read_urban_area: Download spatial data of urbanized areas in Brazil

In geobr: Download Official Spatial Data Sets of Brazil

Download spatial data of urbanized areas in Brazil

Description

This function reads the official data on the urban footprint of Brazilian cities in the years 2005 and 2015. Original data were generated by the Institute of Geography and Statistics (IBGE) For more information about the methodology, see details at https://biblioteca.ibge.gov.br/visualizacao/livros/liv100639.pdf

Usage

read_urban_area(
  year = 2015,
  code_state = "all",
  simplified = TRUE,
  showProgress = TRUE,
  cache = TRUE
)

Arguments

year	Numeric. Year of the data in YYYY format. Defaults to 2015.
code_state	The two-digit code of a state or a two-letter uppercase abbreviation (e.g. 33 or "RJ"). If code_state="all" (the default), the function downloads all states.
simplified	Logic FALSE or TRUE, indicating whether the function should return the data set with 'original' spatial resolution or a data set with 'simplified' geometry. Defaults to TRUE. For spatial analysis and statistics users should set simplified = FALSE. Borders have been simplified by removing vertices of borders using ⁠st_simplify{sf}⁠ preserving topology with a dTolerance of 100.
showProgress	Logical. Defaults to TRUE display progress bar.
cache	Logical. Whether the function should read the data cached locally, which is faster. Defaults to cache = TRUE. By default, geobr stores data files in a temporary directory that exists only within each R session. If cache = FALSE, the function will download the data again and overwrite the local file.

Value

An ⁠"sf" "data.frame"⁠ object

See Also

Other area functions: read_amazon(), read_biomes(), read_capitals(), read_comparable_areas(), read_country(), read_disaster_risk_area(), read_health_facilities(), read_health_region(), read_immediate_region(), read_indigenous_land(), read_intermediate_region(), read_meso_region(), read_metro_area(), read_micro_region(), read_municipal_seat(), read_municipality(), read_neighborhood(), read_pop_arrangements(), read_region(), read_schools(), read_semiarid(), read_state(), read_statistical_grid(), read_urban_concentrations(), read_weighting_area()

Examples

# Read urban footprint of Brazilian cities in an specific year
d <- read_urban_area(year=2005)

geobr documentation built on Sept. 11, 2024, 6:58 p.m.