05-30 06:29:39 +09:00
parent 81b8e763bd
commit 465ad00f7b
78 changed files with 20622 additions and 2154 deletions
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22
internal/engine/models.go
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@ -4,6 +4,7 @@ import (
"math"
"sort"
"predictor-refactored/internal/numerics"
"predictor-refactored/internal/weather"
)
@ -45,29 +46,10 @@ func ConstantRate(rate float64) Model {
func ParachuteDescent(seaLevelRate float64) Model {
k := seaLevelRate * 1.1045
return func(_ float64, s State) State {
return State{Altitude: -k / math.Sqrt(nasaDensity(s.Altitude))}
return State{Altitude: -k / math.Sqrt(numerics.NasaDensity(s.Altitude))}
}
}
// nasaDensity returns air density (kg/m^3) for an altitude in metres,
// using the NASA simple atmosphere model.
// See https://www.grc.nasa.gov/WWW/K-12/airplane/atmosmet.html.
func nasaDensity(alt float64) float64 {
var temp, pressure float64
switch {
case alt > 25000:
temp = -131.21 + 0.00299*alt
pressure = 2.488 * math.Pow((temp+273.1)/216.6, -11.388)
case alt > 11000:
temp = -56.46
pressure = 22.65 * math.Exp(1.73-0.000157*alt)
default:
temp = 15.04 - 0.00649*alt
pressure = 101.29 * math.Pow((temp+273.1)/288.08, 5.256)
}
return pressure / (0.2869 * (temp + 273.1))
}
// RateSegment is one entry in a Piecewise rate schedule. Until is the UNIX
// timestamp at which this segment ends — the model emits the segment's
// Rate for all t < Until. The final segment's Rate is held indefinitely.