在这种情况下，这将是nc %>% st_filter(ash_point, .predicates = st_intersects)您还可以将.predic...
然而,如果我们使用st_intersects,我们只会得到一个逻辑结果告诉我们是否确实存在r和s之间的交集。如果我们尝试使用它来对r进行子集划分以查找交集,我们不会得到相交的形状,而只会得到原始矩形: r[which(unlist(st_intersects(s, r)) == 1)] #> Geometry set for 1 feature #> geometry type: POLYGON #> dim...
>pol * 2 + pt POLYGON ((0 1, 2 1, 2 3, 0 3, 0 1)) st_join之类的空间连接函数,允许用户传递一个与st_intersects兼容的连接函数,从而使应用于连接的空间谓词完全可定制。 4. 人性化设计。 基于过去10年编写和维护sp包的经验,我们一直保持sf包的简介和易学。尽可能抽象通用方法,来保持底层代码占用...
我想找出这些点在哪里(状态)。我搜索了一些链接，得到了我应该使用sf::st_intersects的线索，但事实证明...
Tried setting the precision; using st_make_valid; filter only valid geometries but in the end, I could not get st_intersection it to work with the very (very) bad shapefiles that I've got. What I ended up doing was first run st_intersects() to get a list of the polygons that ...
st_join(x, y, join = st_intersects, ..., suffix = c(".x", ".y"), left = TRUE, largest = FALSE ) 1. 2. 3. 参数说明: 输入对象x和y均需是sf格式; join参数为判断点线面位置关系的函数,...为继承自这些函数的参数; 工作原理:以x和y中的几何要素为最小单位,按照参数join引用的空间位...
ST_Intersects(geometry1,geometry2 ) 參數 geometry1 ST_Geometry 類型的值,或代表幾何形狀的其中一個子類型,以測試與 geometry2的交集。 geometry2 ST_Geometry 類型的值或它的其中一個子類型,代表要測試與 geometry1交集的幾何形狀。 傳回類型 INTEGER 使用情形 ST_Intersects 採用兩個幾何形狀作為輸入參數,如果...
binary predicatesst_contains,st_contains_properly,st_convered_by,st_covers,st_crosses,st_disjoint,st_equals,st_equals_exact,st_intersects,st_is_within_distance,st_within,st_touches,st_overlapsbinary operationsst_relate,st_distanceunary operationsst_dimension,st_area,st_length,st_is_longlat,st_is...
( rast_stars, as_points = FALSE, merge = FALSE, na.rm = TRUE ) # spatial join raster_sf with sf: rast_join_buff2 <- st_join( rast_sf, d_layer_buff, join = st_intersects, largest = TRUE ) #> Warning: attribute variables are assumed to be spatially constant throughout #> all...
基本概念数据类型模型WKT模型INDEXSURFACETRIANGLESTRIPTRIANGLEFANMESHGEOMSFMESHEWKT构造函数ST_MakeTextureST_MakeMaterial输入函数ST_MeshFromTextST_MeshGeomFromWKTST_MeshGeom...