Spaces:
Sleeping
Sleeping
File size: 8,412 Bytes
6ee917b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 | import Foundation
enum MfWaveVariable: String, CaseIterable, GenericVariable, GenericVariableMixable {
case wave_height
case wave_period
case wave_direction
case wind_wave_height
case wind_wave_period
case wind_wave_direction
case swell_wave_height
case swell_wave_period
case swell_wave_direction
var storePreviousForecast: Bool {
return false
}
var isElevationCorrectable: Bool {
return false
}
var requiresOffsetCorrectionForMixing: Bool {
return false
}
var omFileName: (file: String, level: Int) {
return (rawValue, 0)
}
/// Si unit
var unit: SiUnit {
switch self {
case .wave_height:
return .metre
case .wave_period:
return .seconds
case .wave_direction:
return .degreeDirection
case .wind_wave_height:
return .metre
case .wind_wave_period:
return .seconds
case .wind_wave_direction:
return .degreeDirection
case .swell_wave_height:
return .metre
case .swell_wave_period:
return .seconds
case .swell_wave_direction:
return .degreeDirection
}
}
var scalefactor: Float {
let period: Float = 20 // 0.05s resolution
let height: Float = 50 // 0.02m resolution
let direction: Float = 1
switch self {
case .wave_height:
return height
case .wave_period:
return period
case .wave_direction:
return direction
case .wind_wave_height:
return height
case .wind_wave_period:
return period
case .wind_wave_direction:
return direction
case .swell_wave_height:
return height
case .swell_wave_period:
return period
case .swell_wave_direction:
return direction
}
}
var interpolation: ReaderInterpolation {
switch self {
case .wave_height:
return .linear
case .wave_period:
return .hermite(bounds: 0...Float.infinity)
case .wave_direction:
return .linearDegrees
case .wind_wave_height:
return .linear
case .wind_wave_period:
return .hermite(bounds: 0...Float.infinity)
case .wind_wave_direction:
return .linearDegrees
case .swell_wave_height:
return .linear
case .swell_wave_period:
return .hermite(bounds: 0...Float.infinity)
case .swell_wave_direction:
return .linearDegrees
}
}
}
enum MfCurrentVariable: String, CaseIterable, GenericVariable, GenericVariableMixable {
case ocean_u_current
case ocean_v_current
case sea_level_height_msl
case invert_barometer_height
var storePreviousForecast: Bool {
return false
}
var isElevationCorrectable: Bool {
return false
}
var requiresOffsetCorrectionForMixing: Bool {
return false
}
var omFileName: (file: String, level: Int) {
return (rawValue, 0)
}
/// Si unit
var unit: SiUnit {
switch self {
case .ocean_u_current, .ocean_v_current:
return .metrePerSecond
case .sea_level_height_msl, .invert_barometer_height:
return .metre
}
}
var scalefactor: Float {
switch self {
case .ocean_u_current, .ocean_v_current:
return 20 // 0.05 ms (~0.1 knots)
case .sea_level_height_msl, .invert_barometer_height:
return 100 // 1cm res
}
}
var interpolation: ReaderInterpolation {
switch self {
case .ocean_u_current, .ocean_v_current:
return .hermite(bounds: nil)
case .sea_level_height_msl, .invert_barometer_height:
return .hermite(bounds: nil)
}
}
}
enum MfCurrentVariableDerived: String, CaseIterable, GenericVariableMixable {
case ocean_current_velocity
case ocean_current_direction
var requiresOffsetCorrectionForMixing: Bool {
return false
}
}
struct MfCurrentReader: GenericReaderDerived, GenericReaderProtocol {
typealias Domain = MfWaveDomain
typealias Variable = MfCurrentVariable
typealias Derived = MfCurrentVariableDerived
typealias MixingVar = VariableOrDerived<MfCurrentVariable, MfCurrentVariableDerived>
let reader: GenericReaderCached<MfWaveDomain, Variable>
func get(raw: MfCurrentVariable, time: TimerangeDtAndSettings) throws -> DataAndUnit {
return try reader.get(variable: raw, time: time)
}
func prefetchData(raw: MfCurrentVariable, time: TimerangeDtAndSettings) throws {
try reader.prefetchData(variable: raw, time: time)
}
func get(derived: MfCurrentVariableDerived, time: TimerangeDtAndSettings) throws -> DataAndUnit {
switch derived {
case .ocean_current_velocity:
let u = try get(raw: .ocean_u_current, time: time).data
let v = try get(raw: .ocean_v_current, time: time).data
let speed = zip(u,v).map(Meteorology.windspeed)
return DataAndUnit(speed, .metrePerSecond)
case .ocean_current_direction:
let u = try get(raw: .ocean_u_current, time: time).data
let v = try get(raw: .ocean_v_current, time: time).data
let direction = Meteorology.windirectionFast(u: u, v: v).map {
($0+180).truncatingRemainder(dividingBy: 360)
}
return DataAndUnit(direction, .degreeDirection)
}
}
func prefetchData(derived: MfCurrentVariableDerived, time: TimerangeDtAndSettings) throws {
switch derived {
case .ocean_current_direction, .ocean_current_velocity:
try prefetchData(raw: .ocean_u_current, time: time)
try prefetchData(raw: .ocean_v_current, time: time)
}
}
}
/// Converts negative wave direction to positive
struct MfWaveReader: GenericReaderProtocol {
typealias Domain = MfWaveDomain
typealias MixingVar = MfWaveVariable
let reader: GenericReader<MfWaveDomain, MfWaveVariable>
var modelLat: Float {
return reader.modelLat
}
var modelLon: Float {
return reader.modelLon
}
var modelElevation: ElevationOrSea {
return reader.modelElevation
}
var targetElevation: Float {
return reader.targetElevation
}
var modelDtSeconds: Int {
return reader.modelDtSeconds
}
func getStatic(type: ReaderStaticVariable) throws -> Float? {
return try reader.getStatic(type: type)
}
func get(variable: MfWaveVariable, time: TimerangeDtAndSettings) throws -> DataAndUnit {
let data = try reader.get(variable: variable, time: time)
switch variable {
case .wave_direction, .wind_wave_direction, .swell_wave_direction:
let direction = data.data.map {
($0+180).truncatingRemainder(dividingBy: 360)
}
return DataAndUnit(direction, .degreeDirection)
default:
return data
}
}
func prefetchData(variable: MfWaveVariable, time: TimerangeDtAndSettings) throws {
try reader.prefetchData(variable: variable, time: time)
}
}
enum MfSSTVariable: String, CaseIterable, GenericVariable, GenericVariableMixable {
case sea_surface_temperature
var storePreviousForecast: Bool {
return false
}
var isElevationCorrectable: Bool {
return false
}
var requiresOffsetCorrectionForMixing: Bool {
return false
}
var omFileName: (file: String, level: Int) {
return (rawValue, 0)
}
/// Si unit
var unit: SiUnit {
switch self {
case .sea_surface_temperature:
return .celsius
}
}
var scalefactor: Float {
switch self {
case .sea_surface_temperature:
return 20
}
}
var interpolation: ReaderInterpolation {
switch self {
case .sea_surface_temperature:
return .hermite(bounds: nil)
}
}
}
|