Fix: functions for visualization now works

air_traffic/visual.py

@@ -7,18 +7,32 @@ def draw_map(boundary=[111, 117.5, 19, 25.5]):
     """
     Create plt ax obtject with cartopy map on the given boundary box.
     """
-    
-    ax = plt.axes(projection=ccrs.PlateCarree())
-    ax.set_extend(boundary, ccrs.PlateCarree())
+
+    fig, ax = plt.subplots(subplot_kw={"projection": ccrs.PlateCarree()})
+    ax.set_extent(boundary, ccrs.PlateCarree())
 
     # Add map features
     ax.add_feature(cfeature.LAND)
     ax.add_feature(cfeature.OCEAN)
 
     # Draw gridlines
     gridlines = ax.gridlines(draw_labels=True, zorder=0,
-                         linestyle="dashed", linewidth=0.5, color="dimgrey")
+                             linestyle="dashed", linewidth=0.5, 
+                             color="dimgrey")
     gridlines.top_labels = False
     gridlines.right_labels = False
 
-    return ax
+    return fig, ax
+
+
+def get_hkia_coordinates():
+
+    lat = 22.308046
+    lon = 113.918480
+
+    return lat, lon
+
+
+def get_fir_corners():
+
+    return [111, 117.5, 19, 25.5]