Package: quadkeyr 0.1.0

Florencia DAndrea

quadkeyr: Generate Raster Images from QuadKey-Identified Datasets

A set of functions of increasing complexity allows users to (1) convert QuadKey-identified datasets, based on 'Microsoft's Bing Maps Tile System', into Simple Features data frames, (2) transform Simple Features data frames into rasters, and (3) process multiple 'Meta' ('Facebook') QuadKey-identified human mobility files directly into raster files. For more details, see D’Andrea et al. (2024) <doi:10.21105/joss.06500>.

Authors:Florencia D'Andrea [aut, cre], Pilar Fernandez [aut], Maria Paula Caldas [rev], Vincent van Hees [rev], Andrew Pulsipher [ctb], CDC's Center for Forecasting and Outbreak Analytics [fnd], MIDAS-NIH COVID-19 urgent grant program [fnd], Paul G. Allen School for Global Health, Washington State University [cph]

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manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
quadkeyr/json (API)

# Install 'quadkeyr' in R:

install.packages('quadkeyr', repos = c('https://ropensci.r-universe.dev', 'https://cloud.r-project.org'))

Reviews:rOpenSci Software Review #619

Bug tracker:https://github.com/ropensci/quadkeyr/issues

Pkgdown/docs site:https://docs.ropensci.org

On CRAN:

geospatial quadkey raster tilemap

5.43 score 15 stars 12 scripts 391 downloads 26 exports 65 dependencies

Last updated from:07cc343b2d (on main). Checks:10 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	217
pkgdown docs	OK	273
source / vignettes	OK	203
linux-release-x86_64	OK	188
macos-release-arm64	OK	160
macos-oldrel-arm64	OK	101
windows-devel	OK	129
windows-release	OK	144
windows-oldrel	OK	135
wasm-release	OK	174

Exports:add_regular_polygon_grid apply_weekly_lag create_qk_grid create_stars_raster format_fb_data get_qk_coord get_regular_polygon_grid grid_to_polygon ground_res latlong_to_pixelXY latlong_to_quadkey mapscale mapsize missing_combinations pixelXY_to_latlong pixelXY_to_tileXY polygon_to_raster qkmap_app quadkey_df_to_polygon quadkey_to_latlong quadkey_to_polygon quadkey_to_tileXY read_fb_mobility_files regular_qk_grid tileXY_to_pixelXY tileXY_to_quadkey

Dependencies:abind base64enc bit bit64 bslib cachem class classInt cli clipr commonmark cpp11 crayon DBI digest dplyr e1071 fastmap fontawesome fs generics glue hms htmltools httpuv jquerylib jsonlite KernSmooth later lifecycle lubridate magrittr MASS memoise mime otel pillar pkgconfig prettyunits progress promises proxy purrr R6 rappdirs Rcpp readr rlang s2 sass sf shiny sourcetools stars tibble tidyselect timechange tzdb units utf8 vctrs vroom withr wk xtable

quadkeyr

Rendered fromquadkeyr.Rmdusingknitr::rmarkdown

Last update: 2025-03-17
Started: 2025-03-17

Help page	Topics
Add the rows needed to complete a regular QuadKey polygon grid derived from the bounding box of the 'quadkey' column of a data.frame.	add_regular_polygon_grid
Apply a 7 day lag to the variable 'n_crisis'	apply_weekly_lag
Create grid of QuadKeys for a particular zoom or level of detail.	create_qk_grid
Create a 'stars' raster	create_stars_raster
Format the Facebook mobility data	format_fb_data
Get lat/long coordinates from the QuadKey	get_qk_coord
Get regular QuadKey polygon grid derived from the bounding box of the 'quadkey' column of a data.frame.	get_regular_polygon_grid
Convert a grid of QuadKeys to square polygons	grid_to_polygon
Ground resolution at a specified latitude and zoom level	ground_res
Convert lat/long coordinates to pixel XY coordinates	latlong_to_pixelXY
Convert latitude/longitude coordinates into QuadKeys	latlong_to_quadkey
Map scale (1 : N)	mapscale
Map size in pixels	mapsize
Detect dates and hours missing in filenames	missing_combinations
Convert pixel XY coordinatess into lat/long coordinates.	pixelXY_to_latlong
Convert pixel XY coordinates into tile XY coordinates	pixelXY_to_tileXY
Create and save raster images for different dates and times	polygon_to_raster
Launch the Shiny App	qkmap_app
Convert data.frame with 'quadkey' column to a 'sf' POLYGON data.frame	quadkey_df_to_polygon
Convert a string of Quadkey numbers to lat/long coordinates	quadkey_to_latlong
Convert a QuadKey into a square polygon	quadkey_to_polygon
Convert a QuadKey into tile XY coordinates.	quadkey_to_tileXY
Read all the .csv files in a folder and format the data.	read_fb_mobility_files
Convert a incomplete QuadKey 'sf' POINT data.frame into a regular grid.	regular_qk_grid
Convert tile XY coordinates into pixel XY coordinates	tileXY_to_pixelXY
Convert tile XY coordinates into a QuadKey.	tileXY_to_quadkey

Package: quadkeyr 0.1.0

quadkeyr: Generate Raster Images from QuadKey-Identified Datasets

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