Generate Raster Images from QuadKey-Identified Datasets

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Documentation for package ‘quadkeyr’ version 0.1.0

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

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