Teradata Package for Python Function Reference | 17.10 - set_z - 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.set_z = set_z(self, zcoord)
- DESCRIPTION:
Set the Z coordinate of an ST_Point value.
Note:
* This method can be used to convert a 2D point to a 3D point if a
zcoord argument is passed.
PARAMETERS:
zcoord:
Required Argument.
Specifies a value to the new Z coordinate of the ST_Point value.
Types: float, int, str, ColumnExpression
SUPPORTED GEOMETRY TYPES:
ST_Point
RAISES:
TypeError, ValueError, TeradataMlException
RETURNS:
GeoDataFrameColumn
EXAMPLES:
from teradataml import GeoDataFrame, load_example_data
from teradataml import Point, LineString, Polygon, GeometryCollection
# Load example data.
load_example_data("geodataframe", "sample_shapes")
# Create a GeoDataFrame.
geodf = GeoDataFrame("sample_shapes")
print(geodf)
# Example 1: Set the Z coordinate of the ST_Point geometries in column 'points'.
# Let's select only few columns from GeoDataFrame.
points_df = geodf.select(["skey", "points"])[geodf.skey.isin([1001, 1002, 1003])]
points_df.assign(res = points_df.points.set_z(zcoord=1000))