try_to_geometry

Importante

Esta característica está en versión preliminar pública.

Analiza el valor binario o de cadena de entrada y devuelve el valor geometry correspondiente. None se devuelve si la entrada no es válida.

Para obtener la función SQL de Databricks correspondiente, consulte try_to_geometry function.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.try_to_geometry(col=<col>)

Parámetros

Parámetro	Tipo	Description
col	pyspark.sql.Column o str	Valor de cadena en formato WKT o GeoJSON, o un valor BINARY en formato WKB o EWKB que representa un valor Geometry .

Examples

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('POINT Z (3 4 5)',)], ['wkt'])
df.select(dbf.st_asewkt(dbf.try_to_geometry('wkt')).alias('result')).collect()

[Row(result='POINT Z (3 4 5)')]

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('{"type":"MultiPoint","coordinates":[[3,4,5]]}',)], ['geojson'])
df.select(dbf.st_asewkt(dbf.try_to_geometry('geojson')).alias('result')).collect()

[Row(result='SRID=4326;MULTIPOINT Z ((3 4 5))')]

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(bytes.fromhex('01ef0300000100000001e9030000000000000000084000000000000010400000000000001440'),)], ['wkb'])
df.select(dbf.st_asewkt(dbf.try_to_geometry('wkb')).alias('result')).collect()

[Row(result='GEOMETRYCOLLECTION Z (POINT Z (3 4 5))')]

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(bytes.fromhex('01020000a0110f000002000000000000000000084000000000000010400000000000001440000000000000084000000000000010400000000000001440'),)], ['ewkb'])
df.select(dbf.st_asewkt(dbf.try_to_geometry('ewkb')).alias('result')).collect()

[Row(result='SRID=3857;LINESTRING Z (3 4 5,3 4 5)')]

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('invalid wkt',)], ['wkt'])
df.select(dbf.st_asewkt(dbf.try_to_geometry('wkt')).alias('result')).collect()

[Row(result=None)]