X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altosui%2Faltoslib%2Fsrc%2Forg%2Faltusmetrum%2FAltosLib%2FAltosConvert.java;h=3527b575178a2291ceb62b5729c3987af756f618;hp=6773ab7e07dcce088c464d47f25f91e807529ff0;hb=3c2f601139d36761de6a8a2210545d082ef16133;hpb=40ee170753f4fd422c848e34a8da104683b7c8a2 diff --git a/altosui/altoslib/src/org/altusmetrum/AltosLib/AltosConvert.java b/altosui/altoslib/src/org/altusmetrum/AltosLib/AltosConvert.java index 6773ab7e..3527b575 100644 --- a/altosui/altoslib/src/org/altusmetrum/AltosLib/AltosConvert.java +++ b/altosui/altoslib/src/org/altusmetrum/AltosLib/AltosConvert.java @@ -41,27 +41,27 @@ public class AltosConvert { * in Joules/(kilogram-Kelvin). */ - static final double GRAVITATIONAL_ACCELERATION = -9.80665; - static final double AIR_GAS_CONSTANT = 287.053; - static final double NUMBER_OF_LAYERS = 7; - static final double MAXIMUM_ALTITUDE = 84852.0; - static final double MINIMUM_PRESSURE = 0.3734; - static final double LAYER0_BASE_TEMPERATURE = 288.15; - static final double LAYER0_BASE_PRESSURE = 101325; + 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; /* lapse rate and base altitude for each layer in the atmosphere */ - static final double[] lapse_rate = { + public static final double[] lapse_rate = { -0.0065, 0.0, 0.001, 0.0028, 0.0, -0.0028, -0.002 }; - static final int[] base_altitude = { + public static final int[] base_altitude = { 0, 11000, 20000, 32000, 47000, 51000, 71000 }; /* outputs atmospheric pressure associated with the given altitude. * altitudes are measured with respect to the mean sea level */ - static double + public static double altitude_to_pressure(double altitude) { double base_temperature = LAYER0_BASE_TEMPERATURE; @@ -114,7 +114,7 @@ public class AltosConvert { /* outputs the altitude associated with the given pressure. the altitude returned is measured with respect to the mean sea level */ - static double + public static double pressure_to_altitude(double pressure) { @@ -178,19 +178,19 @@ public class AltosConvert { return altitude; } - static double + public static double cc_battery_to_voltage(double battery) { return battery / 32767.0 * 5.0; } - static double + public static double cc_ignitor_to_voltage(double ignite) { return ignite / 32767 * 15.0; } - static double radio_to_frequency(int freq, int setting, int cal, int channel) { + public static double radio_to_frequency(int freq, int setting, int cal, int channel) { double f; if (freq > 0) @@ -205,13 +205,13 @@ public class AltosConvert { return f + channel * 0.100; } - static int radio_frequency_to_setting(double frequency, int cal) { + public static int radio_frequency_to_setting(double frequency, int cal) { double set = frequency / 434.550 * cal; return (int) Math.floor (set + 0.5); } - static int radio_frequency_to_channel(double frequency) { + public static int radio_frequency_to_channel(double frequency) { int channel = (int) Math.floor ((frequency - 434.550) / 0.100 + 0.5); if (channel < 0) @@ -221,11 +221,11 @@ public class AltosConvert { return channel; } - static double radio_channel_to_frequency(int channel) { + public static double radio_channel_to_frequency(int channel) { return 434.550 + channel * 0.100; } - static int[] ParseHex(String line) { + public static int[] ParseHex(String line) { String[] tokens = line.split("\\s+"); int[] array = new int[tokens.length]; @@ -238,19 +238,19 @@ public class AltosConvert { return array; } - static double meters_to_feet(double meters) { + public static double meters_to_feet(double meters) { return meters * (100 / (2.54 * 12)); } - static double meters_to_mach(double meters) { + public static double meters_to_mach(double meters) { return meters / 343; /* something close to mach at usual rocket sites */ } - static double meters_to_g(double meters) { + public static double meters_to_g(double meters) { return meters / 9.80665; } - static int checksum(int[] data, int start, int length) { + public static int checksum(int[] data, int start, int length) { int csum = 0x5a; for (int i = 0; i < length; i++) csum += data[i + start];