Function reference • sfext

Read and write spatial data

read_sf_ext() read_sf_pkg() read_sf_path() read_sf_zip() read_sf_rdata() read_sf_query() read_sf_excel() read_sf_csv() read_sf_url() read_sf_esri() read_sf_felt() read_sf_gist() read_sf_gmap() read_sf_download() read_sf_gsheet(): Read spatial data in a bounding box to a simple feature object from multiple sources

write_sf_ext() write_sf_list() write_sf_cache() write_sf_gist() write_sf_gsheet(): Write or cache a simple feature object to a file

write_sf_svg(): Write an sf object to an svg file

read_sf_exif(): Read EXIF metadata to create a simple feature object or write EXIF metadata to image files

write_exif_from(): Write EXIF data for photos on spatial join with a sf object or list of sf objects

get_data_dir() list_data_files(): Check if data directory exists and create a new directory if needed

Check and convert sf, sfc, and bbox objects

is_sf() is_sfg() is_sfc() is_bbox() is_raster() is_sp() is_geo_coords(): What is the class or spatial attributes of this feature?

check_sf(): Check if x is an sf object

is_geom_type() is_point() is_multipoint() is_line() is_multiline() is_polygon() is_multipolygon() st_is_ext(): What geometry type is this feature?

as_point() as_points() as_startpoint() as_endpoint() as_line() as_lines() as_polygons() as_centroid(): Convert an sf, numeric, or other object to a POINT (sfg) or POINT, MULTIPOINT, LINESTRING, or MULTILINESTRING (sfc) object

as_sf() as_bbox() as_sfc() as_sf_class(): Convert an object to a simple feature or bounding box object

as_sf_list() new_sf_list() is_sf_list() sf_list_rbind() map_as_sf_list() map_as_sf(): Creating and checking sf lists

as_xy(): Convert data to a data frame with X/Y coordinate pairs

as_crs() is_same_crs() is_wgs84(): Convert object to coordinate reference system or check coordinate reference system

Converting sf and data frame objects

sf_to_df() df_to_sf(): Convert between simple feature and data frame objects

address_to_sf(): Use tidygeocoder to convert an address or data frame with an address column to an sf object

coords_to_sf() check_coords() rev_coords() has_coords() format_coords() separate_coords(): Convert a data.frame with one or more coordinate columns to an sf object

lonlat_to_sfc(): Convert a lon/lat or lat/lon coordinate pair to a sfc object

Modify sf, sfc, and bbox objects

st_bbox_ext() st_bbox_asp(): Get a bounding box buffered a set distance or to match an aspect ratio

st_buffer_ext() st_edge(): Buffer a simple feature or bounding box object

st_erase() st_trim(): Erase or trim geometry of a sf or sfc object

st_clip(): Clip the side or corner of a simple feature or bounding box object

st_concave_hull_ext(): Make a concave hull around simple feature object by attribute

st_union_ext() st_union_by(): Union simple feature objects and combine name column values

st_join_ext(): Complete a spatial join using a simple feature objects or an object and list

st_filter_ext() st_filter_geom_type(): Filter, crop, trim, or erase a simple feature object or list

st_filter_pct() st_filter_pct_area() st_filter_pct_length(): Filter by share of length or area of one geometry overlapping with a second geometry

st_center() st_circle() st_circumscribed_circle() st_donut(): Modify the geometry of a simple feature or bounding box object

st_square() st_inscribed_square(): Create a square within or around a simple feature object or collection

st_scale_rotate(): Scale and rotate a simple feature object, simple feature collection, or bounding box

st_nudge(): Nudge a simple feature to the center of another feature and/or a set distance

st_transform_ext() st_omerc() st_wgs84(): Transform or convert coordinates of a simple feature or bounding box object

st_make_valid_ext(): Checks if all geometries are already valid and make valid if not

st_cast_ext(): Cast geometry of a simple feature object or simple feature collection to another type

st_make_grid_ext(): Make a grid over a simple feature bounding box

Get information about sf, sfc, and bbox objects

get_coords() get_minmax(): Get coordinates for a simple feature or bounding box object

get_area() st_area_ext() get_length() st_length_ext() get_dist() st_distance_ext() get_bearing() st_bearing(): Get measurements for simple feature objects

Additional utility functions for sf and bbox objects

transform_sf() relocate_sf_col() rename_sf_col() get_sf_col() get_sf_colnames(): Additional utility functions for sf objects

number_features() number_sf() sort_features() sort_sf(): Sort and number features by coordinates or distance

count_features(): Count simple features based on relationship with a second simple feature object

count_sf_ext(): Count extended for working with sf objects

make_sf_grid_list(): Make a sf list by grid position

sf_bbox_corners(): Get bounding box corner points from a bbox, sfc, or sf object

sf_bbox_dist() sf_bbox_xdist() sf_bbox_ydist() sf_bbox_diagdist() sf_bbox_diag_ratio_to_dist() sf_bbox_asp() sf_bbox_orientation() sf_bbox_check_fit(): Measure a bounding box using x, y, or diagonal distance

sf_bbox_to_sf() sf_bbox_to_sfc() sf_bbox_transform() sf_bbox_point() sf_bbox_to_wkt() sf_bbox_to_lonlat_query() sf_bbox_to_npc(): Convert and tranform bounding boxes

sf_bbox_shift() sf_bbox_contract() sf_bbox_expand(): Shift sides, contract, or expand a bounding box

cli_format(<sf>): cli_format style for sf objects

Utility functions for units and scales

is_dist_units() is_diff_dist() is_same_dist() is_longer() is_shorter() get_dist_units() as_dist_units() is_diff_area() is_same_area() is_same_units(): General utility functions for working with distance units objects

convert_dist_units(): Convert distance (and area) values between different units

convert_dist_scale(): Convert distance from scale to actual units

compare_dist(): Compare a distance to the dimension of a bounding box or another distance value

bind_units_col(): Bind units column to data frame

get_scale(): Get standard scales and convert to scale distances

Utility functions for paper and image sizes

get_paper(): Get standard paper and image sizes

get_social_image(): Get social media image size to match platform and format

get_asp(): Get aspect ratio from string or based on specific paper and margins

get_margin(): Get margins for a ggplot2 plot or map based on style or distance

Helper functions for interactive mapping

mapview_ext() mapview_exif() mapview_popup_img(): Use mapview to interactively explore spatial data

rdeck_edit() rdeck_select() editor_options(): rdeck editor

Reference data for units, scales, and paper

dist_units: Distance units (data frame)

dist_unit_options: Distance units (vector)

area_unit_options: Area units (vector)

standard_scales: Standard map, architectural, and engineering scales

paper_sizes: Standard paper and image sizes