layer_area_streets: Add a layer to a gpplot2 map with area streets, street names,...
In elipousson/mapbaltimore: Make maps for Baltimore City with open data

layer_area_streets

R Documentation

Add a layer to a gpplot2 map with area streets, street names, or both

Description

Add a layer to a gpplot2 map with area streets, street names, or both.

Usage

layer_area_streets(
  area = NULL,
  street_type = NULL,
  sha_class = NULL,
  dist = NULL,
  diag_ratio = NULL,
  asp = NULL,
  trim = FALSE,
  msa = FALSE,
  show_streets = TRUE,
  show_names = FALSE,
  name_location = NULL,
  edge_dist = 10,
  color = "gray40",
  size = 1,
  ...
)

Arguments

`area`	sf object. Returns streets within this area (after adjustment by dist, diag_ratio, and asp parameters)
`street_type`	selected street subtypes to include. By default, the returned data includes all subtypes except alleys ("STRALY"). Options include c("STRALY", "STRPRD", "STRR", "STREX", "STRFIC", "STRNDR", "STRURD", "STCLN", "STRTN")
`sha_class`	selected SHA classifications to include. "all" selects all streets with an assigned SHA classification (around one-quarter of all street segments). Additional options include c("COLL", "LOC", "MART", "PART", "FWY", "INT")
`dist`	buffer distance in meters. Optional.
`diag_ratio`	ratio to set map extent based diagonal distance of area's bounding box. Ignored when `dist` is provided.
`asp`	Aspect ratio of width to height as a numeric value (e.g. 0.33) or character (e.g. "1:3").
`trim`	Logical. Default `FALSE`. Trim streets to area using `sf::st_intersection()`.
`msa`	Logical. Default `FALSE`. Get streets from cached `baltimore_msa_streets.gpkg` file using `cachedata` parameter of `get_area_data` function.
`show_streets`	Logical. Default TRUE. If FALSE, hides street center lines.
`show_names`	Logical. Default FALSE. If TRUE, shows street names.
`name_location`	Options include c("area", "edge", "top", "left", "bottom", "right", "topleft", "topright", "bottomleft", "bottomright"). Defaults to NULL.
`edge_dist`	Distance buffer to use for placing street names.
`color`	Color of streets and/or text of street name labels.
`size`	Size of the streets and/or street name labels.
`...`	Other parameters to pass along to `ggplot2::geom_sf()` that maps the streets.