ST_Contains(geometry A, geometry B) returns true if geometry A contains geometry B ST_Crosses(geometry A, geometry B) returns true if geometry A crosses geometry B ST_Disjoint(geometry A , geometry B) returns true if the geometries do not “spatially intersect” ST_Distance(geometry A, geom...
ST_Intersects()方法的对立方法是ST_Disjoint(geometry A, geometry B)。 如果两个几何图形没有相交的部分,则它们不相交,反之亦然。 事实上测试"not intersect"(!ST_Intersects)通常比测试"disjoint"(ST_Disjoint)更有效,因为intersect测试会自动使用空间索引。 对于multipoint/polygon、multipoint/linestring、linestri...
ST_Disjoint(geometry A, geometry B),如果两个几何图形没有重合的部分,则它们不相交,反之亦然。事实上测试"not intersect"通常比测试"disjoint"更有效,因为intersect测试可以使用空间索引 对于multipoint/polygon、multipoint/linestring、linestring/linestring、linestring/polygon和linestring/multipolygon的比较,如果相交...
ST_Intersects()方法的对立方法是ST_Disjoint(geometry A, geometry B)。 如果两个几何图形没有共同的部分,则它们不相交,反之亦然。 事实上测试”not intersect“通常比测试”disjoint“更有效,因为intersect测试可以使用空间索引。 对于multipoint/polygon、multipoint/linestring、linestring/linestring、linestring/polyg...
For the purpose of this exercise, we can safely assume that a pole is pretty much vertical, so it won't intersect the boundary of the area. The problem is that sometimes the pole is exactly vertical. This query, the one I would like to do, does not succeed: SELECT ST_Intersects(ST_...
注意:ST_Disjoint和NOT ST_Intersects相同,但是NOT ST_Intersects由于使用空间索引速度更快 2.3 空间相接 空间相接即空间物体接触在一起但没有相交,使用的函数主要为: ST_Touches(A, B) Tests if two geometries have at least one point in common, but their interiors do not intersect ...
ST_Disjoint(geometry A, geometry B),如果两个几何图形没有重合的部分,则它们不相交,反之亦然。事实上测试”not intersect”通常比测试”disjoint”更有效,因为intersect测试可以使用空间索引 对于multipoint/polygon、multipoint/linestring、linestring/linestring、linestring/polygon和linestring/multipolygon的比较,如果...
(PostGIS等效项:包含7行几何图形的表)我看过ST_Intersect、ST_Union和ST_Collect,但找不到正确的组合。非常感谢您的帮助。 浏览12提问于2018-11-13得票数 2 1回答 基于postgis函数的几何分割 、 我有一个区域或国家的大几何图形,我想拆分它。基于postgis的ST_MEMSIZE功能,输出一个大几何图形的10个分割几何...
ST_Disjoint(geometry A, geometry B),如果两个几何图形没有重合的部分,则它们不相交,反之亦然。事实上测试"not intersect"通常比测试"disjoint"更有效,因为intersect测试可以使用空间索引 对于multipoint/polygon、multipoint/linestring、linestring/linestring、linestring/polygon和linestring/multipolygon的比较,如果相交...
ST_Intersection, Intersection The functions ST_Intersection and Intersection are compliments to ST_Intersects. What they return is that portion of geometry A and geometry B that is shared between the two geometries. If the two geometries do not intersect, then what is returned is an empty GEOMETR...