From 826ab3d49d351afab34a0bdfe5557f7734a44013 Mon Sep 17 00:00:00 2001
From: umarkhan135 <khanm417@mcmaster.ca>
Date: Mon, 10 Mar 2025 16:59:33 -0400
Subject: [PATCH 1/2] visualizing all sensors

---
 vis_all.py | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 vis_all.py

diff --git a/vis_all.py b/vis_all.py
new file mode 100644
index 0000000..10f554f
--- /dev/null
+++ b/vis_all.py
@@ -0,0 +1,53 @@
+import sys
+import json
+import matplotlib.pyplot as plt
+from collections import defaultdict
+from datetime import datetime
+
+def main():
+    if len(sys.argv) != 2:
+        print(f"Usage: python {sys.argv[0]} <path_to_file>")
+        sys.exit(1)
+
+    file_path = sys.argv[1]
+
+    # Dictionary to store only the roll data (plus timestamps) for each sensor
+    sensor_data = defaultdict(lambda: {"timestamp": [], "roll": []})
+
+    with open(file_path, 'r') as file:
+        for line in file:
+            line = line.strip()
+            if not line:
+                continue
+            record = json.loads(line)
+
+            timestamp = datetime.strptime(record['timestamp'], "%Y-%m-%d %H:%M:%S.%f")
+
+            for sensor in record['sensors']:
+                loc = sensor['location']
+                sensor_data[loc]['timestamp'].append(timestamp)
+                sensor_data[loc]['roll'].append(sensor['euler']['roll'])
+
+    # You can adjust this order or remove sensors if needed
+    sensor_order = [
+        "Left Knee", "Left Ankle", 
+        "Right Ankle", "Right Hip", 
+        "Right Knee", "Left Hip"
+    ]
+
+    # Plot all sensors' roll data on a single plot
+    plt.figure(figsize=(10, 6))
+    for loc in sensor_order:
+        plt.plot(sensor_data[loc]['timestamp'], sensor_data[loc]['roll'], label=loc)
+
+    plt.title("Roll Data Over Time for Each Sensor")
+    plt.xlabel("Time")
+    plt.ylabel("Roll (degrees)")
+    plt.legend()
+    plt.grid(True)
+    plt.tight_layout()
+    plt.show()
+
+if __name__ == "__main__":
+    main()
+

From bdf392428456432080899b307e4088f2e313ca25 Mon Sep 17 00:00:00 2001
From: umarkhan135 <khanm417@mcmaster.ca>
Date: Mon, 10 Mar 2025 17:34:04 -0400
Subject: [PATCH 2/2] subsample data to get a general understanding of what
 data looks like, for more precise depiction use other script

---
 vis_all.py | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/vis_all.py b/vis_all.py
index 10f554f..25a09d1 100644
--- a/vis_all.py
+++ b/vis_all.py
@@ -28,19 +28,25 @@ def main():
                 sensor_data[loc]['timestamp'].append(timestamp)
                 sensor_data[loc]['roll'].append(sensor['euler']['roll'])
 
-    # You can adjust this order or remove sensors if needed
+    # Adjust this order if needed
     sensor_order = [
         "Left Knee", "Left Ankle", 
         "Right Ankle", "Right Hip", 
         "Right Knee", "Left Hip"
     ]
 
-    # Plot all sensors' roll data on a single plot
-    plt.figure(figsize=(10, 6))
+    # Subsampling factor: plot every 10th point, for example
+    subsample_factor = 10
+
+    plt.figure(figsize=(20, 6))
+
     for loc in sensor_order:
-        plt.plot(sensor_data[loc]['timestamp'], sensor_data[loc]['roll'], label=loc)
+        # Take every 10th point
+        timestamps = sensor_data[loc]['timestamp'][::subsample_factor]
+        rolls = sensor_data[loc]['roll'][::subsample_factor]
+        plt.plot(timestamps, rolls, label=loc)
 
-    plt.title("Roll Data Over Time for Each Sensor")
+    plt.title("Roll Data Over Time (Subsampled)")
     plt.xlabel("Time")
     plt.ylabel("Roll (degrees)")
     plt.legend()
@@ -50,4 +56,3 @@ def main():
 
 if __name__ == "__main__":
     main()
-