注意:以下翻译的准确性尚未经过验证。这是使用 AIP ↗ 从原始英文文本进行的机器翻译。
支持于: 批处理, 流处理
将知名文本 (WKT) 字符串转换为几何逻辑类型。无效的 WKT 输入将返回为 null。非必填地提供一个源坐标系统标识符,如果 WKT 尚未使用 WGS 84,可用于从源坐标系统转换到 WGS 84。
表达式类别: 地理空间
输出类型: 几何
参数值:
wkt
wkt | 输出 |
---|---|
POINT (3.0 5.0 2.0) | {"type":"Point","coordinates":[3.0, 5.0, 2.0]} |
POLYGON ((0.0 0.0, 1.0 0.0, 0.0 1.0, 0.0 0.0)) | {"type":"Polygon","coordinates":[[[0.0,0.0],[1.0,0.0],[0.0,1.0],[0.0,0.0]]]} |
LINESTRING (0.0 0.0, 1.0 0.0) | {"type":"LineString","coordinates":[[0.0,0.0],[1.0,0.0]]} |
参数值:
wkt
wkt | 输出 |
---|---|
POINT (320000.0 4300000.0 2.0) | {"type":"Point","coordinates":[-77.07368071728229,38.83040844313318, 2.0]} |
POLYGON ((320000.0 4300000.0, 320100.0 4300000.0, 320000.0 4300100.0, 320000.0 4300000.0)) | {"type":"Polygon","coordinates":[[[-77.07368071728229,38.83040844313318],[-77.0725293738795,38.83042888342659],[-77.07370685720375,38.83130901341597],[-77.07368071728229,38.83040844313318]]]} |
LINESTRING (320000.0 4300000.0, 320100.0 4300000.0) | {"type":"LineString","coordinates":[[-77.07368071728229,38.83040844313318],[-77.0725293738795,38.83042888342659]]} |