Teradata Package for Python Function Reference | 17.10 - is_empty - Teradata Package for Python - Look here for syntax, methods and examples for the functions included in the Teradata Package for Python.
Teradata® Package for Python Function Reference
- Product
- Teradata Package for Python
- Release Number
- 17.10
- Published
- April 2022
- Language
- English (United States)
- Last Update
- 2022-08-19
- lifecycle
- previous
- Product Category
- Teradata Vantage
- teradataml.geospatial.geodataframe.GeoDataFrame.is_empty
- DESCRIPTION:
Tests if a Geometry value corresponds to the empty set.
PARAMETERS:
None
SUPPORTED GEOMETRY TYPES:
All Geometry types.
RAISES:
TypeError, ValueError, TeradataMlException
RETURNS:
GeoDataFrame
Resultant column contains:
* 1, if the geometry is empty
* 0, if the geometry is not empty
EXAMPLES:
from teradataml import GeoDataFrame, load_example_data
# Load example data.
load_example_data("geodataframe", "sample_shapes")
# Create a GeoDataFrame.
gdf = GeoDataFrame("sample_shapes")
gdf = gdf.select(["skey", "polygons", "linestrings"])
gdf
# Example 1: Check if geometries in column 'polygons' is empty or not.
# Let's check where the GeoDataFrame.geometry property points to.
print(gdf.geometry.name)
# Note: By default, GeoDataFrame.geometry property points to the first geometry column,
# in this case it is 'polygons'. Thus, no need to set it again.
gdf.is_empty