compareGeom: Determine if GRasters and/or GVectors are geographically...

In adamlilith/fasterRaster: Faster Raster and Spatial Vector Processing Using 'GRASS GIS'

Determine if GRasters and/or GVectors are geographically comparable

Description

compareGeom() compares geographic metadata between two or more GRasters and/or GVectors. In many cases, spatial objects must be comparable for them to "interact" (e.g., conducting arithmetic operations, masking, etc.).

Usage

## S4 method for signature 'GRaster,GRaster'
compareGeom(
  x,
  y,
  ...,
  location = TRUE,
  mapset = TRUE,
  topo = TRUE,
  lyrs = FALSE,
  crs = TRUE,
  ext = TRUE,
  zext = TRUE,
  rowcol = TRUE,
  depths = TRUE,
  res = TRUE,
  zres = TRUE,
  stopOnError = TRUE,
  messages = TRUE
)

## S4 method for signature 'GVector,GVector'
compareGeom(
  x,
  y,
  ...,
  location = TRUE,
  mapset = TRUE,
  topo = FALSE,
  crs = TRUE,
  ext = FALSE,
  zext = FALSE,
  geometry = FALSE,
  stopOnError = TRUE,
  messages = TRUE
)

## S4 method for signature 'GRaster,GVector'
compareGeom(
  x,
  y,
  ...,
  location = TRUE,
  mapset = TRUE,
  topo = FALSE,
  crs = TRUE,
  ext = FALSE,
  zext = FALSE,
  stopOnError = TRUE,
  messages = TRUE
)

## S4 method for signature 'GVector,GRaster'
compareGeom(
  x,
  y,
  ...,
  location = TRUE,
  mapset = TRUE,
  topo = FALSE,
  crs = TRUE,
  ext = FALSE,
  zext = FALSE,
  stopOnError = TRUE,
  messages = TRUE
)

Arguments

x, y, ...	GRasters or GVectors. If y is GRaster, then the ... must also be GRasters (or missing). If y is GVector, then the ... must also be GVectors (or missing).
location, mapset	Logical: Compare GRASS "project/location" and "mapsets" (see vignette("projects_mapsets", package = "fasterRaster")). Default is TRUE.
topo	Logical: Test for same topology (2D or 3D). By default, this is TRUE for raster-raster comparisons, and FALSE for all others.
lyrs	Logical (rasters only): Compare number of layers of "stacked" rasters. Note this is different from number of vertical "depths" of a raster. Default is FALSE.
crs	Logical: Compare coordinate reference systems. Default is TRUE.
ext	Logical: If TRUE, test for same extent. By default, is TRUE for raster-raster comparison and FALSE for all others.
zext	Logical: Test for same vertical extents (3D only). By default, this is TRUE for raster-raster comparisons, and FALSE for all others.
rowcol	Logical (rasters only): Test for same number of rows and columns. Default is TRUE.
depths	Logical (rasters only): Test for same number of depths. Default is TRUE.
res	Logical (rasters only): Test for same resolution in x- and y-dimensions. Default is TRUE.
zres	Logical (rasters only): Test for same resolution in z dimension. Default is TRUE.
stopOnError	Logical: If TRUE (default), throw an error with an explanation if the objects are not comparable. If FALSE (default), return TRUE or FALSE.
messages	Logical: If ⁠TRUE (default), display a warning if a condition is not met. This only comes into effect if ⁠stopOnErrorisFALSE'.
geometry	Logical (vector-vector comparison only): Compare geometry. Default is FALSE.

Value

Logical (invisibly): TRUE for no mismatches detected, FALSE for incompatibility), or side effect of throwing an error.

adamlilith/fasterRaster documentation built on Oct. 26, 2024, 4:06 p.m.