Remove empty geometries in Source

cartoframes/viz/source.py

@@ -88,6 +88,12 @@ def __init__(self, source, credentials=None, geom_col=None, encode_data=True):
                 raise ValueError('No valid geometry found. Please provide an input source with ' +
                                  'a valid geometry or specify the "geom_col" param with a geometry column.')
 
+            # Checking empty geometries
+            has_empty_geoms = self.gdf.geometry.is_empty.any()
+            if has_empty_geoms:
+                raise ValueError('Empty geometries found. Please remove the empty geometries first: ' +
+                                 'gdf = gdf[~gdf.geometry.is_empty]')
+
             # Checking the uniqueness of the geometry type
             geometry_types = set(self.gdf.geom_type.unique())
             if geometry_types not in VALID_GEOMETRY_TYPES:

tests/unit/viz/test_source.py

@@ -73,6 +73,15 @@
     }
 }
 
+EMPTY = {
+    "type": "Feature",
+    "geometry": {
+        "type": "GeometryCollection",
+        "coordinates": None
+    },
+    "properties": {}
+}
+
 
 def setup_mocks(mocker):
     mocker.patch.object(ContextManager, 'compute_query')
@@ -171,3 +180,16 @@ def test_different_geometry_types_source_fail(self, features):
             Source(gdf)
 
         assert str(e.value).startswith('No valid geometry column types')
+
+    def test_empty_geometries(self):
+        geojson = {
+            "type": "FeatureCollection",
+            "features": [POINT, EMPTY]
+        }
+        gdf = gpd.GeoDataFrame.from_features(geojson)
+
+        with pytest.raises(ValueError) as e:
+            Source(gdf)
+
+        assert str(e.value).startswith(
+            'Empty geometries found. Please remove the empty geometries first')