ST_Segmentize

ST_Segmentize takes a linestring column and a numeric column or value representing maximum segment length and returns an array column. This function creates an array of linestrings from the input linestring by breaking the input linestring into segments that are shorter than or equal to the maximum length specified. The maximum segment length is in the same units as the input geometry.

Function	Syntax
Python	`segmentize(linestring, max_segment_length=2)`
SQL	`ST_Segmentize(linestring, max_segment_length)`

For more details, go to the GeoAnalytics Engine API reference for segmentize.

Examples

Python

SQL

Use dark colors for code blocksCopy
from geoanalytics.sql import functions as ST, Linestring

df = spark.createDataFrame([(Linestring([[[0, 0], [1, 0], [2, 0], [3, 0], [4, 0]]]),)],["linestring"])

df.select(ST.segmentize("linestring", max_segment_length=2).alias("segmentize")).show(truncate=False)

Result
Use dark colors for code blocksCopy
+------------------------------------------------------------------+
|segmentize                                                        |
+------------------------------------------------------------------+
|[{"paths":[[[0,0],[1,0],[2,0]]]}, {"paths":[[[2,0],[3,0],[4,0]]]}]|
+------------------------------------------------------------------+

Version table

Release	Notes
1.0.0	Function introduced

ST_Segmentize

Examples

Version table

Related topics