Teradata Package for Python Function Reference | 20.00 - perimeter - 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 - 20.00

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Teradata Package for Python
Release Number
20.00
Published
March 2024
Language
English (United States)
Last Update
2024-04-10
dita:id
TeradataPython_FxRef_Enterprise_2000
Product Category
Teradata Vantage
teradataml.geospatial.geodataframecolumn.GeoDataFrameColumn.perimeter
DESCRIPTION:
    Returns the boundary length of an ST_Polygon, or the sum of the boundary
    lengths of the component polygons of an ST_MultiPolygon.
 
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 ignored in method
        calculations.
 
RAISES:
    TypeError, ValueError, TeradataMlException
 
RETURNS:
    GeoDataFrameColumn
 
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
 
    # Example 1: Get the perimeter of all geometries in column 'polygons'.
    gdf.assign(res=gdf.polygons.perimeter)
 
    # Example 2: Filter the rows where perimeter of polygon is 80.
    gdf[gdf.polygons.perimeter == 80]