clearpilot: initial commit of full source

common/conversions.py

@@ -0,0 +1,23 @@
+import numpy as np
+
+class Conversions:
+  # Speed
+  MPH_TO_KPH = 1.609344
+  KPH_TO_MPH = 1. / MPH_TO_KPH
+  MS_TO_KPH = 3.6
+  KPH_TO_MS = 1. / MS_TO_KPH
+  MS_TO_MPH = MS_TO_KPH * KPH_TO_MPH
+  MPH_TO_MS = MPH_TO_KPH * KPH_TO_MS
+  METER_TO_FOOT = 3.28084
+  FOOT_TO_METER = 1 / METER_TO_FOOT
+  CM_TO_INCH = METER_TO_FOOT / 100.0 * 12.0;
+  INCH_TO_CM = 1.0 / CM_TO_INCH;
+  MS_TO_KNOTS = 1.9438
+  KNOTS_TO_MS = 1. / MS_TO_KNOTS
+
+  # Angle
+  DEG_TO_RAD = np.pi / 180.
+  RAD_TO_DEG = 1. / DEG_TO_RAD
+
+  # Mass
+  LB_TO_KG = 0.453592