vec_open_raster

Lazy open: parses the header and tile index but does not decode any
tiles. Returns a list with metadata and an external pointer handle.
The pointer is auto-finalized when garbage collected; call
<code>vec_close_raster()</code> to release earlier.

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_open_raster function

<dl><dt>path</dt>
<dd>Path to a <code>.vec</code> raster file.</dd></dl>

Arguments

Open a .vec raster — vec_open_raster

<dl>

<dt>path</dt>
<dd>Path to a <code>.vec</code> raster file.</dd>

</dl>

vec_open_raster: Open a .vec raster

Description

Usage

Value

Arguments