ST_Rotate

ST_Rotate takes a geometry column and a number and returns a geometry column. The result is the input geometry rotated counterclockwise by the angle specified. You can optionally provide a point column representing the rotation center. By default geometries will be rotated around the origin (0,0).

Function	Syntax
Python	`rotate(geometry, angle_in_radians, rotation_center=None)`
SQL	`ST_Rotate(geometry, angle_in_radians, rotation_center)`

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

Examples

Python

SQL

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

data = [
    ("MULTIPOINT (-117.55 34.33, -117.66 34.44, -117.66 34.22)",),
    ("LINESTRING (-116.89 33.96, -116.71 34.01, -116.66 34.08)", ),
    ("POLYGON ((-117.27 34.05, -117.22 33.91, -116.96 33.64, -116.66 33.71, -117.08 33.91, -117.16 34.09, -117.27 34.05))", )
]

df = spark.createDataFrame(data, ["wkt"]) \
     .withColumn("geometry", ST.geom_from_text("wkt", srid=4326))

df_rotate = df.withColumn("rotate", ST.rotate(geometry="geometry",
                                              angle_in_radians=1.57,
                                              rotation_center=ST.centroid("geometry")))

ax = df_rotate.st.plot("geometry", facecolor="none", edgecolor="red")
df_rotate.st.plot("rotate", ax=ax, facecolor="none", edgecolor="blue")

Plotted example for ST_Rotate — Plotted result for ST_Rotate.

Version table

Release	Notes
1.2.0	Function introduced

ST_Rotate

Examples

Version table

Related topics