构造一个pcpatch对象。

语法

pcpatch ST_makePatch(integer pcid,  float8[] vals);

参数

参数名称 描述
pcid schema的id，来自表point_cloud_formats。
float8[] float8数组，数组元素为schema的dimension维度数的整数倍。

示例

SELECT ST_asText(ST_MakePatch(1, ARRAY[-126.99,45.01,1,0, -126.98,45.02,2,0, -126.97,45.03,3,0]));
-------------------------------------------------
{"pcid":1,"pts":[
 [-126.99,45.01,1,0],[-126.98,45.02,2,0],[-126.97,45.03,3,0]
]}