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# ST_AddMeasure
Introduction: Computes a new geometry with measure (M) values linearly interpolated between start and end points. For geometries lacking M dimensions, M values are added. Existing M values are overwritten by the new values. Applies only to LineString and MultiLineString inputs.
![ST_AddMeasure](../../../image/ST_AddMeasure/ST_AddMeasure.svg "ST_AddMeasure")
Format: `ST_AddMeasure(geom: Geometry, measureStart: Double, measureEnd: Double)`
Return type: `Geometry`
Since: `v1.6.1`
SQL Example:
```sql
SELECT ST_AsText(ST_AddMeasure(
ST_GeomFromWKT('LINESTRING (0 0, 1 0, 2 0, 3 0, 4 0, 5 0)')
))
```
Output:
```
LINESTRING M(0 0 10, 1 0 16, 2 0 22, 3 0 28, 4 0 34, 5 0 40)
```