vec_extract_points

Extract band values at (x, y) points from a .vec raster

A minimal columnar query engine with lazy execution on datasets
larger than RAM. Provides 'dplyr'-like verbs (filter(), select(), mutate(),
group_by(), summarise(), joins, window functions) and common aggregations
(n(), sum(), mean(), min(), max(), sd(), first(), last()) backed by a
pure C11 pull-based execution engine and a custom on-disk format ('.vtr').
Reads and writes 'GeoTIFF' (including tiled and 'BigTIFF' layouts) and a
tiled raster format ('.vec') with overview pyramids and time cubes for
larger-than-RAM raster data.

Gilles Colling

vectra

Columnar Query Engine for Larger-than-RAM Data

vec_extract_points function

<dl><dt>r</dt>
<dd>A <code>vectra_raster</code> from <code>vec_open_raster()</code>.</dd>
<dt>x</dt>
<dd>Numeric vector of x coordinates in CRS units.</dd>
<dt>y</dt>
<dd>Numeric vector of y coordinates, same length as <code>x</code>.</dd></dl>

Arguments

Extract band values at (x, y) points from a .vec raster — vec_extract_points

<dl>

<dt>r</dt>
<dd>A <code>vectra_raster</code> from <code>vec_open_raster()</code>.</dd>


<dt>x</dt>
<dd>Numeric vector of x coordinates in CRS units.</dd>


<dt>y</dt>
<dd>Numeric vector of y coordinates, same length as <code>x</code>.</dd>

</dl>

vec_extract_points: Extract band values at (x, y) points from a .vec raster

Description

Usage

Value

Arguments