ground_res

Determines the ground resolution (in meters per pixel)
at a specified latitude and zoom level.
For further information, refer to the Microsoft Bing Maps Tile System
documentation.

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>.

Florencia D'Andrea

quadkeyr

Generate Raster Images from QuadKey-Identified Datasets

Pilar Fernandez

Maria Paula Caldas

Vincent van Hees

Andrew Pulsipher

CDC's Center for Forecasting and Outbreak Analytics 

MIDAS-NIH COVID-19 urgent grant program 

Paul G. Allen School for Global Health, Washington State University 

ground_res function

<dl><dt>latitude</dt>
<dd>Latitude (in degrees) at which
to measure the ground resolution.</dd>
<dt>zoom</dt>
<dd>Zoom or level of detail,
from 1 (lowest detail) to 23 (highest detail).</dd></dl>

Arguments

Ground resolution at a specified latitude and zoom level — ground_res

<dl>

<dt>latitude</dt>
<dd>Latitude (in degrees) at which
to measure the ground resolution.</dd>


<dt>zoom</dt>
<dd>Zoom or level of detail,
from 1 (lowest detail) to 23 (highest detail).</dd>

</dl>

ground_res: Ground resolution at a specified latitude and zoom level

Description

Usage

Value

Arguments

References

Examples