SYNC COMMIT

Working on plots.py.

analysis/db_connector.py

@@ -1,11 +1,13 @@
 import logging
 
+import paramiko.util
 import sqlalchemy
 from sshtunnel import SSHTunnelForwarder
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 from config import SSH_HOST, SSH_USERNAME, SSH_PASSWORD, DB_NAME, DB_USER, DB_PASSWORD, DB_HOST, DB_PORT, SSH_PORT
 
+logging.getLogger("paramiko").setLevel(logging.WARNING)
 
 logging.basicConfig(level=logging.DEBUG, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
 logger = logging.getLogger('db_connector.py')

analysis/db_utils.py

@@ -41,6 +41,9 @@ def get_view(view_name, rows="*"):
     finally:
         remote_db.close()
 
+def query_table(table_name):
+    pass
+
 
 # Specialized DB methods ==============================================================================================
 def create_heat_view():

analysis/map.py

@@ -93,7 +93,7 @@ def create_heat_map_toggle(folium_map):
     add_heat_year_toggle(heat_gdf, folium_map)
 
     add_bike_heat_toggle(folium_map)
-    add_ped_heat_map(folium_map)
+    add_ped_heat_toggle(folium_map)
     # Add signald speeds data
     add_signaled_speeds(folium_map)
 
@@ -217,7 +217,7 @@ def add_heat_year_toggle(heat_gdf, folium_map, name="All"):
             max_opacity=0.8,
             blur=10,
             show=False,
-            name=f'Accidents involving {name} in {year}'
+            name=f'{name} in {year}'
         )
 
         heatmap_layer.add_to(folium_map)
@@ -229,7 +229,7 @@ def add_bike_heat_toggle(folium_map):
     add_heat_year_toggle(heat_gdf, folium_map, name="motorcycles")
 
 
-def add_ped_heat_map(folium_map):
+def add_ped_heat_toggle(folium_map):
     pedestrian_heat_view_data = get_view("pedestrianheat")
     heat_gdf = gpd.GeoDataFrame(pedestrian_heat_view_data, columns=['latitude', 'longitude', 'year'])
     add_heat_year_toggle(heat_gdf, folium_map, name="pedestrians")

analysis/plots.py

@@ -0,0 +1,77 @@
+import logging
+
+from db_connector import RemoteDB
+import matplotlib.pyplot as plt
+import pandas as pd
+import plotly.express as px
+import kaleido
+import numpy as np
+
+logging.getLogger("matplotlib").setLevel(logging.WARNING)
+
+# TODO
+def plt_acc_by_year(db):
+    acc_year_sql = """
+    SELECT COUNT(*), accidentyear FROM accidents
+    GROUP BY accidentyear
+    ORDER BY accidentyear;
+    """
+    result = db.execute_query(acc_year_sql)
+    result_df = pd.DataFrame(result)
+    plt.barh(result_df['accidentyear'],result_df['count'])
+    plt.ylabel('Year')
+    plt.xlabel('No. of Accidents')
+    plt.show()
+
+
+def plt_acc_by_weekday(db):
+    acc_weekday_sql = f"""
+    SELECT COUNT(*) AS count, accidentweekday_en AS weekday
+    FROM accidents
+    GROUP BY accidentweekday_en
+    ORDER BY COUNT(*);
+    """
+
+    result = db.execute_query(acc_weekday_sql)
+    result_df = pd.DataFrame(result)
+
+    plt.barh(result_df['weekday'], result_df['count'])
+    plt.ylabel('Weekday')
+    plt.xlabel('No. of Accidents')
+    plt.show()
+
+
+
+
+def plt_acc_by_daytime(db):
+    acc_weekday_sql = f"""
+    SELECT COUNT(*) AS count, accidenthour AS hour
+    FROM accidents
+    GROUP BY accidenthour
+    ORDER BY COUNT(*);
+    """
+
+    result = db.execute_query(acc_weekday_sql)
+    result_df = pd.DataFrame(result)
+
+    plt.barh(result_df['hour'], result_df['count'])
+    plt.ylabel('hour')
+    plt.xlabel('No. of Accidents')
+    plt.show()
+
+    fig = px.bar(result_df, y='hour', x='count', orientation='h')
+    fig.write_image("fig/acc_by_day.png")
+    fig.write_html("html/acc_by_day.html")
+
+
+if __name__ == "__main__":
+    remote_db = RemoteDB()
+    try:
+        #plt_acc_by_year(remote_db)
+        #plt_acc_by_weekday(remote_db)
+        plt_acc_by_daytime(remote_db)
+    except Exception as e:
+        print(f"Exception {e} in plots.py")
+    finally:
+        remote_db.close()
+

analysis/tester.ipynb

@@ -306,20 +306,17 @@
     "# Your Folium map\n",
     "map = folium.Map(location=[47.368650, 8.539183], zoom_start=13, tiles=\"cartodb positron\")\n",
     "\n",
-    "# Example WKB geometry\n",
     "wkb_geometry = '0105000020E6100000010000000102000000030000001C261AA4E0112140605793A7ACB047400EA2B5A2CD11214058E1968FA4B047406F47382D78112140983446EBA8B04740'\n",
     "\n",
-    "# Convert WKB to Shapely Geometry\n",
     "shapely_geometry = wkb.loads(wkb_geometry, hex=True)\n",
     "\n",
-    "# Convert Shapely Geometry to GeoJSON\n",
     "geojson_geometry = json.loads(json.dumps(shapely.geometry.mapping(shapely_geometry)))\n",
     "\n",
-    "# Add to Folium Map\n",
+    "\n",
     "folium.GeoJson(geojson_geometry).add_to(map)\n",
     "\n",
-    "# Save or show map\n",
-    "map.save(\"map.html\")  # or use map.show() in a Jupyter environment\n"
+    "\n",
+    "map.save(\"map.html\") \n"
    ],
    "metadata": {
     "collapsed": false,