Geometry explode to array（几何体拆解为数组（Geometry explode to array））¶
Supported in: Batch, Faster, Streaming
Converts a geometry to an array of its constituent simple geometries.
Expression categories: Geospatial
Declared arguments¶
- Expression: The geometry to explode.
Expression\
Output type: Array\
Examples¶
Example 1: Base case¶
Argument values:
- Expression:
geometry
| geometry | Output |
|---|---|
| {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]} | [ {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]} ] |
| {"type":"MultiPolygon","coordinates":[[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]],[[[5.0,5.0],[5.0,6.0],[6.0,6.0],[6.0,5.0],[5.0,5.0]]]]} | [ {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]}, {"type":"Polygon","coordinates":[[[5.0,5.0],[5.0,6.0],[6.0,6.0],[6.0,5.0],[5.0,5.0]]]} ] |
Example 2: Base case¶
Argument values:
- Expression:
geometry
| geometry | Output |
|---|---|
| {"type": "GeometryCollection", "geometries": [{"type": "MultiPoint", "coordinates": [[0, 0], [1, 1]]}, {"type": "Polygon", "coordinates": [[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]]}]} | [ {"type":"Point","coordinates":[0.0,0.0]}, {"type":"Point","coordinates":[1.0,1.0]}, {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]} ] |
Example 3: Null case¶
Argument values:
- Expression:
geometry
| geometry | Output |
|---|---|
| null | null |
中文翻译¶
几何体拆解为数组（Geometry explode to array）¶
支持：批处理（Batch）、快速处理（Faster）、流处理（Streaming）
将几何体（geometry）转换为其组成简单几何体（simple geometries）的数组。
表达式类别： 地理空间（Geospatial）
声明的参数¶
- 表达式（Expression）： 要拆解的几何体。
表达式\
输出类型： 数组\
示例¶
示例 1：基础情况¶
参数值：
- 表达式：
geometry
| geometry | 输出 |
|---|---|
| {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]} | [ {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]} ] |
| {"type":"MultiPolygon","coordinates":[[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]],[[[5.0,5.0],[5.0,6.0],[6.0,6.0],[6.0,5.0],[5.0,5.0]]]]} | [ {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]}, {"type":"Polygon","coordinates":[[[5.0,5.0],[5.0,6.0],[6.0,6.0],[6.0,5.0],[5.0,5.0]]]} ] |
示例 2：基础情况¶
参数值：
- 表达式：
geometry
| geometry | 输出 |
|---|---|
| {"type": "GeometryCollection", "geometries": [{"type": "MultiPoint", "coordinates": [[0, 0], [1, 1]]}, {"type": "Polygon", "coordinates": [[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]]}]} | [ {"type":"Point","coordinates":[0.0,0.0]}, {"type":"Point","coordinates":[1.0,1.0]}, {"type":"Polygon","coordinates":[[[0.0,0.0],[0.0,1.0],[1.0,1.0],[1.0,0.0],[0.0,0.0]]]} ] |
示例 3：空值情况¶
参数值：
- 表达式：
geometry
| geometry | 输出 |
|---|---|
| null | null |