fix(draw): use circle patches instead of scatter plot

draw.py

@@ -1,5 +1,7 @@
 import fire
 import matplotlib.pyplot as plt
+from matplotlib.collections import PatchCollection
+from matplotlib.patches import Circle, Patch
 from utils import logger
 from constants import BIOMES
 
@@ -12,25 +14,31 @@ def draw(df, path=None):
     biome_numbers = df['biome_num'].unique()
 
     for i, row in df.iterrows():
+        p = (row.longitude, row.latitude)
         if row.biome_num in biomes:
-            biomes[row.biome_num]['x'].append(row.longitude)
-            biomes[row.biome_num]['y'].append(row.latitude)
+            biomes[row.biome_num].append(p)
         else:
-            biomes[row.biome_num] = { 'x': [row.longitude], 'y': [row.latitude] }
+            biomes[row.biome_num] = [p]
 
     ax = plt.axes(projection=ccrs.PlateCarree())
     ax.stock_img()
 
-
+    legend_handles = []
     for n in biome_numbers:
-        xs = biomes[n]['x']
-        ys = biomes[n]['y']
-        scatter = ax.scatter(xs, ys, s=4, c=BIOMES[n]['color'], transform=ccrs.PlateCarree())
-        scatter.set_label(BIOMES[n]['name'])
+        color = BIOMES[n]['color']
 
-    ax.legend()
+        patches = [Circle(p, radius=0.4) for p in biomes[n]]
+        collection = PatchCollection(patches, color=color)
+
+        legend_handles.append(Patch(color=color, label=BIOMES[n]['name']))
+        ax.add_collection(collection)
+
+    ax.legend(handles=legend_handles, loc='center left', bbox_to_anchor=(1, 0.5), markerscale=4)
+    
+    ax.autoscale_view()
     figure = plt.gcf()
-    figure.set_size_inches(20, 18)
+    figure.set_size_inches(23.22, 13)
+    figure.subplots_adjust(left=0.02, right=0.79)
     if path:
         plt.savefig(path)
     else: