Initial commit of files

classes/gpsmath.py

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+from math import sin, cos, asin, sqrt, radians
+
+earth_flatening = 1.0/298.257223563
+earth_radius = 6378137.0
+
+def haversine(lat1, lon1, lat2, lon2):
+  """
+  Calculate the great circle distance between two points
+  on the earth (specified in decimal degrees)
+  """
+  # convert decimal degrees to radians
+  lon1, lat1, lon2, lat2 = map(radians, [lon1, lat1, lon2, lat2])
+
+  # haversine formula
+  dlon = lon2 - lon1
+  dlat = lat2 - lat1
+  a = sin(dlat/2)**2 + cos(lat1) * cos(lat2) * sin(dlon/2)**2
+  c = 2 * asin(sqrt(a))
+
+  # 6367 km is the radius of the Earth
+  return earth_radius * c
+
+def roydistance(lat1, lon1, lat2, lon2):
+  """
+  Calculate the great circle distance between two points
+  on the earth (specified in decimal degrees)
+  """
+  # convert decimal degrees to radians
+  lon1, lat1, lon2, lat2 = map(radians, [lon1, lat1, lon2, lat2])
+    
+  # Roy's method
+  f1 = (1.0 - earth_flatening)
+
+  top = (pow((lon2-lon1), 2) * pow(cos(lat1), 2)) + pow(lat2-lat1, 2)
+  bot = pow(sin(lat1), 2) + (pow(f1, 2) * pow(cos(lat1), 2))
+
+  return f1 * earth_radius * sqrt(top/bot)

classes/utils/audio.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Fri Jan  8 10:26:56 2021
+
+@author: neal
+"""
+
+import os
+from sys import platform as _platform
+
+sound_args = ""
+
+def play_sound(file):
+  if _platform == "win32" or _platform == "win64" or _platform == "cygwin":
+    cmd = "wmplayer " + '"' + file + '"'
+  else:
+    cmd = "aplay -N " + sound_args + " " + file + " &"
+#  print(cmd)
+  os.system(cmd)
+
+#play_sound("../misc/boat-horn.wav")

classes/utils/logging.py

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+import sys
+from time import strftime, time
+import csv
+import json
+
+#
+# Text logging
+#
+class LOGlog():
+  def __init__(self):
+    self.filename = ""
+    self.handle = 0
+    self.lineno = 0
+
+  def genname(dire="logs", basename="log-", ext="log"):
+    return dire + '/' + basename + strftime("%Y%m%d-%H%M.") + ext
+  
+  def create(self, dire="logs", basename="log-", ext="log"):
+    self.lineno = 0
+    self.handle = open(dire + "/" + basename + strftime("%Y%m%d-%H%M.") + ext, 'a')
+
+  def open(self, filename):
+    self.filename = filename
+    self.handle = open(filename, 'r')
+  
+  def write(self, str):
+    self.lineno = self.lineno + 1
+    self.handle.write(str + "\n")
+  
+  def read(self):
+    self.lineno = self.lineno + 1
+    return self.handle.read()
+    
+  def close(self):
+    self.handle.close()
+  
+  def lines(self):
+    return self.lineno
+
+#
+# CSV logging
+#
+class CSVlog(LOGlog):
+  def __init__(self):
+    super().__init__()
+    self.header = ""
+    
+  def create(self, dire="logs", basename="log-"):
+    super().create(dire, basename, "csv")
+
+  def open(self, filename):
+    self.reader = csv.reader(super().filename)
+    super().open(filename)
+  
+  def read(self):
+    return self.reader.next(super().handle)
+  
+  def readall(self, csvfile):
+    data = csv.reader(csvfile)
+    csv.close()
+    return list(data)
+
+#
+# JSON logging
+#
+class JSONlog(LOGlog):
+  def __init__(self):
+    super().__init__()
+  
+  def create(self, dire="logs", basename="log-"):
+    super().create(dire, basename, "json")
+  
+  def open(self, filename):
+    super().open(filename)
+
+  def write(self, data):
+    data['timestamp'] = time()
+    super().write(json.dumps(data))
+  
+  def read(self, ):
+    return json.loads(super().read())

packages/PACKAGES.txt

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+
+Required Python3 packages:
+==========================
+subversion
+python3-all
+python3-pil.imagetk
+spyder3
+

packages/packages.sh

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+#!/bin/bash
+
+# Python 3
+echo "Python 3 packages:"
+sudo apt-get -y --ignore-missing install python3-all python3-dev python3-tk idle3 python3-pip python3-pyqt5 python3-serial python3-can python3-protobuf python3-numpy python3-pil.imagetk python3-gi
+
+# Python addons
+sudo -H pip install --upgrade pip
+sudo -H pip install configparser pyside2 pycrate
+
+# cleanup
+sudo apt-get autoremove
+sudo apt-get clean
+