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# ST_ExtentBasedSubDivide

Return a list of geometries divided based of given extent limit.

<img src="https://mintcdn.com/wherobots/fqh3gPDE0J25Lra_/images/sql-functions/ST_ExtentBasedSubDivide/ST_ExtentBasedSubDivide.svg?fit=max&auto=format&n=fqh3gPDE0J25Lra_&q=85&s=b6913b90e94412babbd690c8abb0f301" alt="ST_ExtentBasedSubDivide" width="500" height="300" data-path="images/sql-functions/ST_ExtentBasedSubDivide/ST_ExtentBasedSubDivide.svg" />

## Signatures

```sql theme={"system"}
ST_ExtentBasedSubDivide(geom: Geometry, maxWidth: Double, maxHeight: Double)
```

## Parameters

<ParamField body="geom" type="Geometry" required>
  The input geometry.
</ParamField>

<ParamField body="maxWidth" type="Double" required>
  The max width value.
</ParamField>

<ParamField body="maxHeight" type="Double" required>
  The max height value.
</ParamField>

## Example

```sql theme={"system"}
SELECT ST_ExtentBasedSubDivide(ST_GeomFromText("POLYGON((35 10, 45 45, 15 40, 10 20, 35 10), (20 30, 35 35, 30 20, 20 30))"), 10, 10)
```

```
[
  POLYGON ((10 10, 10 18.75, 18.75 18.75, 18.75 10, 10 10)),
  POLYGON ((18.75 10, 18.75 18.75, 27.5 18.75, 27.5 10, 18.75 10)),
  POLYGON ((10 18.75, 10 27.5, 18.75 27.5, 18.75 18.75, 10 18.75)),
  POLYGON ((18.75 18.75, 18.75 27.5, 27.5 27.5, 27.5 18.75, 18.75 18.75)),
  POLYGON ((27.5 10, 27.5 18.75, 36.25 18.75, 36.25 10, 27.5 10)),
  POLYGON ((36.25 10, 36.25 18.75, 45 18.75, 45 10, 36.25 10)),
  POLYGON ((27.5 18.75, 27.5 27.5, 36.25 27.5, 36.25 18.75, 27.5 18.75)),
  POLYGON ((36.25 18.75, 36.25 27.5, 45 27.5, 45 18.75, 36.25 18.75)),
  POLYGON ((10 27.5, 10 36.25, 18.75 36.25, 18.75 27.5, 10 27.5)),
  POLYGON ((18.75 27.5, 18.75 36.25, 27.5 36.25, 27.5 27.5, 18.75 27.5)),
  POLYGON ((10 36.25, 10 45, 18.75 45, 18.75 36.25, 10 36.25)),
  POLYGON ((18.75 36.25, 18.75 45, 27.5 45, 27.5 36.25, 18.75 36.25)),
  POLYGON ((27.5 27.5, 27.5 36.25, 36.25 36.25, 36.25 27.5, 27.5 27.5)),
  POLYGON ((36.25 27.5, 36.25 36.25, 45 36.25, 45 27.5, 36.25 27.5)),
  POLYGON ((27.5 36.25, 27.5 45, 36.25 45, 36.25 36.25, 27.5 36.25)),
  POLYGON ((36.25 36.25, 36.25 45, 45 45, 45 36.25, 36.25 36.25))
]
```