polygon_from_extent

Turn an extent object into a polygon

internal

Functions to automate downloading geospatial data available
from several federated data sources (mainly sources maintained by the
US Federal government). Currently, the package enables extraction from
nine datasets: The National Elevation Dataset digital elevation
models (1 and 1/3 arc-second; USGS); The National Hydrography Dataset
(USGS); The Soil Survey Geographic (SSURGO) database from the National
Cooperative Soil Survey (NCSS), which is led by the Natural Resources
Conservation Service (NRCS) under the USDA; the Global Historical
Climatology Network (GHCN), coordinated by National Climatic Data
Center at NOAA; the Daymet gridded estimates of daily weather
parameters for North America, version 4, available from the Oak Ridge
National Laboratory's Distributed Active Archive Center (DAAC); the
International Tree Ring Data Bank; the National Land Cover
Database (NLCD); the Cropland Data Layer from the National Agricultural
Statistics Service; and the PAD-US dataset of protected area boundaries
from the USGS.

R. Bocinsky

FedData

Functions to Automate Downloading Geospatial Data Available from
Several Federated Data Sources

Dylan Beaudette

Scott Chamberlain

Jeffrey Hollister

Julia Gustavsen

polygon_from_extent function

<dl><dt>x</dt>
<dd>An object from which an bounding box object can be retrieved.</dd>
<dt>proj4string</dt>
<dd>A PROJ.4 formatted string defining the required projection.</dd></dl>

Arguments

Turn an extent object into a polygon — polygon_from_extent

<dl>

<dt>x</dt>
<dd>An object from which an bounding box object can be retrieved.</dd>


<dt>proj4string</dt>
<dd>A PROJ.4 formatted string defining the required projection.</dd>

</dl>

polygon_from_extent: Turn an extent object into a polygon

Description

Usage

Value

Arguments