Function reference • sfnetworks

Construction The core of the package is a data structure that can be provided as input to both graph analytical functions of `tidygraph` and to spatial analytical functions of `sf`, without the need for conversion.
`sfnetwork()`	Create a sfnetwork
`as_sfnetwork()`	Convert a foreign object to a sfnetwork
`is.sfnetwork()`	Check if an object is a sfnetwork
Extensions The package extends the existing functionalities of `tidygraph` and `sf` with a set of functions specific for spatial network analysis.
`st_network_paths()`	Paths between points in geographical space
`st_network_cost()`	Compute a cost matrix of a spatial network
`st_network_join()`	Join two spatial networks based on equality of node geometries
`st_network_blend()`	Blend geospatial points into a spatial network
`st_network_bbox()`	Get the bounding box of a spatial network
`node_intersects()` `node_is_disjoint()` `node_touches()` `node_is_within()` `node_equals()` `node_is_covered_by()` `node_is_within_distance()`	Query nodes with spatial predicates
`node_X()` `node_Y()` `node_Z()` `node_M()`	Query node coordinates
`edge_intersects()` `edge_is_disjoint()` `edge_touches()` `edge_crosses()` `edge_is_within()` `edge_contains()` `edge_contains_properly()` `edge_overlaps()` `edge_equals()` `edge_covers()` `edge_is_covered_by()` `edge_is_within_distance()`	Query edges with spatial predicates
`edge_azimuth()` `edge_circuity()` `edge_length()` `edge_displacement()`	Query spatial edge measures
`to_spatial_contracted()` `to_spatial_directed()` `to_spatial_explicit()` `to_spatial_neighborhood()` `to_spatial_shortest_paths()` `to_spatial_simple()` `to_spatial_smooth()` `to_spatial_subdivision()` `to_spatial_subset()` `to_spatial_transformed()`	Spatial morphers for sfnetworks
Integration with sf The package enables smooth integration with `sf` by implementing several sfnetwork methods for sf functions.
`st_as_sf(<sfnetwork>)` `st_as_s2(<sfnetwork>)` `st_geometry(<sfnetwork>)` `st_geometry<-`(<sfnetwork>) `st_drop_geometry(<sfnetwork>)` `st_bbox(<sfnetwork>)` `st_coordinates(<sfnetwork>)` `st_is(<sfnetwork>)` `st_is_valid(<sfnetwork>)` `st_crs(<sfnetwork>)` `st_crs<-`(<sfnetwork>) `st_precision(<sfnetwork>)` `st_set_precision(<sfnetwork>)` `st_shift_longitude(<sfnetwork>)` `st_transform(<sfnetwork>)` `st_wrap_dateline(<sfnetwork>)` `st_normalize(<sfnetwork>)` `st_zm(<sfnetwork>)` `st_m_range(<sfnetwork>)` `st_z_range(<sfnetwork>)` `st_agr(<sfnetwork>)` `st_agr<-`(<sfnetwork>) `st_reverse(<sfnetwork>)` `st_simplify(<sfnetwork>)` `st_join(<sfnetwork>)` `st_join(<morphed_sfnetwork>)` `st_filter(<sfnetwork>)` `st_filter(<morphed_sfnetwork>)` `st_crop(<sfnetwork>)` `st_crop(<morphed_sfnetwork>)` `st_difference(<sfnetwork>)` `st_difference(<morphed_sfnetwork>)` `st_intersection(<sfnetwork>)` `st_intersection(<morphed_sfnetwork>)` `st_intersects(<sfnetwork>)` `st_sample(<sfnetwork>)` `st_nearest_points(<sfnetwork>)` `st_area(<sfnetwork>)`	sf methods for sfnetworks
`sf_attr()`	Query sf attributes from the active element of a sfnetwork
`as_tibble(<sfnetwork>)`	Extract the active element of a sfnetwork as spatial tibble
Integration with other packages The packages implements basic functions to coerce sfnetwork objects into other formats.
`as.linnet.sfnetwork()`	Convert a sfnetwork into a linnet
`as_s2_geography.sfnetwork()`	s2 methods for sfnetworks
Visualization The package offers basic plot methods. For more advanced plotting, the use of specific plotting and mapping libraries is recommended.
`plot(<sfnetwork>)`	Plot sfnetwork geometries
`autoplot.sfnetwork()`	Plot sfnetwork geometries with ggplot2
Demo data
`roxel`	Road network of Münster Roxel

Reference

Construction

Extensions

Integration with sf

Integration with other packages

Visualization

Demo data