Teradata Package for Python Function Reference | 17.10 - geom_equals - 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
- Product Category
- Teradata Vantage
- teradataml.geospatial.geodataframe.GeoDataFrame.geom_equals = geom_equals(self, geom_column)
- DESCRIPTION:
Tests if a Geometry value is spatially equal to another Geometry value.
Note:
* Using a geospatial index can greatly improve the performance of
queries that use this method.
PARAMETERS:
geom_column:
Required Argument.
Specifies the other Geometry value.
Types: str, ColumnExpression, GeometryType
SUPPORTED GEOMETRY TYPES:
All Geometry types.
RAISES:
TypeError, ValueError, TeradataMlException
RETURNS:
GeoDataFrame
Resultant column contains:
* 1, if the geometries are spatially equal
* 0, if the geometries are not spatially equal
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.
geodf = GeoDataFrame("sample_shapes")
print(geodf)
# Let's select only few columns from GeoDataFrame.
points_lines = geodf.select(["skey", "points", "linestrings"])
# Example 1: Check whether the ST_Point/ST_MultiPoint type geometries in column
# 'points' equals geometry specified by a GeometryType object - Point.
# Create an object of Point GeometryType.
p1 = Point(10, 20)
# Pass the Point() GeometryType object as input to "geom_column" argument.
points_lines.geom_equals(geom_column=p1)
# Example 2: Check whether the ST_Linestring/ST_MultiLinestring type geometries in column
# 'linestrings' equals geometry specified by a GeometryType object - LineString.
# Set the geometry property of GeoDataFrame to point to 'linestrings' column.
points_lines.geometry = points_lines.linestrings
# Create an object of Linestring GeometryType.
l1 = LineString([(1,3), (3,0), (0,1)])
# Pass the LineString() GeometryType object as input to "geom_column" argument.
points_lines.geom_equals(geom_column=l1)