hut/outfly
hut/outfly
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

atmosphere: fix density calculations

Browse source
This commit is contained in:
yuni 2024-11-28 03:27:54 +01:00
parent b348b3524a
commit 5f1c15e614
2 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
doc/research.md
View file

@ -122,8 +122,8 @@ Density:
- 500km-1029.2km: `rho[kg/m³](x[m]) = exp(-15.98781474626208 - 0.00000816092074*x)`
- 200km-500km: `rho[kg/m³](x[m]) = exp(-4.22487505187567 - 0.00003251947782*x)`
- 0km-200km: `rho[kg/m³](x[m]) = exp(-1.83275074106303 - 0.00004486861245*x)`
- -62000km-0km: `rho[kg/m³](x[m]) = -0.0725781*x + 0.16` (linear regression)
- -70000km-62000km: `rho[kg/m³](x[m]) = 25000.0 / (1 + exp(0.00580528 * x + 361.44394)))` (logistic regression)
- -62000km-0km: `rho[kg/m³](x[m]) = -0.0000725781*x + 0.16` (linear regression)
- -70000km-62000km: `rho[kg/m³](x[m]) = 25000.0 / (1 + exp(0.00000580528 * x + 361.44394)))` (logistic regression)
### Designing the in-game atmosphere

4
src/nature.rs
View file

@ -325,7 +325,7 @@ pub fn jupiter_altitude_to_density(altitude: f64) -> f64 {
} else if x >= 0.0 {
return (-1.83275074106303 - 0.00004486861245 * x).exp();
} else if x >= -62000e3 {
return -0.0725781 * x + 0.16;
return -0.0000725781 * x + 0.16;
}
return 25000.0 / (1.0 + (0.00580528 * x + 361.44394)).exp();
return 25000.0 / (1.0 + (0.00000580528 * x + 361.44394).exp());
}