Teradata Package for Python Function Reference | 17.10 - centroid - 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.geodataframecolumn.GeoDataFrameColumn.centroid
- DESCRIPTION:
Returns the mathematical centroid of an ST_Polygon or ST_MultiPolygon
value.
PARAMETERS:
None
SUPPORTED GEOMETRY TYPES:
ST_Polygon or ST_MultiPolygon.
Note:
This method can be called on 3D geometries (those that include Z
coordinates). However, the Z coordinate is dropped, and only x and y
coordinates are returned.
RAISES:
TypeError, ValueError, TeradataMlException
RETURNS:
GeoDataFrameColumn containing ST_Point Geometry values
EXAMPLES:
from teradataml import GeoDataFrame, load_example_data
from teradataml import Point, LineString, Polygon
# Load example data.
load_example_data("geodataframe", "sample_shapes")
# Create a GeoDataFrame.
gdf = GeoDataFrame("sample_shapes")
gdf = gdf.select(["skey", "polygons", "linestrings"])[gdf.skey.isin([1001, 1002, 1003])]
gdf
# Example 1: Get the centroid of all Polygon geometries in column 'polygons'.
gdf.assign(res=gdf.polygons.centroid)