RSAGA (version 1.4.0)

rsaga.contour: Contour Lines from a Grid

Description

Creates a contour lines shapefile from a grid file in SAGA grid format.

Usage

rsaga.contour(
  in.grid,
  out.shapefile,
  zstep,
  zmin,
  zmax,
  vertex = "xy",
  env = rsaga.env(),
  ...
)

Value

The type of object returned depends on the intern argument passed to the rsaga.geoprocessor(). For intern=FALSE it is a numerical error code (0: success), or otherwise (the default) a character vector with the module's console output.

Arguments

in.grid

input: digital elevation model (DEM) as SAGA grid file (default file extension: .sgrd)

out.shapefile

output: contour line shapefile. Existing files will be overwritten!

zstep, zmin, zmax

lower limit, upper limit, and equidistance of contour lines

vertex

optional parameter: vertex type for resulting contours. Default "xy" (or 0). Only available with SAGA GIS 2.1.3+.

• 0 "xy"

• 1 "xyz"

env

A SAGA geoprocessing environment, see rsaga.env()

...

arguments to be passed to rsaga.geoprocessor()

Author

Alexander Brenning (R interface), Olaf Conrad (SAGA module)

See Also

rsaga.geoprocessor()