ST_IsMeasured takes a geometry column and returns a boolean column. The output returns True if the geometry has an
m-value; otherwise, it returns False.
| Function | Syntax |
|---|---|
| Python | is |
| SQL | ST |
| Scala | is |
For more details, go to the GeoAnalytics Engine API reference for is_measured.
Examples
from geoanalytics.sql import functions as ST
data = [
('{"x": -0.126,"y": 51.504,"m": 187.73}',),
('{"x": -0.126,"y": 51.504}',)
]
df = spark.createDataFrame(data, ["esri_json"]) \
.withColumn("point", ST.point_from_esri_json("esri_json"))
df.select(ST.is_measured("point").alias("is_measured")).show()Result
+-----------+
|is_measured|
+-----------+
| true|
| false|
+-----------+Version table
| Release | Notes |
|---|---|
1.0.0 | Python and SQL functions introduced |
1.5.0 | Scala function introduced |