broadcast-areas: (dev) add visualisation tool

Signed-off-by: Toby Lorne <toby.lornewelch-richards@digital.cabinet-office.gov.uk>

notifications_utils/broadcast_areas/plot-areas.py

@@ -0,0 +1,82 @@
+#!/usr/bin/env python
+
+import cartopy.crs as ccrs
+import cartopy.feature as cfeature
+import matplotlib.pyplot as plt
+import shapely.geometry as sgeom
+
+from random import sample
+
+from notifications_utils.safe_string import make_string_safe_for_id
+from repo import BroadcastAreasRepository
+
+
+def main():
+
+    print()  # noqa: T001
+    print("pick a library")  # noqa: T001
+    for library in BroadcastAreasRepository().get_libraries():
+        print("  ", library)  # noqa: T001
+
+    library = input("> ")
+    lid = make_string_safe_for_id(library)
+
+    features = []
+    simple_features = []
+
+    inp = ""
+    while True:
+        print()  # noqa: T001
+        print("pick an area, or press enter to skip")  # noqa: T001
+
+        all_areas = BroadcastAreasRepository().get_all_areas_for_library(lid)
+        some_areas = sample(all_areas, min(len(all_areas), 25))
+        for area in some_areas:
+            print("  ", area[1])  # noqa: T001
+
+        inp = input("> ")
+        if inp == "":
+            break
+
+        aid = make_string_safe_for_id(inp)
+        area = BroadcastAreasRepository().get_areas([aid])[0]
+
+        feature = area[-2]
+        feature_shape = sgeom.shape(feature["geometry"])
+        features.append(feature_shape)
+
+        simple_feature = area[-1]
+        simple_feature_shape = sgeom.shape(simple_feature["geometry"])
+        simple_features.append(simple_feature_shape)
+
+    print()  # noqa: T001
+    print("Plotting")  # noqa: T001
+
+    fig = plt.figure()
+    ax = fig.add_subplot(1, 1, 1, projection=ccrs.PlateCarree())
+    ax.set_extent([-20, 5, 40, 60], crs=ccrs.PlateCarree())
+
+    ax.add_feature(cfeature.LAND)
+    ax.add_feature(cfeature.OCEAN)
+    ax.add_feature(cfeature.COASTLINE)
+    ax.add_feature(cfeature.BORDERS, linestyle=':')
+
+    ax.add_geometries(
+        features,
+        ccrs.PlateCarree(),
+        facecolor='#00ff00',
+        alpha=0.25,
+    )
+
+    ax.add_geometries(
+        simple_features,
+        ccrs.PlateCarree(),
+        facecolor='#0000ff',
+        alpha=0.25,
+    )
+
+    plt.show()
+
+
+if __name__ == '__main__':
+    main()