dot-makeGVector: Create a GVector
In fasterRaster: Faster Raster and Spatial Vector Processing Using 'GRASS GIS'

.makeGVector

R Documentation

Create a GVector

Create a GVector from a vector existing in the current GRASS session.

.makeGVector(
  src,
  table = NULL,
  build = TRUE,
  extensive = FALSE,
  cats = NULL,
  fail = TRUE
)

`src`	Character: The name of the vector in GRASS.
`table`	A `data.table`, `data.frame`, `GVector` with a table, or character. This can be `data.table(NULL)` or `data.frame(NULL)` if there is no table associated with the vector. If a character, this is interpreted as the name of the table in GRASS.
`build`	Logical: If `TRUE` (default), build topology using GRASS module `v.build`.
`extensive`	Logical: If `TRUE`, do extensive topological checks using `v.build`. The default is `FALSE`.
`cats`	`NULL` (default) or an integer vector: Values of the "cats" (categories) of the vector in GRASS. This is useful only for speeding up the `GVector` creation process when the "cats" have already been ascertained.
`fail`	Logical: If `TRUE` (default), and the vector either has a 0 east-west or north-south extent, then exit the function with an error. If `fail` is `FALSE`, then display a warning and return `NULL`.

A GVector (or NULL if fail is TRUE and the GVector would be invalid).