RSAGA (version 1.4.0)

rsaga.add.grid.values.to.points: Add Grid Values to Point Shapefile

Description

Pick values from SAGA grids and attach them as a new variables to a point shapefile.

Usage

rsaga.add.grid.values.to.points(
  in.shapefile,
  in.grids,
  out.shapefile,
  method = c("nearest.neighbour", "bilinear", "idw", "bicubic.spline", "b.spline"),
  ...
)

Arguments

in.shapefile

Input point shapefile (default extension: .shp).

in.grids

Input: character vector with names of (one or more) SAGA GIS grid files to be converted into a point shapefile.

out.shapefile

Output point shapefile (default extension: .shp).

method

interpolation method to be used; choices: nearest neighbour interpolation (default), bilinear interpolation, inverse distance weighting, bicubic spline interpolation, B-splines.

...

Optional arguments to be passed to rsaga.geoprocessor(), including the env RSAGA geoprocessing environment.

Author

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

Details

Retrieves information from the selected grids at the positions of the points of the selected points layer and adds it to the resulting layer.

See Also

pick.from.points(), pick.from.ascii.grid(), pick.from.saga.grid(), rsaga.grid.to.points()