terra: align – R documentation

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align

Align a SpatExtent

Description

Align an SpatExtent with a SpatRaster This can be useful to create a new SpatRaster with the same origin and resolution as an existing SpatRaster. Do not use this to force data to match that really does not match (use e.g. resample or (dis)aggregate for this).

It is also possible to align a SpatExtent to a clean divisor.

Usage

## S4 method for signature 'SpatExtent,SpatRaster'
align(x, y, snap="near")

## S4 method for signature 'SpatExtent,numeric'
align(x, y)

Arguments

`x`	SpatExtent
`y`	SpatRaster or numeric
`snap`	Character. One of "near", "in", or "out", to determine in which direction the extent should be aligned. To the nearest border, inwards or outwards

Value

SpatExtent

Examples

r <- rast()
e <- ext(-10.1, 9.9, -20.1, 19.9)
ea <- align(e, r)
e
ext(r)
ea

align(e, 0.5)

terra

Spatial Data Analysis

v1.2-10

GPL (>= 3)

Authors

Robert J. Hijmans [cre, aut] (<https://orcid.org/0000-0001-5872-2872>), Roger Bivand [ctb] (<https://orcid.org/0000-0003-2392-6140>), Karl Forner [ctb], Jeroen Ooms [ctb] (<https://orcid.org/0000-0002-4035-0289>), Edzer Pebesma [ctb] (<https://orcid.org/0000-0001-8049-7069>)

Initial release

2021-05-12