X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altoslib%2FAltosConvert.java;h=5b3ff39187d3a8452e149287361aaa7eb83d7ac4;hp=3489a609fc9eac2156b9c586ee23af0660a09512;hb=222158581887b5f9e8b9843d14321c313fa023fa;hpb=d97c4d2f6de2981c2efd7bfbc9f5f9649987b854 diff --git a/altoslib/AltosConvert.java b/altoslib/AltosConvert.java index 3489a609..5b3ff391 100644 --- a/altoslib/AltosConvert.java +++ b/altoslib/AltosConvert.java @@ -24,6 +24,9 @@ package org.altusmetrum.altoslib_11; import java.util.*; public class AltosConvert { + + public static final double gravity = 9.80665; + /* * Pressure Sensor Model, version 1.1 * @@ -44,20 +47,20 @@ public class AltosConvert { * in Joules/(kilogram-Kelvin). */ - public static final double GRAVITATIONAL_ACCELERATION = -9.80665; - public static final double AIR_GAS_CONSTANT = 287.053; - public static final double NUMBER_OF_LAYERS = 7; - public static final double MAXIMUM_ALTITUDE = 84852.0; - public static final double MINIMUM_PRESSURE = 0.3734; - public static final double LAYER0_BASE_TEMPERATURE = 288.15; - public static final double LAYER0_BASE_PRESSURE = 101325; + private static final double GRAVITATIONAL_ACCELERATION = -gravity; + private static final double AIR_GAS_CONSTANT = 287.053; + private static final double NUMBER_OF_LAYERS = 7; + private static final double MAXIMUM_ALTITUDE = 84852.0; + private static final double MINIMUM_PRESSURE = 0.3734; + private static final double LAYER0_BASE_TEMPERATURE = 288.15; + private static final double LAYER0_BASE_PRESSURE = 101325; /* lapse rate and base altitude for each layer in the atmosphere */ - public static final double[] lapse_rate = { + private static final double[] lapse_rate = { -0.0065, 0.0, 0.001, 0.0028, 0.0, -0.0028, -0.002 }; - public static final int[] base_altitude = { + private static final int[] base_altitude = { 0, 11000, 20000, 32000, 47000, 51000, 71000 }; @@ -188,7 +191,7 @@ public class AltosConvert { } public static double - cc_ignitor_to_voltage(double ignite) + cc_igniter_to_voltage(double ignite) { return ignite / 32767 * 15.0; } @@ -307,6 +310,10 @@ public class AltosConvert { return 434.550 + channel * 0.100; } + public static int telem_to_rssi(int telem) { + return telem / 2 - 74; + } + public static int[] ParseHex(String line) { String[] tokens = line.split("\\s+"); int[] array = new int[tokens.length]; @@ -384,6 +391,21 @@ public class AltosConvert { return lb / 0.22480894; } + public static double acceleration_from_sensor(double sensor, double plus_g, double minus_g, double ground) { + if (sensor == AltosLib.MISSING) + return AltosLib.MISSING; + + if (plus_g == AltosLib.MISSING || minus_g == AltosLib.MISSING) + return AltosLib.MISSING; + + if (ground == AltosLib.MISSING) + ground = plus_g; + + double counts_per_g = (plus_g - minus_g) / 2.0; + double counts_per_mss = counts_per_g / gravity; + return (sensor - ground) / counts_per_mss; + } + public static boolean imperial_units = false; public static AltosDistance distance = new AltosDistance(); @@ -408,6 +430,14 @@ public class AltosConvert { public static AltosLongitude longitude = new AltosLongitude(); + public static AltosRotationRate rotation_rate = new AltosRotationRate(); + + public static AltosStateName state_name = new AltosStateName(); + + public static AltosPyroName pyro_name = new AltosPyroName(); + + public static AltosUnits magnetic_field = null; + public static String show_gs(String format, double a) { a = meters_to_g(a); format = format.concat(" g");