Name
ST_InterpolatePoint — 返回最接近点的几何图形的内插度量。
Synopsis
float8 ST_InterpolatePoint(geometry line, geometry point);
描述
返回几何图形在与所提供的点接近的点处的测量尺寸值。
可用性：2.0.0
This function supports 3d and will not drop the z-index.
示例
SELECT ST_InterpolatePoint('LINESTRING M (0 0 0, 10 0 20)', 'POINT(5 5)');
st_interpolatepoint
---------------------
10