fixing label geometries

Author: Nicholas Weir

docs/tutorials/pystac-spacenet-tutorial.ipynb

@@ -312,17 +312,14 @@
     "        params = {\n",
     "            'id': item.id + '-labels',\n",
     "            'bbox': item.bbox,\n",
+    "            'geometry': box(*item.bbox).__geo_interface__,\n",
     "            'datetime': item.datetime,\n",
     "            'properties': {},\n",
     "            'label_description': 'Building labels for scene {}'.format(item.id),\n",
     "            'label_type': 'vector',\n",
     "            'label_properties': 'partialBuilding'\n",
     "        }\n",
     "        \n",
-    "        with open(label_uri) as gj:\n",
-    "            features = json.load(gj)\n",
-    "        geom_collection = GeometryCollection([shape(feature['geometry']) for feature in features['features']])\n",
-    "        params['geometry'] = geom_collection.__geo_interface__\n",
     "        label_item = LabelItem(**params)\n",
     "        \n",
     "        label_item.add_asset(key='label', asset=Asset(href=label_uri, media_type='application/geo+json'))\n",