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flor14 committed Mar 18, 2024
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Expand Up @@ -38,30 +38,30 @@ the processing of Meta (also known as Facebook) Mobility data [@data4good].

The goal of `quadkeyr` is to:

1. [**Convert a QuadKey to a Simple Features data.frame (and more)**](https://docs.ropensci.org/quadkeyr/articles/quadkey_to_sf_conversion.html)
1. [**Convert a QuadKey to a Simple Features data.frame (and more):**](https://docs.ropensci.org/quadkeyr/articles/quadkey_to_sf_conversion.html)
`quadkeyr` provides functions to convert QuadKeys
to a `sf` POINT data.frame or `sf` POLYGON data.frame [@sf] (\autoref{fig:fig1}).
to an `sf` POINT data.frame or `sf` POLYGON data.frame [@sf] (\autoref{fig:fig1}).
Additionally, it offers all the R functions
described in the [official documentation](https://learn.microsoft.com/en-us/bingmaps/articles/bing-maps-tile-system) [@bing_maps]
for converting QuadKeys to and from tiles, pixels, and geographic coordinates.

![Convert a QuadKey to a Simple Features data.frame \label{fig:fig1}](../vignettes/workflow_quadkey.png){height="200pt"}

2. [**Generate Raster Images from Quadkey-Identified Data**](https://docs.ropensci.org/quadkeyr/articles/quadkey_identified_data_to_raster.html)
2. [**Generate Raster Images from Quadkey-Identified Data:**](https://docs.ropensci.org/quadkeyr/articles/quadkey_identified_data_to_raster.html)
Complete a grid of QuadKeys within a specified area and zoom level,
and create a `stars` raster [@stars].
You can also directly convert QuadKeys in a data.frame column
into an `sf` POLYGON data.frame (\autoref{fig:fig2}).

![Generate a `sf` POLYGON data.frame or a `stars` object from Quadkey-Identified datasets \label{fig:fig2}](../vignettes/workflow_raster.png){height="200pt"}

3. [**Convert Meta (Facebook) Mobility QuadKey-Identified Datasets into Raster Files**](https://docs.ropensci.org/quadkeyr/articles/facebook_mobility_csvs_to_raster_files.html)
3. [**Convert Meta (Facebook) Mobility QuadKey-Identified Datasets into Raster Files:**](https://docs.ropensci.org/quadkeyr/articles/facebook_mobility_csvs_to_raster_files.html)
Convert Meta (Facebook) mobility data `.csv` files into `.tif` files by day and
hour reported (\autoref{fig:fig3}).

![Convert Meta (Facebook) Mobility QuadKey-Identified Datasets into Raster Files \label{fig:fig3}](../vignettes/workflow_facebook.png){height="200pt"}

4. [**Offer an App for visualizing QuadKeys on a map**](https://docs.ropensci.org/quadkeyr/articles/quadkey_visualization_app.html)
4. [**Offer an App for visualizing QuadKeys on a map:**](https://docs.ropensci.org/quadkeyr/articles/quadkey_visualization_app.html)
Introduce a QuadKey visualization application
enabling users to validate function outcomes.

Expand All @@ -75,7 +75,7 @@ at various zoom levels.

QuadKeys represent a location on a map by encoding
its hierarchical spatial position
as a sequence of characters \autoref{fig:fig3}.
as a sequence of characters (\autoref{fig:fig3}).
They provide an efficient method to address and retrieve specific map tiles,
facilitating rapid display within mapping applications.

Expand Down Expand Up @@ -124,7 +124,7 @@ The package `slippymath` [@slippymath] is the sole package
in the R ecosystem dedicated to analyzing tile maps.
Despite some similarities
between `quadkeyr` and `slippymath`,
both packages were developed with different objectives.
the packages were developed with different objectives.

The goal of `quadkeyr` is
to provide a new tool to facilitate the analysis of Meta (Facebook) Mobility data,
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