cache_baltimore_data: Cache data for mapbaltimore package

In elipousson/mapbaltimore: Make maps for Baltimore City with open data

Cache data for mapbaltimore package

Description

Cache data to rappdirs::user_cache_dir("mapbaltimore")

Usage

cache_baltimore_data(data = NULL, filename = NULL, overwrite = FALSE)

cache_msa_streets(
  url =
    "https://geodata.md.gov/imap/rest/services/Transportation/MD_HighwayPerformanceMonitoringSystem/MapServer/2",
  filename = "baltimore_msa_streets.gpkg",
  crs = pkgconfig::get_config("mapbaltimore.crs", 2804),
  overwrite = FALSE
)

cache_edge_of_pavement(
  url =
    "https://gisdata.baltimorecity.gov/egis/rest/services/OpenBaltimore/Edge_of_Pavement/FeatureServer/0",
  filename = "edge_of_pavement.gpkg",
  crs = pkgconfig::get_config("mapbaltimore.crs", 2804),
  overwrite = FALSE
)

cache_baltimore_property(
  url =
    "https://geodata.baltimorecity.gov/egis/rest/services/Housing/dmxOwnership/MapServer/0",
  location = NULL,
  filename = "baltimore_property.gpkg",
  crs = pkgconfig::get_config("mapbaltimore.crs", 2804),
  overwrite = FALSE
)

show_cached_files()

Arguments

data	Data to cache.
filename	File name to use for cached file. Defaults to name of data. If the data is an sf object make sure to include the file type, e.g. "data.gpkg", supported by sf::write_sf(). All other data is written to rda with readr::write_rds().
overwrite	Logical. Default FALSE. If TRUE, overwrite any existing cached files that use the same filename.
url	URL
crs	Coordinate reference system.
location	sf, sfc, or bbox object (or other object convertible with as_bbox(). Optional.

Details

• Use cache_msa_streets() to download and cache street centerline data for all counties in the Baltimore metropolitan area.

• Use cache_edge_of_pavement() to download and cache edge of pavement data for Baltimore city.

Value

show_cached_files() returns a tibble with the columns:

• file, the name of the file,

• size_MB, file size in MB,

• modified, date and time last modified

elipousson/mapbaltimore documentation built on Dec. 1, 2024, 1:22 p.m.