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| |
| # ST_SubDivideExplode |
| |
| Introduction: It works the same as ST_SubDivide but returns new rows with geometries instead of list. |
| |
| A minimum of 5 vertices is required for maxVertices parameter to form a closed box. |
| |
|  |
| |
| Format: `ST_SubDivideExplode(geom: Geometry, maxVertices: Integer)` |
| |
| Return type: `Geometry` |
| |
| Since: `v1.1.0` |
| |
| SQL Example |
| |
| Query: |
| |
| ```sql |
| SELECT ST_SubDivideExplode(ST_GeomFromText("LINESTRING(0 0, 85 85, 100 100, 120 120, 21 21, 10 10, 5 5)"), 5) |
| ``` |
| |
| Result: |
| |
| ``` |
| +-----------------------------+ |
| |geom | |
| +-----------------------------+ |
| |LINESTRING(0 0, 5 5) | |
| |LINESTRING(5 5, 10 10) | |
| |LINESTRING(10 10, 21 21) | |
| |LINESTRING(21 21, 60 60) | |
| |LINESTRING(60 60, 85 85) | |
| |LINESTRING(85 85, 100 100) | |
| |LINESTRING(100 100, 120 120) | |
| +-----------------------------+ |
| ``` |
| |
| Using Lateral View |
| |
| Table: |
| |
| ``` |
| +-------------------------------------------------------------+ |
| |geometry | |
| +-------------------------------------------------------------+ |
| |LINESTRING(0 0, 85 85, 100 100, 120 120, 21 21, 10 10, 5 5) | |
| +-------------------------------------------------------------+ |
| ``` |
| |
| Query |
| |
| ```sql |
| select geom from geometries LATERAL VIEW ST_SubdivideExplode(geometry, 5) AS geom |
| ``` |
| |
| Result: |
| |
| ``` |
| +-----------------------------+ |
| |geom | |
| +-----------------------------+ |
| |LINESTRING(0 0, 5 5) | |
| |LINESTRING(5 5, 10 10) | |
| |LINESTRING(10 10, 21 21) | |
| |LINESTRING(21 21, 60 60) | |
| |LINESTRING(60 60, 85 85) | |
| |LINESTRING(85 85, 100 100) | |
| |LINESTRING(100 100, 120 120) | |
| +-----------------------------+ |
| ``` |
