Initial commit with project structure and base scripts

requirements.txt

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+cantools
+matplotlib

src/can_parser.py

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+import cantools
+import csv
+
+def read_log_file(log_file):
+    can_messages = []
+    with open(log_file, 'r') as file:
+        reader = csv.reader(file, delimiter=' ')
+        for row in reader:
+            can_id = int(row[1], 16)
+            data = bytes.fromhex(row[2])
+            timestamp = float(row[0])
+            can_messages.append((timestamp, can_id, data))
+    return can_messages
+
+def decode_signals(can_messages, dbc_file):
+    db = cantools.database.load_file(dbc_file)
+    signal_data = {}
+    for timestamp, can_id, data in can_messages:
+        try:
+            message = db.get_message_by_frame_id(can_id)
+            decoded_signals = message.decode(data)
+            for signal_name, value in decoded_signals.items():
+                if signal_name not in signal_data:
+                    signal_data[signal_name] = []
+                signal_data[signal_name].append((timestamp, value))
+        except KeyError:
+            continue
+    return signal_data

src/main.py

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+from can_parser import read_log_file, decode_signals
+from plot_signals import plot_signals
+
+def main():
+    dbc_file = 'data/your_dbc_file.dbc'
+    log_file = 'data/your_log_file.txt'
+
+    can_messages = read_log_file(log_file)
+    signal_data = decode_signals(can_messages, dbc_file)
+    plot_signals(signal_data)
+
+if __name__ == '__main__':
+    main()

src/plot_signals.py

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+import matplotlib.pyplot as plt
+
+def plot_signals(signal_data):
+    for signal_name, data in signal_data.items():
+        timestamps, values = zip(*data)
+        plt.figure()
+        plt.plot(timestamps, values)
+        plt.title(signal_name)
+        plt.xlabel('Time (s)')
+        plt.ylabel(signal_name)
+        plt.show()