get_layers_by_spatial {arcpullr}R Documentation

Retrieve ArcGIS REST API spatial layer by spatial query

Description

These functions are wrappers around get_spatial_layer that are specialized for querying by a spatial layer. They will make a POST request to the query URL which returns data (if available) based on the appropriate spatial feature (geometry) and relationship (sp_rel).

Usage

get_layer_by_poly(url, geometry, sp_rel = "contains", ...)

get_layer_by_line(url, geometry, sp_rel = "intersects", ...)

get_layer_by_point(url, geometry, sp_rel = "intersects", ...)

get_layer_by_multipoint(url, geometry, sp_rel = "intersects", ...)

get_layer_by_envelope(url, geometry, sp_rel = "intersects", ...)

get_layer_by_spatial(
  url,
  geometry,
  geom_type,
  sp_ref = NULL,
  sp_rel = "intersects",
  ...
)

Arguments

url

A character string of the url for the layer to pull

geometry

An sf object used for the spatial query

sp_rel

Character. The type of relationship to query by. Possible options include "intersects", "contains", and "crosses"

...

Additional arguements to pass to get_spatial_layer

geom_type

A character of the geometry type to be used. This param is automatically specified in all get_layer_by_* functions except get_spatial_layer

sp_ref

The spatial reference value

Value

An object of class "sf" of the appropriate layer

Examples

base_wdnr_url <- "https://dnrmaps.wi.gov/arcgis/rest/services/"
hydro_path <- "WT_SWDV/WT_Inland_Water_Resources_WTM_Ext_v2/MapServer/2"
hydro_url <- paste0(base_wdnr_url, hydro_path)
mke_waters <- get_layer_by_poly(url = hydro_url, mke_county)

[Package arcpullr version 0.2.5 Index]