get_aws_terrain

The zoom level to return. The zoom ranges from 1 to 14. Resolution
of the resultant raster is determined by the zoom and latitude. For 
details on zoom and resolution see the documentation from Mapzen at 
<a href="https://mapzen.com/documentation/terrain-tiles/data-sources/#what-is-the-ground-resolution">https://mapzen.com/documentation/terrain-tiles/data-sources/#what-is-the-ground-resolution</a>

A numeric value of a distance, in map units, used to expand the
bounding box that is used to fetch the terrain tiles. This can 
be used for features that fall close to the edge of a tile and 
additional area around the feature is desired. Default is NULL.

expand

Extra configuration parameters to be passed to httr::GET. Common 
usage is to adjust timeout. This is done as 
<code>config=timeout(x)</code> where <code>x</code> is a numeric value in 
seconds. Multiple configuration functions may be passed as a 
vector.

a <code>sp::bbox</code> object that is used to select x,y,z tiles.

This function uses the AWS Terrain Tile service to retrieve an elevation
raster from the geotiff service. It accepts a <code>sp::bbox</code> object as 
input and returns a single raster object covering that extent.

internal

Several web services are available that provide access to elevation
data. This package provides access to several of those services and
returns elevation data either as a SpatialPointsDataFrame from
point elevation services or as a raster object from raster
elevation services. Currently, the package supports access to the
Amazon Web Services Terrain Tiles <https://aws.amazon.com/public-datasets/terrain/>
and the USGS Elevation Point Query Service <http://ned.usgs.gov/epqs/>.

Jeffrey W Hollister

elevatr

Access Elevation Data from Various APIs

Jeffrey Hollister

Tarak Shah

get_aws_terrain function

The zoom level to return. The zoom ranges from 1 to 14. Resolution
of the resultant raster is determined by the zoom and latitude. For 
details on zoom and resolution see the documentation from Mapzen at 
<a href='https://mapzen.com/documentation/terrain-tiles/data-sources/#what-is-the-ground-resolution'>https://mapzen.com/documentation/terrain-tiles/data-sources/#what-is-the-ground-resolution</a>

get_aws_terrain: Get a digital elevation model from the AWS Terrain Tiles

Description

Usage

Arguments