Teradata Package for Python Function Reference | 17.10 - disjoint - 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.disjoint = disjoint(self, geom_column)
DESCRIPTION:
    Tests if a Geometry value is spatially disjoint from another Geometry
    value.
 
PARAMETERS:
    geom_column:
        Required Argument.
        Specifies the other Geometry value.
        Types: str, ColumnExpression, GeometryType
 
SUPPORTED GEOMETRY TYPES:
    All Geometry types.
    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
    Resultant column contains:
        * 1, if the geometries are spatially disjoint
        * 0, if the geometries are not spatially disjoint
 
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)
 
    # Let's select only few columns from GeoDataFrame.
    points_lines = geodf.select(["skey", "points", "linestrings"])
 
    # Example 1: Check whether the ST_Linestring/ST_MultiLinestring geometries in column
    #            'linestrings' and ST_Point/ST_MultiPoint geometries in column 'points'
    #            are disjoint or not.
    disjoint1_expr = points_lines.linestrings.disjoint(geom_column=points_lines.points)
    points_lines.assign(res = disjoint1_expr)
 
    # Example 2: Check whether the ST_Linestring/ST_MultiLinestring geometries in column
    #            'linestrings' and the geometry specified by a GeometryType object - LineString,
    #            are disjoint or not.
    # Create an object of Linestring GeometryType.
    l1 = LineString([(3, 1), (0,2)])
    # Pass the LineString() GeometryType object as input to "geom_column" argument.
    disjoint2_expr = points_lines.linestrings.disjoint(geom_column=l1)
    points_lines.assign(res = disjoint2_expr)
 
    # Example 3: Filter rows where ST_Linestring/ST_MultiLinestring geometries in column
    #            'linestrings' and ST_Point/ST_MultiPoint geometries in column 'points'
    #            are disjoint.
    disjoint1_expr = points_lines.linestrings.disjoint(geom_column=points_lines.points)
    points_lines[disjoint1_expr == 1]